Rotary Vane Vacuum Pumps

BVV™ V4D 4CFM Two Stage Vacuum Pump   This is the BVV™ V4D 4CFM Two Stage Vacuum Pump used in botanical extraction. Please refer to these charts for vacuum specifications at altitude and conversions: Vacuum at Altitude Chart   Vacuum Conversion Chart   Key Feature  Internal Check Valve Oil Mist Filter Cap Larger Oil Reservoir for longer oil life Lightweight Rubber Feet for noise dampening Reliable, economical, and efficient   Models BVV4D BVV7S BVV9D Stage 2 1 2 Ultimate Vacuum (Microns) 15 75 15 Refrigerant Classes A1 Non-Toxic, Non Flammable Dimensions (in) 12.4 x 4.8 x 10.16 12.4 x 4.8 x 10.16 15 x 6.3 x 11.22 Weight (lbs) 19.4 16.5 32 Free Air Displacement 4.3 CFM 6.4 CFM 8.5 CFM Motor Size (HP) RPM 1 HP 3440 RPM Oil Capacity 10oz / 300ml 14.5oz / 410ml 24oz / 680ml Voltage 110V 60 Hz Power Cord Hard Wired 3m / 9.8' Power Cord Power Switch Standard On / Off Operating Temperature Range 32F to 125 F (0C to 52C) Gas Ballast Valve Yes No Yes Intake Fittings Stainless Steel Inlet Fitting with 1/4" SAE & 3/8" JIC Male Ports   Pump Warranty Information Customers using solvents such as stabilization resin, rotaries (MinWax™, Gator Venom™ etc.), alcohol and other polar solvents must use the vacuum pumps in conjunction with a cold trap for evacuations in excess of 5 minutes. (Excludes Cactus Juice™) If the consumer is using the pump for prolonged periods of time exceeding 5 minutes we require that a cold trap is used or the pump warranty is void. These stabilization resins have the ability to break down the internal components of the pump that are plastic resulting in a seized motor voiding all warranties. When evacuation exceeds 5 minutes these solvents begin to vaporize and then re-condense in the vacuum pump reservoir. Once enough solvent re-condenses in the pump displacing the oil the plastic internal components may begin to warp, melt or seize. The use of a cold trap will condense the vapors prior to making their way to the vacuum pump preventing pump damage due to excessive use. Furthermore, Minwax Wood Hardener™ is not to be used with any vacuum pumps, EVER. (A seized motor will result within the first use.) To prevent these issues from happening to your process, change the Oil after each vacuum pump use, Even if the use time is only 5min.

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BVV™ SF6S 6CFM Two Stage Spark Free Vacuum Pump   This is the BVV™ SF6S 6CFM Two Stage Spark Free Vacuum Pump Please Refer to these charts for vacuum specifications at altitude and conversions: Vacuum at Altitude Chart Vacuum Conversion Chart Key Features: Internal Check Valve Spark Free Construction Oil Mist Filter Cap Larger Oil Reservoir for longer Oil life Lightweight Rubber Feet for noise dampening Reliable, Economical and Efficient.   Models BVVSF6S BVVSF6D BVVSF12D Stage 1 2 2 Ultimate Vacuum (Microns) 75 15 15 Refrigerant Classes A1 Non-Toxic, Non Flammable A2 Non-Toxic, Low Flammability A3 Non-Toxic, High Flammability Dimensions (in) 12.4 x 4.8 x 10.16 13 x 5.5 x 10.7 15 x 6.3 x 11.22 Weight (lbs) 16.5 24.3 33.6 Free Air Displacement 6.4 CFM 6.4 CFM 12.8 CFM Motor Size (HP) RPM 1 HP 3440 RPM Oil Capacity 14.5oz / 410ml 19oz / 410ml 20.6oz / 680ml Voltage 110V 60 Hz Power Cord Hard Wired 3m / 9.8' Power Cord Power Switch Ignition Proof On / Off Switch Operating Temperature Range 32F to 125 F (0C to 52C) Gas Ballast Valve No Yes Yes Intake Fittings Stainless Steel Inlet Fitting with 1/4" SAE & 3/8" JIC Male Ports Pump Warranty Information • Customers using solvents such as stabilization resins (MinWax™, Gator Venom™ etc.), alcohol and other polar solvents must use the vacuum pumps in conjunction with a cold trap for evacuations in excess of 5 minutes. (Excludes Cactus Juice™)• If the consumer is using the pump for prolonged periods of time exceeding 5 minutes we require that a cold trap is used or the pump warranty is void.• These stabilization resins have the ability to break down the internal components of the pump that are plastic resulting in a seized motor voiding all warranties. • When evacuation exceeds 5 minutes these solvents begin to vaporize and then re-condense in the vacuum pump reservoir. Once enough solvent re-condenses in the pump displacing the oil the plastic internal components may begin to warp, melt or seize. The use of a cold trap will condense the vapors prior to making their way to the vacuum pump preventing pump damage due to excessive use. Furthermore, Minwax Wood Hardener™ is not to be used with any vacuum pumps, EVER. (A seized motor will result within the first use.)• To prevent these issues from happening to your process, change the Oil after each vacuum pump use, Even if the use time is only 5min.

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BVV™ SF6D 6CFM Two Stage Spark Free Vacuum Pump   This is the BVV™ SF6D 6CFM Two Stage Spark Free Vacuum Pump Please Refer to these charts for vacuum specifications at altitude and conversions: Vacuum at Altitude Chart Vacuum Conversion Chart Key Features: Internal Check Valve Spark Free Construction Oil Mist Filter Cap Larger Oil Reservoir for longer Oil life Lightweight Rubber Feet for noise dampening Reliable, Economical and Efficient.   Models BVVSF6S BVVSF6D BVVSF12D Stage 1 2 2 Ultimate Vacuum (Microns) 75 15 15 Refrigerant Classes A1 Non-Toxic, Non Flammable A2 Non-Toxic, Low Flammability A3 Non-Toxic, High Flammability Dimensions (in) 12.4 x 4.8 x 10.16 13 x 5.5 x 10.7 15 x 6.3 x 11.22 Weight (lbs) 16.5 24.3 33.6 Free Air Displacement 6.4 CFM 6.4 CFM 12.8 CFM Motor Size (HP) RPM 1 HP 3440 RPM Oil Capacity 14.5oz / 410ml 19oz / 410ml 20.6oz / 680ml Voltage 110V 60 Hz Power Cord Hard Wired 3m / 9.8' Power Cord Power Switch Ignition Proof On / Off Switch Operating Temperature Range 32F to 125 F (0C to 52C) Gas Ballast Valve No Yes Yes Intake Fittings Stainless Steel Inlet Fitting with 1/4" SAE & 3/8" JIC Male Ports Pump Warranty Information • Customers using solvents such as stabilization resins (MinWax™, Gator Venom™ etc.), alcohol and other polar solvents must use the vacuum pumps in conjunction with a cold trap for evacuations in excess of 5 minutes. (Excludes Cactus Juice™)• If the consumer is using the pump for prolonged periods of time exceeding 5 minutes we require that a cold trap is used or the pump warranty is void.• These stabilization resins have the ability to break down the internal components of the pump that are plastic resulting in a seized motor voiding all warranties. • When evacuation exceeds 5 minutes these solvents begin to vaporize and then re-condense in the vacuum pump reservoir. Once enough solvent re-condenses in the pump displacing the oil the plastic internal components may begin to warp, melt or seize. The use of a cold trap will condense the vapors prior to making their way to the vacuum pump preventing pump damage due to excessive use. Furthermore, Minwax Wood Hardener™ is not to be used with any vacuum pumps, EVER. (A seized motor will result within the first use.)• To prevent these issues from happening to your process, change the Oil after each vacuum pump use, Even if the use time is only 5min.

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BVV™ V7S 7CFM Single Stage Vacuum Pump   This is the BVV™ V7S 7CFM Single Stage Vacuum Pump. Please Refer to these charts for vacuum specifications at altitude and conversions: Vacuum at Altitude Chart   Vacuum Conversion Chart   Key Features: Internal Check Valve Oil Mist Filter Cap Larger Oil Reservoir for longer Oil life Lightweight Rubber Feet for noise dampening Reliable, Economical and Efficient.     Models BVV4D BVV7S BVV9D Stage 2 1 2 Ultimate Vacuum (Microns) 15 75 15 Refrigerant Classes A1 Non-Toxic, Non Flammable Dimensions (in) 12.4 x 4.8 x 10.16 12.4 x 4.8 x 10.16 15 x 6.3 x 11.22 Weight (lbs) 19.4 16.5 32 Free Air Displacement 4.3 CFM 6.4 CFM 8.5 CFM Motor Size (HP) RPM 1 HP 3440 RPM Oil Capacity 10oz / 300ml 14.5oz / 410ml 24oz / 680ml Voltage 110V 60 Hz Power Cord Hard Wired 3m / 9.8' Power Cord Power Switch Standard On / Off Operating Temperature Range 32F to 125 F (0C to 52C) Gas Ballast Valve Yes No Yes Intake Fittings Stainless Steel Inlet Fitting with 1/4" SAE & 3/8" JIC Male Ports Pump Warranty Information   Customers using solvents such as stabilization resins (MinWax™, Gator Venom™ etc.), alcohol and other polar solvents must use the vacuum pumps in conjunction with a cold trap for evacuations in excess of 5 minutes. (Excludes Cactus Juice™)   If the consumer is using the pump for prolonged periods of time exceeding 5 minutes we require that a cold trap is used or the pump warranty is void.   These stabilization resins have the ability to break down the internal components of the pump that are plastic resulting in a seized motor voiding all warranties.   When evacuation exceeds 5 minutes these solvents begin to vaporize and then re-condense in the vacuum pump reservoir. Once enough solvent re-condenses in the pump displacing the oil the plastic internal components may begin to warp, melt or seize. The use of a cold trap will condense the vapors prior to making their way to the vacuum pump preventing pump damage due to excessive use. Furthermore, Minwax Wood Hardener™ is not to be used with any vacuum pumps, EVER. (A seized motor will result within the first use.)   To prevent these issues from happening to your process, change the Oil after each vacuum pump use, Even if the use time is only 5min.

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BVV™ V9D 9CFM Two Stage Vacuum Pump   This is the BVV™ V9D 9CFM Two Stage Vacuum Pump. Please Refer to these charts for vacuum specifications at altitude and conversions: Vacuum at Altitude Chart   Vacuum Conversion Chart   Key Features: Internal Check Valve Oil Mist Filter Cap Larger Oil Reservoir for longer Oil life Lightweight Rubber Feet for noise dampening Reliable, Economical and Efficient.   Models BVV4D BVV7S BVV9D Stage 2 1 2 Ultimate Vacuum (Microns) 15 75 15 Refrigerant Classes A1 Non-Toxic, Non Flammable Dimensions (in) 12.4 x 4.8 x 10.16 12.4 x 4.8 x 10.16 15 x 6.3 x 11.22 Weight (lbs) 19.4 16.5 32 Free Air Displacement 4.3 CFM 6.4 CFM 8.5 CFM Motor Size (HP) RPM 1 HP 3440 RPM Oil Capacity 10oz / 300ml 14.5oz / 410ml 24oz / 680ml Voltage 110V 60 Hz Power Cord Hard Wired 3m / 9.8' Power Cord Power Switch Standard On / Off Operating Temperature Range 32F to 125 F (0C to 52C) Gas Ballast Valve Yes No Yes Intake Fittings Stainless Steel Inlet Fitting with 1/4" SAE & 3/8" JIC Male Ports   Pump Warranty Information Customers using solvents such as stabilization resins (MinWax™, Gator Venom™ etc.), alcohol and other polar solvents must use the vacuum pumps in conjunction with a cold trap for evacuations in excess of 5 minutes. (Excludes Cactus Juice™)   If the consumer is using the pump for prolonged periods of time exceeding 5 minutes we require that a cold trap is used or the pump warranty is void.   These stabilization resins have the ability to break down the internal components of the pump that are plastic resulting in a seized motor voiding all warranties.   When evacuation exceeds 5 minutes these solvents begin to vaporize and then re-condense in the vacuum pump reservoir. Once enough solvent re-condenses in the pump displacing the oil the plastic internal components may begin to warp, melt or seize. The use of a cold trap will condense the vapors prior to making their way to the vacuum pump preventing pump damage due to excessive use. Furthermore, Minwax Wood Hardener™ is not to be used with any vacuum pumps, EVER. (A seized motor will result within the first use.)   To prevent these issues from happening to your process, change the Oil after each vacuum pump use, Even if the use time is only 5min.

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BVV™ SF12D 12CFM Two Stage Spark Free Vacuum Pump   This is the BVV™ SF12D 12CFM Two Stage Spark Free Vacuum Pump. Please Refer to these charts for vacuum specifications at altitude and conversions: Vacuum at Altitude Chart Vacuum Conversion Chart Key Features: Internal Check Valve Spark Free Construction Oil Mist Filter Cap Larger Oil Reservoir for longer Oil life Lightweight Rubber Feet for noise dampening Reliable, Economical and Efficient. Models BVVSF6S BVVSF6D BVVSF12D Stage 1 2 2 Ultimate Vacuum (Microns) 75 15 15 Refrigerant Classes A1 Non-Toxic, Non Flammable A2 Non-Toxic, Low Flammability A3 Non-Toxic, High Flammability Dimensions (in) 12.4 x 4.8 x 10.16 13 x 5.5 x 10.7 15 x 6.3 x 11.22 Weight (lbs) 16.5 24.3 33.6 Free Air Displacement 6.4 CFM 6.4 CFM 12.8 CFM Motor Size (HP) RPM 1 HP 3440 RPM Oil Capacity 14.5oz / 410ml 19oz / 410ml 20.6oz / 680ml Voltage 110V 60 Hz Power Cord Hard Wired 3m / 9.8' Power Cord Power Switch Ignition Proof On / Off Switch Operating Temperature Range 32F to 125 F (0C to 52C) Gas Ballast Valve No Yes Yes Intake Fittings Stainless Steel Inlet Fitting with 1/4" SAE & 3/8" JIC Male Ports Pump Warranty Information • Customers using solvents such as stabilization resins (MinWax™, Gator Venom™ etc.), alcohol and other polar solvents must use the vacuum pumps in conjunction with a cold trap for evacuations in excess of 5 minutes. (Excludes Cactus Juice™)• If the consumer is using the pump for prolonged periods of time exceeding 5 minutes we require that a cold trap is used or the pump warranty is void.• These stabilization resins have the ability to break down the internal components of the pump that are plastic resulting in a seized motor voiding all warranties. • When evacuation exceeds 5 minutes these solvents begin to vaporize and then re-condense in the vacuum pump reservoir. Once enough solvent re-condenses in the pump displacing the oil the plastic internal components may begin to warp, melt or seize. The use of a cold trap will condense the vapors prior to making their way to the vacuum pump preventing pump damage due to excessive use. Furthermore, Minwax Wood Hardener™ is not to be used with any vacuum pumps, EVER. (A seized motor will result within the first use.)• To prevent these issues from happening to your process, change the Oil after each vacuum pump use, Even if the use time is only 5min.

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BVV™ VE115 Single-Stage 3CFM Vacuum Pump   This is the BVV™ Brand VE115 3CFM Single Stage Vacuum Pump. Single-stage vacuums pump exhaust into a chamber in the pump, which separates the oil from the pumped gas. Then, the oil is returned and the gas is exhausted.  Please refer to these charts for vacuum specifications at altitude and conversions:   Vacuum at Altitude Chart   Vacuum Conversion Chart     Key Features: Internal Check Valve Oil Mist Filter Cap Larger Oil Reservoir for longer Oil life Lightweight Rubber Feet for noise dampening Reliable, Economical and Efficient.   Specification Free Air Displacement - (CFM) 3CFM # Of Stages 1 Voltage 110v / 60Hz Ultimate Vacuum 5 Pa HP 1/4 Oil Capacity 280ml Weight 15LB Intake Connection 1/4" SAE & JIC   Pump Warranty Information Customers using solvents such as stabilization resins (MinWax™, Gator Venom™ etc.), alcohol and other polar solvents must use the vacuum pumps in conjunction with a cold trap for evacuations in excess of 5 minutes. (Excludes Cactus Juice™)  If the consumer is using the pump for prolonged periods of time exceeding 5 minutes we require that a cold trap is used or the pump warranty is void. These stabilization resins have the ability to break down the internal components of the pump that are plastic resulting in a seized motor voiding all warranties. When evacuation exceeds 5 minutes these solvents begin to vaporize and then re-condense in the vacuum pump reservoir. Once enough solvent re-condenses in the pump displacing the oil the plastic internal components may begin to warp, melt or seize. The use of a cold trap will condense the vapors prior to making their way to the vacuum pump preventing pump damage due to excessive use. Furthermore, Minwax Wood Hardener™ is not to be used with any vacuum pumps, EVER. (A seized motor will result within the first use.) To prevent these issues from happening to your process, change the Oil after each vacuum pump use, Even if the use time is only 5min.

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 BVV Value Pump 3cfm 220V ONLY   This is the BVV™ Brand VE115 3CFM Single Stage Vacuum Pump. Single-stage vacuums pump exhaust into a chamber in the pump, which separates the oil from the pumped gas. Then, the oil is returned and the gas is exhausted.  Please refer to these charts for vacuum specifications at altitude and conversions:   Vacuum at Altitude Chart   Vacuum Conversion Chart     Key Features: Internal Check Valve Oil Mist Filter Cap Larger Oil Reservoir for longer Oil life Lightweight Rubber Feet for noise dampening Reliable, Economical and Efficient.   Specification Free Air Displacement - (CFM) 3CFM # Of Stages 1 Voltage 220v Ultimate Vacuum 5 Pa HP 1/4 Oil Capacity 280ml Weight 15LB Intake Connection 1/4" SAE & JIC     Pump Warranty Information Customers using solvents such as stabilization resins (MinWax™, Gator Venom™ etc.), alcohol and other polar solvents must use the vacuum pumps in conjunction with a cold trap for evacuations in excess of 5 minutes. (Excludes Cactus Juice™)  If the consumer is using the pump for prolonged periods of time exceeding 5 minutes we require that a cold trap is used or the pump warranty is void. These stabilization resins have the ability to break down the internal components of the pump that are plastic resulting in a seized motor voiding all warranties. When evacuation exceeds 5 minutes these solvents begin to vaporize and then re-condense in the vacuum pump reservoir. Once enough solvent re-condenses in the pump displacing the oil the plastic internal components may begin to warp, melt or seize. The use of a cold trap will condense the vapors prior to making their way to the vacuum pump preventing pump damage due to excessive use. Furthermore, Minwax Wood Hardener™ is not to be used with any vacuum pumps, EVER. (A seized motor will result within the first use.) To prevent these issues from happening to your process, change the Oil after each vacuum pump use, Even if the use time is only 5min.

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UL Listed BVV™ Pro Series 5.6CFM Two Stage Vacuum Pump (Pump holds a 1 year limited warranty) Features Our Pro series are our most impressive line of rotary vane pumps available. Known for their high degree of efficiency and deep ultimate vacuum, all Pro models feature a dual-stage, chemical-resistant pump configuration designed to handle abusive, extended vacuum evacuations. Capable enough to comfortably handle laboratory and scientific applications, these pumps are also extremely simple in operation and require minimal maintenance. PTFE chemical resistant pump vanes provide superior corrosion resistance and reliability. Large oil reservoir and adjustable gas ballast standard on every model to increase pump oil lifetime. Internal check-valve included in every unit, prevents accidental pump oil backflow. Exhaust oil filter trap included. DEEP ultimate vacuum and KF25 inlet for optimal pumping speed. Lightweight, with noise-dampening rubber feet. Rugged, reliable, economical, and efficient pump designed for day in, day out use. Air cooled, thermally protected motors enclosed in a durable aluminum housing. Gas ballast valve for deeper vacuum. Steel inlet KF25 flange port with multiple intake size. Plastic handle, skid-resistant rubber base. 1 year limited warranty.   Specification Electrical Voltage 120v Frequency 60 Hz Plug NEMA 5-15 US Standard Pump Flowrate 5.6 CFM Configuration 2 Stage Pump Ultimate Vacuum 0.3 Micron Ultimate Vacuum (with ballast) 6 Micron Oil Capacity 1000 ml Recommended Oil Ultragrade 19 Motor Power 1/2 hp Max Speed 1720 RPM Noise Level <56 dB Package Inlet / Exhaust KF25 / NW25 Weight 46 lbs Compliance CE Listed Ships With Exhaust Filter, Pump Oil, User Manual, Power Cable Warranty 1 year   Components Pro Series Pump Components(Included exhaust filter not pictured)     Performance Comparison Pump speed comparison for our Pro Series pumps.     Downloads Maximum Attainable Vacuum at Altitude Reference Chart   Vacuum Units Conversion Chart   Additional Information How do Rotary Vane pumps work? Rotary vane pumps work by having a rotor with two adjusting vanes continuously rotating and exhausting air or any other molecules in the occupied space. The four stages which a rotary vane pump undergo are shown below   Single Stage vs Two Stage Vacuum Pump: BVV™ Pro Series pumps are a dual-stage rotary vane pump style. Dual-stage pumps have two rotors and two sets of vanes that work together to fully pull a medium vacuum (1st stage) and then pull a better vacuum (2nd stage). These pumps will evacuate more quickly and can pull a deeper vacuum when compared to single-stage pumps.   What is Gas Ballast and how does it work? During the pumping process the vacuum pump is trying to evacuate gas present in the occupied space, both non-condensable and condensable gases and vapors. Gas ballast helps increase the percentage of non-condensable vapors such that it will allow for the pump to efficiently exhaust all gases and vapors. This in turn will increase the overall efficiency and pumps life. When the pump is being used with non-condensable gases it's safe to keep the gas ballast valve closed. On the other hand, when there is a condensable gas or vapor present, the gas ballast should be opened appropriately. Gas ballast is used at the beginning of the pumping process when condensable gases are known to be present, then it's closed to finish pulling the deepest vacuum.   For more info on rotary vane pumps please view our blog post: Rotary Vane Pumps and Gas Ballast Explained.   Pump Warranty Information Customers using solvents such as stabilization resins (MinWax™, Gator Venom™ etc.), alcohol and other polar solvents must use the vacuum pumps in conjunction with a cold trap for evacuations in excess of 5 minutes. (Excludes Cactus Juice™) If the consumer is using the pump for prolonged periods of time exceeding 5 minutes we require that a cold trap is used or the pump warranty is void. These stabilization resins have the ability to break down the internal components of the pump that are plastic resulting in a seized motor voiding all warranties. When evacuation exceeds 5 minutes these solvents begin to vaporize and then re-condense in the vacuum pump reservoir. Once enough solvent re-condenses in the pump displacing the oil the plastic internal components may begin to warp, melt or seize. The use of a cold trap will condense the vapors prior to making their way to the vacuum pump preventing pump damage due to excessive use. Furthermore, Minwax Wood Hardener™ is not to be used with any vacuum pumps, EVER. (A seized motor will result within the first use.) To prevent these issues from happening to your process, change the Oil after each vacuum pump use, Even if the use time is only 5min.

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UL Listed BVV™ Pro Series 11.3CFM Two Stage Vacuum Pump (Pump holds a 1 year limited warranty) This is the BVV™ Brand 11.3CFM Two Stage Pro Series vacuum pump. The BVV™ Pro Series 11.3CFM will pull a vacuum down to 0.3 microns effortlessly. The pump is designed with corrosion resistance and long-term continuous operation in mind. Comes standard with K-25 fittings, clamps, centering rings and oil mist exhaust filter which returns trapped oil back to the pump and allows for quieter operation. Adjustable gas ballast keeps moisture, solvent, and other contaminants from getting stuck in the pump. Please Refer to these charts for vacuum specifications at altitude and conversions: Vacuum at Altitude Chart   Vacuum Conversion Chart   Specifications Electrical Requirements: 110v 60Hz 750 Watts Pumping Rate: 11.3CFM Ultimate vacuum without gas ballast: 0.3 micron Ultimate vacuum with gas ballast: 6 micron Inlet/Outlet connection: KF25/NW25 Flange Oil Volume: 1.5L/1.59 quarts Motor Rate: 1720 RPM Working Temperature: 5C to 40C Unit Dimensions: 21 x 7.5 x 12 Shipping Dimensions: 29.5 x 9.5 x 16.5 Unit Weight: 66lbs Shipping Weight: 75lbs Recommended oil: Ultragrade 19 Noise level: <58 dB CE Compliance: Yes Warranty: 1 year limited warranty     Pump Warranty Information Customers using solvents such as stabilization resins (MinWax™, Gator Venom™ etc.), alcohol and other polar solvents must use the vacuum pumps in conjunction with a cold trap for evacuations in excess of 5 minutes. (Excludes Cactus Juice™) If the consumer is using the pump for prolonged periods of time exceeding 5 minutes we require that a cold trap is used or the pump warranty is void. These stabilization resins have the ability to break down the internal components of the pump that are plastic resulting in a seized motor voiding all warranties. When evacuation exceeds 5 minutes these solvents begin to vaporize and then re-condense in the vacuum pump reservoir. Once enough solvent re-condenses in the pump displacing the oil the plastic internal components may begin to warp, melt or seize. The use of a cold trap will condense the vapors prior to making their way to the vacuum pump preventing pump damage due to excessive use. Furthermore, Minwax Wood Hardener™ is not to be used with any vacuum pumps, EVER. (A seized motor will result in the first use.) To prevent these issues from happening to your process, change the Oil after each vacuum pump use, Even if the use time is only 5min.

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UL Listed BVV™ Pro Series 21.2CFM Two Stage Vacuum Pump (Pump holds a 1 year limited warranty) This is the BVV™ Brand 21.2CFM Two Stage Pro Series vacuum pump. The BVV™ Pro Series 21.2CFM will pull a vacuum down to 0.3 microns effortlessly. The pump is designed with corrosion resistance and long-term continuous operation in mind. Comes standard with K-25 fittings, clamps, centering rings and oil mist exhaust filter which returns trapped oil back to the pump and allows for quieter operation. Adjustable gas ballast keeps moisture, solvent, and other contaminants from getting stuck in the pump. Please Refer to these charts for vacuum specifications at altitude and conversions: Vacuum at Altitude Chart   Vacuum Conversion Chart   Specifications Electrical Requirements: 110v 60Hz 1100 Watts Pumping Rate: 21.2CFM Ultimate vacuum without gas ballast: 0.3 micron Ultimate vacuum with gas ballast: 6 micron Inlet/Outlet connection: KF25/NW25 Flange Oil Volume: 2L/2.1 quarts Motor Rate: 1720 RPM Working Temperature: 5C to 40C Unit Dimensions: 21 x 7.5 x 12 Shipping Dimensions: 29.5 x 9.5 x 16.5 Unit Weight: 95lbs Shipping Weight: 105lbs Recommended oil: Ultragrade 19 Noise level: <58 dB CE Compliance: Yes Warranty: 1 year limited warranty     Pump Warranty Information Customers using solvents such as stabilization resins (MinWax™, Gator Venom™ etc.), alcohol and other polar solvents must use the vacuum pumps in conjunction with a cold trap for evacuations in excess of 5 minutes. (Excludes Cactus Juice™) If the consumer is using the pump for prolonged periods of time exceeding 5 minutes we require that a cold trap is used or the pump warranty is void. These stabilization resins have the ability to break down the internal components of the pump that are plastic resulting in a seized motor voiding all warranties. When evacuation exceeds 5 minutes these solvents begin to vaporize and then re-condense in the vacuum pump reservoir. Once enough solvent re-condenses in the pump displacing the oil the plastic internal components may begin to warp, melt or seize. The use of a cold trap will condense the vapors prior to making their way to the vacuum pump preventing pump damage due to excessive use. Furthermore, Minwax Wood Hardener™ is not to be used with any vacuum pumps, EVER. (A seized motor will result in the first use.) To prevent these issues from happening to your process, change the Oil after each vacuum pump use, Even if the use time is only 5min.

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 BVV™ Brand 14.1CFM Two Stage Pro Series This is the BVV™ Brand 14.1CFM Two Stage Pro Series vacuum pump. The BVV™ Pro Series 14.1CFM will pull a vacuum down to 0.5 micron effortlessly. The pump is designed with corrosion resistance and long term continuous operation in mind. Comes standard with K-25 fittings, clamps, centering rings and oil mist exhaust filter which returns trapped oil back to the pump and allows for quieter operation. Adjustable gas ballast keeps moisture, solvent, and other contaminants from getting stuck in the pump.   Compare to Cacejen or Xeno brand rotary vane vacuum pumps. Please Refer to these charts for vacuum specifications at altitude and conversions: Vacuum at Altitude Chart   Vacuum Conversion Chart   Specifications Electrical Requirements: 115v 60Hz Pumping Rate: 14.1CFM Ultimate vacuum without gas ballast: 0.5 micron Inlet/Outlet connection: KF25/NW25 Flange Oil Volume: 2L/2.1 quarts Motor Rate: 1720 RPM Working Temperature: 5C to 40C Unit Weight: 38KG / 84lbs Recommended oil: Ultragrade 19 CE Compliance: Yes Warranty 2 year limited warranty Pump Warranty Information Customers using solvents such as stabilization resins (MinWax™, Gator Venom™ etc.), alcohol and other polar solvents must use the vacuum pumps in conjunction with a cold trap for evacuations in excess of 5 minutes. (Excludes Cactus Juice™) If the consumer is using the pump for prolonged periods of time exceeding 5 minutes we require that a cold trap is used or the pump warranty is void. These stabilization resins have the ability to break down the internal components of the pump that are plastic resulting in a seized motor voiding all warranties. When evacuation exceeds 5 minutes these solvents begin to vaporize and then re-condense in the vacuum pump reservoir. Once enough solvent re-condenses in the pump displacing the oil the plastic internal components may begin to warp, melt or seize. The use of a cold trap will condense the vapors prior to making their way to the vacuum pump preventing pump damage due to excessive use. Furthermore, Minwax Wood Hardener™ is not to be used with any vacuum pumps, EVER. (A seized motor will result within the first use.) To prevent these issues from happening to your process, change the Oil after each vacuum pump use, Even if the use time is only 5min.

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BVV™  Pro Series  21.2CFM Corrosion Resistant Two Stage Vacuum Pump   This is the BVV™ Brand 21.2CFM Two Stage Pro Series vacuum pump. The BVV™ Pro Series 21.2CFM will pull a vacuum down to 0.5mtorr micron effortlessly. The pump is designed with corrosion resistance and long term continuous operation in mind. Comes standard with K-25 fittings, clamps, centering rings and oil mist exhaust filter which returns trapped oil back to the pump and allows for quieter operation. Adjustable gas ballast keeps moisture, solvent, and other contaminants from getting stuck in the pump. Please Refer to these charts for vacuum specifications at altitude and conversions: Vacuum at Altitude Chart   Vacuum Conversion Chart   Specifications Electrical Requirements: 115v 60Hz Pumping Rate: 21.2CFM Ultimate vacuum without gas ballast: 0.5mtorr Inlet/Outlet connection: KF25/NW25 Flange Oil Volume: 2.3L/2.4 quarts Working Temperature: 5C to 40C Unit Weight: 41KG / 90lbs Recommended oil: Ultragrade 19 CE Compliance: yes Warranty: 2 year limited warranty Pump Warranty Information Customers using solvents such as stabilization resins (MinWax™, Gator Venom™ etc.), alcohol and other polar solvents must use the vacuum pumps in conjunction with a cold trap for evacuations in excess of 5 minutes. (Excludes Cactus Juice™) If the consumer is using the pump for prolonged periods of time exceeding 5 minutes we require that a cold trap is used or the pump warranty is void. These stabilization resins have the ability to break down the internal components of the pump that are plastic resulting in a seized motor voiding all warranties. When evacuation exceeds 5 minutes these solvents begin to vaporize and then re-condense in the vacuum pump reservoir. Once enough solvent re-condenses in the pump displacing the oil the plastic internal components may begin to warp, melt or seize. The use of a cold trap will condense the vapors prior to making their way to the vacuum pump preventing pump damage due to excessive use. Furthermore, Minwax Wood Hardener™ is not to be used with any vacuum pumps, EVER. (A seized motor will result within the first use.) To prevent these issues from happening to your process, change the Oil after each vacuum pump use, Even if the use time is only 5min.

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Water Circulation Vacuum Pump This Circulation and Vacuum Pump combines the best of both worlds by using the circulating water to pull a vacuum which requires no oil at all and has very low maintenance requirements overall due to this unique process and design. Each vacuum port on the unit pulls vacuum separately from one another so the user can use it for different applications at the same time or combined to increase the vacuum. This pump will also circulate water through the backports as needed to cool and application and dissipate heat as needed. Specifications Vacuum Degree 0.0980Mpa (735 Torr) @ 25°C Single Tap Exhaustion 10L/min Voltage 110V / 50Hz USA Plug Noise <50DB     Specifications Number of Vacuum ports: 2qty (independent vacuum po Vacuum Port Size: 3/8" Vacuum Depth: 16 torr Number or Water Circulation inlet: 1qty Number or Water Circulation Outlet: 1qty Pumping Speed: 6.5 L/min Reservoir Capacity: 12L Overall Dimensions: 15.5" x 11.5" x 17" Decibel: 62 dB Weight (no water): 17lbs 10oz

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Welch CRVpro Direct Drive Rotary Vane Vacuum Pump CRVpro4 ***Note: This item has a possible 1-2 week lead time depending on stock availability*** Product Details The new CRVpro family of direct drive vacuum pumps offers increased reliability and longer service interval vs. other direct drive rotary vane vacuum pumps. The CRVpro family consumes up to 36% less oil than comparable pumps. Three features drive these benefits:  Runs 10°C cooler than comparable pumps. Slows corrosion.  Has a 40% larger oil capacity than comparable pumps. Dilutes aggressive chemicals.  Has a chemical resistant coating in the oil case and pump module. Protects non-moving parts.  The CRVpro family includes all the features you'd expect in a direct drive rotary vane pump: gas ballast, forced oil lubrication, anti-suckback mechanism and thermal overload protection.  Suitable applications include freeze drying, degassing, vacuum ovens and concentrators. 3041-01 is wired for North American 115V, 60Hz operation. Includes North American line cord, vacuum inlet hose barb suitable for gum rubber hose from 5/8" to 3/4" ID, and a charge of oil.  3042-01 is wired for North American 230V, 60Hz operation. Includes 230V North American line cord, UK cord, and skuko cord, and a charge of oil.  3046E-01 comes with an explosion proof motor. Conduit wiring installation required. No cord, plug, or switch provided.  Direct drive pumps are not recommended for filtration, aspiration, drying electrophoresis gels, or other applications requiring sustained operation above 30 torr.    Specifications  Applications CRVpro4 Free Air Displacement @ 60 Hz, cfm (L/min) 2.8 (78) Free Air Displacement @ 50 Hz, m³/hr (L/min) 4 (67) Ultimate Pressure, torr (mbar) 5x10⁻⁴ (4x10⁻⁴) Noise Level, dBA 50 Motor Speed, RPM, @60Hz, @50Hz 1740 (1450) 1750 (1450) Motor Power, HP (kW) 0.4 (0.5) Oil Capacity, mL 1150 Connection Flanges NW 16 Inlet Hose Connection* 5/8" to 3/4" Weight, lbs (kg) 46.3 (21) Dimensions, LxWxH, in (mm) 18.2x6.1x9.1 (463x157x230)

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Welch Explosion Proof  CRVpro4 Direct Drive Rotary Vane Vacuum Pump  ***Note: This item has a possible 1-2 week lead time depending on stock availability*** Product Details Explosion Proof Motor 110-120V/208-240V 60Hz 1 Phase The new CRVpro family of direct drive vacuum pumps offers increased reliability and longer service interval vs. other direct drive rotary vane vacuum pumps. The CRVpro family consumes up to 36% less oil than comparable pumps. Three features drive these benefits:  Runs 10°C cooler than comparable pumps. Slows corrosion.  Has a 40% larger oil capacity than comparable pumps. Dilutes aggressive chemicals.  Has a chemical resistant coating in the oil case and pump module. Protects non-moving parts.  The CRVpro family includes all the features you'd expect in a direct drive rotary vane pump: gas ballast, forced oil lubrication, anti-suckback mechanism and thermal overload protection.  Suitable applications include freeze drying, degassing, vacuum ovens and concentrators.   3046E-01 comes with an explosion proof motor. Conduit wiring installation required. No cord, plug, or switch provided.  Direct drive pumps are not recommended for filtration, aspiration, drying electrophoresis gels, or other applications requiring sustained operation above 30 torr.   Specifications Application CRVpro4 Free Air Displacement @ 60 Hz, cfm (L/min) 2.8 (78) Free Air Displacement @ 50 Hz, m³/hr (L/min) 4 (67) Ultimate Pressure, torr (mbar) 5x10⁻⁴ (4x10⁻⁴) Noise Level, dBA 50 Motor Speed, RPM, @60Hz, @50Hz 1740 (1450) Motor Power, HP (kW) 0.4 (0.5) Oil Capacity, mL 1150 Connection Flanges NW 16 Inlet Hose Connection* 5/8" to 3/4" Weight, lbs (kg) 46.3 (21) Dimensions, LxWxH, in (mm) 18.2x6.1x9.1 (463x157x230)

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Welch CRVpro Direct Drive Rotary Vane Vacuum Pump CRVpro6 ***Note: This item has a possible 1-2 week lead time depending on stock availability*** Product Details The new CRVpro family of direct drive vacuum pumps offers increased reliability and longer service interval vs. other direct drive rotary vane vacuum pumps. The CRVpro family consumes up to 36% less oil than comparable pumps. Three features drive these benefits:  Runs 10°C cooler than comparable pumps. Slows corrosion.  Has a 40% larger oil capacity than comparable pumps. Dilutes aggressive chemicals.  Has a chemical resistant coating in the oil case and pump module. Protects non-moving parts.  The CRVpro family includes all the features you'd expect in a direct drive rotary vane pump: gas ballast, forced oil lubrication, anti-suckback mechanism and thermal overload protection.  Suitable applications include freeze drying, degassing, vacuum ovens and concentrators. 3061-01 is wired for North American 115V, 60Hz operation. Includes North American line cord, vacuum inlet hose barb suitable for gum rubber hose from 5/8" to 3/4" ID, and a charge of oil.  3062-01 is wired for North American 230V, 60Hz operation. Includes 230V North American line cord, UK cord, and skuko cord, and a charge of oil.  Direct drive pumps are not recommended for filtration, aspiration, drying electrophoresis gels, or other applications requiring sustained operation above 30 torr.

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Welch CRVpro Direct Drive Rotary Vane Vacuum Pump CRVpro8 ***Note: This item has a possible 1-2 week lead time depending on stock availability***   Product Details The new CRVpro family of direct drive vacuum pumps offers increased reliability and longer service interval vs. other direct drive rotary vane vacuum pumps. The CRVpro family consumes up to 36% less oil than comparable pumps. Three features drive these benefits:  Runs 10°C cooler than comparable pumps. Slows corrosion.  Has a 40% larger oil capacity than comparable pumps. Dilutes aggressive chemicals.  Has a chemical resistant coating in the oil case and pump module. Protects non-moving parts.  The CRVpro family includes all the features you'd expect in a direct drive rotary vane pump: gas ballast, forced oil lubrication, anti-suckback mechanism and thermal overload protection.  Suitable applications include freeze drying, degassing, vacuum ovens and concentrators. 3081-01 is wired for North American 115V, 60Hz operation. Includes North American line cord, vacuum inlet hose barb suitable for gum rubber hose from 5/8" to 3/4" ID, and a charge of oil.  3082-01 is wired for North American 230V, 60Hz operation. Includes 230V North American line cord, UK cord, and skuko cord, and a charge of oil.  Direct drive pumps are not recommended for filtration, aspiration, drying electrophoresis gels, or other applications requiring sustained operation above 30 torr   Specifications Application CRVpro8 Free Air Displacement @ 60 Hz, cfm (L/min) 5.6 (158) Free Air Displacement @ 50 Hz, m³/hr (L/min) 8 (133) Ultimate Pressure, torr (mbar) 5x10⁻⁴ (4x10⁻⁴) Noise Level, dBA 50 Motor Speed, RPM, @60Hz, @50Hz 1740 (1450) Motor Power, HP (kW) 0.4 (0.5) Oil Capacity, mL 1000 Connection Flanges NW 16 Inlet Hose Connection* 5/8" to 3/4" Weight, lbs (kg) 49.6 (22.5) Dimensions, LxWxH, in (mm) 18.2x6.1x9.1 (463x157x230)

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The Welch 1400 DuoSeal is an ideal choice for short path distillation and other general laboratory applications due to it's extremely low vacuum capabilites. DuoSeal Vacuum Pumps are known for their ruggedness world-wide. These pumps have large oil reservoirs to dilute contaminants. Low pump rpm to reduce friction and wear while minimizing reservoir temperature to lessen chemical reactivity. Pump can be ordered with an optional exhaust filter to control oil mist. Key Features: High contamination tolerance Ultimate vacuum <0.001 Torr Low RPM for long service life Specifications: Applications: Vacuum Manifolds, Schlenk Lines, High boiling point evaporations, Glove boxes, General laboratory use Type: Belt-Drive Vacuum Pump Free Air Displacement cfm (l/min.) @60Hz: 0.9(25) Ultimate Pressure: 1 x 10-4(0.00013) Pump RPM: 580 Oil Capacity: 0.62(0.59) Motor Horespower (watts): 1/3(250) Adjustable Vac. / Gas Ballast: Yes Tubing Needed: 7/16(11) Intake Thread: 3/4-20 Exhaust Thread: 3/4-20 Overall Dimensions LxWxH in. (cm): 17.8x9x12.6 (45.1x32.1x31.8) Ship Weight: 70(31.8) Shipping Carton Dimensions: LxWxH in. (cm): 20.5x13.8x14.5 (52.1x35.1x36.8)  

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  Edwards E2M28 21 CFM Dual-Stage High Capacity Vacuum Pump ***Note: This item Will Ship by Freight only***   The EM range of oil‑sealed rotary pumps – renowned for their high ultimate vacuum, rapid pumping speed, quiet operation and ability to handle vapor – have become the industry standard for laboratory and light industrial applications. The pump is a freestanding unit with the drive provided through a flexible coupling by either a single‑phase or three‑phase (four pole) air cooled motor.Each EM pump is supplied with 2 x 1 liter of Ultragrade 19 oil, O ring and centering ring, two Allen keys and spares seal for oil drain and filter plugs. For PFPE prepared FX pumps Fomblin® to be ordered separately.   Technology  The motor is totally enclosed and is cooled by the motor-cooling fan which directs air along the motor fins. The motors are fitted with a thermal overload device. When the motor is too hot, the thermal overload device switches off the pump. The thermal overload device has an automatic reset; when the motor cools down, the device resets and the motor will restart.An oil pressure system lubricates the pump shaft bearing surfaces and rotor sealing faces. The pump has an oil distribution valve which prevents discharge of oil to the pump interior after the pump stops. The pumping chambers are air-tight, so this arrangement also prevents suckback unless the gas ballast valve is open.You can inspect the level and condition of oil in the oil box reservoir through the oil sight-glass. An oil filler-plug is fitted to the top of the oil box. The pump has two oil drain-plugs to allow either gravity oil drain or pressure oil drain.   Features and Benefits  The pump is designed for reliable, long‑term operation. Thermal overload device prevents overheating (single phase only). The drive is provided through a flexible coupling by a single‑phase or three‑phase (four pole) motor. The motors are totally enclosed and are cooled by the motor cooling fan. Full height O ring sealed oil sight glass for easy checking of oil level and condition. Large sight glass and operating oil range. IE3 energy efficient 3 phase motor used with E2M28.   Edwards E2M28 21 CFM Dual-Stage High Capacity Vacuum Pump. The EM range of oil-sealed rotary pumps - renowned for its high ultimate vacuum, rapid pumping speed, quiet operation and ability to handle vapour - has become the industry standard laboratory and light industrial applications. The E2M28 pump is a two-stage, direct drive, sliding vane pump. The pump is oil sealed and designed for reliable, long-term operation in both laboratory and industrial environments. The pump is a freestanding unit with the drive provided through a flexible coupling by either a single-phase or three-phase (four-pole) motor.     Specifications Displacement 50Hz 32.2 m3h-1 / 19 ft3min-1 60Hz 38.9 m3h-1 / 22.3 ft3min-1 Speed (Pneurop 6602) 50Hz 27.5 m3h-1 / 16.2 ft3min-1 60Hz 33.0 m3h-1 / 19.5 ft3min-1 Ultimate vacuum (total pressure) without gas ballast 1 x 10-3 mbar / 7.5 x 10-4 Torr with gas ballast 1.5 x 10-2 mbar / 1.1 x 10-2 Torr with Fomblin® 1 x 10-2 mbar / 7.5 x 10-3 Torr Inlet connection NW25 flange Outlet connection** Nozzle 15 mm external Ø removable from 3/4 in BSP tapped hole Max allowed pressure at outlet 0.5 bar gauge / 7 psig Max water vapour pumping rate – GB II 220 gh-1 Max inlet pressure for water vapour 30 mbar / 23 Torr Max water vapour pumping rate 0.7 kg h-1 Operating temperature range 13 – 40 °C Nominal rotation speed 1440 / 1720 rpm Motor power 50 Hz 0.75 kW Motor power 60 Hz 0.90 kW Power Connector 1-ph* IEC EN60320 C19 Weight 44 kg / 97 lbs Noise 57 dB(A) @ 50 Hz Oil capacity - max 1.5 litre Oil capacity - min 1.2 litre Recommended oil (supplied) Ultragrade 19     * Pumps listed with IEC connector only ** The FX are supplied with NW25 outlet connection    ** POWER CORD NOT INCLUDED. RECOMMEND FOR CUSTOMER TO WIRE PUMP TO OUTLET WITH EXACT LENGTH. DO NOT USE EXTENSIONS**   **RECOMMEND FOR CUSTOMER TO HAVE ELECTRICIAN WIRE PUMP TO OUTLET WITH EXACT LENGTH**       Pump Warranty Information Customers using solvents such as stabilization resins (MinWax™, Gator Venom™ etc.), alcohol and other polar solvents must use the vacuum pumps in conjunction with a cold trap for evacuations in excess of 5 minutes. (Excludes Cactus Juice™) If the consumer is using the pump for prolonged periods of time exceeding 5 minutes we require that a cold trap is used or the pump warranty is void. These stabilization resins have the ability to break down the internal components of the pump that are plastic resulting in a seized motor voiding all warranties.  When evacuation exceeds 5 minutes these solvents begin to vaporize and then re-condense in the vacuum pump reservoir. Once enough solvent re-condenses in the pump displacing the oil the plastic internal components may begin to warp, melt or seize. The use of a cold trap will condense the vapors prior to making their way to the vacuum pump preventing pump damage due to excessive use. Furthermore, Minwax Wood Hardener™ is not to be used with any vacuum pumps, EVER. (A seized motor will result within the first use.) To prevent these issues from happening to your process, change the Oil after each vacuum pump use, Even if the use time is only 5min.

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Harvest Right Premier Vacuum Pump Technical Specifications Oil: Robinair Premium High Vacuum Pump Oil or JB Industries Black Gold Vacuum Pump Oil Only DC Motor Energy Efficient Voltage: Standard, 110v, 60Hz Dimensions: 16.3″ x 6″ x 12.1″ Weight: 32lbs Noise: 52 decibels     Product Comparison: Premier Oil Pump vs Standard Oil Pump Oil Changes: This new Premier Pump rarely needs to have the oil changed or filtered. The pump has a gas ballast feature that makes it so water does not stay in the oil. Because of this, the oil in the pump will be pristine and clear, even after 30 or more batches. You simply won’t need to change the oil until you have run 20 or more batches. Whereas, the oil in the Standard Vacuum Pump needs to be changed and filtered every 4 or 5 batches (when using the new 3/8 inch vacuum hose). You should only replace the oil in this pump with Robinair Premium High Vacuum Pump Oil (or with JB Industries Black Gold Vacuum Pump Oil). These may be purchased from Harvest Right, Amazon, and other locations. Do not use Dairyland vacuum pump oil in the Premier pump. Vacuum Pressure: Under cold and hot conditions the Premier Pump will pull a deeper vacuum than the Standard Pump. Under cold conditions the difference is .05 Pascal for the Premier Pump and .08 Pascal for the Standard Pump. Whereas, under warm conditions the difference is much greater: .05 Pascal for the Premier Pump and 2.05 Pascal for the Standard Pump.Hence, the Premier Pump is especially not affected by warm, ambient conditions. When temperatures rise, it will pull a vacuum far better than the Standard Pump. The Premier Pump is just not affected by outside heat. It pulls the same deep vacuum even when it is in a warm environment. Noise: The Premier Pump is substantially quieter than the Standard Pump, 52 decibels versus 64 decibels. The Industrial Pump at 52 decibels is about the same as a refrigerator. Oil Mist Filter: Both pumps come with an oil mist filter. However, the Premier Pump’s oil mist filter allows for no oil spray at all and it will last much longer. Power Use: The Premier Pump uses less power than the Standard Pump (187 watts versus 218 watts). Amperage: Under hot conditions at ultimate vacuum pressure the Standard Pump pulls 2.1 amps while the Premier Pump only pulls 1.7 amps. Hence, the Premier Pump is more efficient. Weight: The Premier Pump is easier to move around as it weighs 5 pounds less than the Standard Pump (32 lbs. versus 37 lbs.) Life: The Premier Pump is more durable and will last longer than the Standard Pump.

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Vacuubrand MD 4C NT 2.2 CFM Chemistry Diaphragm Pump 110V   MD 4C NT Technical Data Sheet.pdf  These three-stage diaphragm pumps are an excellent solution for continuous, oil-free pumping of non-corrosive gases. They reach an excellent ultimate vacuum of 1 mbar. All parts in contact with pumped gases and vapors are made of aluminum, stainless steel and carefully selected plastics suitable for a wide range of applications with non-corrosive gases. The new NT-series provides whisper quiet and ultra-low vibration operation, high leak tightness and improved performance. The highly flexible fabric-reinforced double diaphragm made of FKM is ideal for extended operating life. These three-stage diaphragm pumps are an excellent choice for continuous, contamination-free evacuation and pumping of non-aggressive gases at demanding vacuum conditions. They are especially suitable for applications in physics and analytics. The low ultimate vacuum makes these an attractive alternative to rotary vane pumps in many applications. Typical uses are as backing pump for turbomolecular drag pumps, and for degassing of viscous media.   Performance features: Outstanding chemical resistance and superior vapor tolerance Exceptionally high performance even at low vacuum Excellent ultimate vacuum even with gas ballast Whisper quiet and very low vibration Long diaphragm life, maintenance-free drive system     Technical Data Max. pumping speed 50 Hz 3.8 m3/h Max. pumping speed 60 Hz 2.5 cfm Ultimate vacuum 1 mbar / 0.75 torr Number of heads 4 Number of stages 3 Lower ambient temperature (operation) 10 °C Upper ambient temperature (operation) 40 °C Lower ambient temperature (storage) -10 °C Upper ambient temperature (storage) 60 °C Max. back pressure (abs.) 1.1 bar Anschluss saugseitig small flange KF DN 16 Outlet connection Silencer / G1/4" Rated motor power 0.25 kW Rated motor speed at 50/60 Hz 1500/1800 min-1 Protection class IP 40 Dimension L in mm 328 mm Dimension W in mm 239 mm Dimension H in mm 198 mm Weight 16.4 kg Noise level at 50 Hz, typ. 45 dBA Rated mains voltage range 1 230 V Mains frequency 1 50-60 Hz   NRTL certification    

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 Vacuubrand MZ 2C NT 1.4 CFM Chemistry Diaphragm Pump 110V   MZ 2C NT Technical Data Sheet.pdf Chemistry-design diaphragm pumps are an excellent solution for continuous, oil-free pumping of corrosive gases and vapors. The two-stage construction provides the advantageous combination of high pumping speed and low ultimate vacuum. All parts in contact with pumped media are made of chemically resistant fluoroplastics. Well-proven PTFE sandwich diaphragms increase reliability and extend operating life. The pump MZ 2C NT is equipped with a gas ballast valve for continuous condensate purge increasing the pumping capability of condensable vapors. This pump is our most popular chemistry diaphragm pump, and is the heart of a family of VACUUBRAND pumping systems. The NT-series features further improved performance data and superior vapor tolerance.     Technical data Unit MZ 2C NT Number of heads / stages 2 / 2 Max. pumping speed at 50/60 Hz m3/h 2.0 / 2.3 Max. pumping speed at 50/60 Hz cfm 1.2 / 1.4 Ultimate vacuum (abs.) mbar/torr 7 / 5 Ultim. vac. (abs.) with gas ballast mbar/torr 12 / 9 Ambient temperature range (operation) °C 10 - 40 Ambient temperature range (storage) °C -10 - 60 Max. back pressure (abs.) bar 1.1 Inlet connection Hose nozzle DN 8-10 mm Outlet connection Hose nozzle DN 8-10 mm Rated motor power kW 0.18 Rated motor speed at 50/60 Hz min-1 1500/1800 Degree of protection IP 40 Dimensions (L x W x H) mm 243 x 243 x 198 Weight kg 11.1 Noise level at 50 Hz, typ. dBA 45 NRTL certification Canada and the USA ATEX conformity (only 230V) II 3/- G IIC T3 X Internal Atm. only Items supplied Pump completely mounted, ready for use, with manual. Accessories Rubber vacuum tubing DN 8 mm (20686001)

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  Refurbished Vacuubrand VARIO® chemistry pumping unit PC 3001 VARIOpro   The PC 3001 VARIO select pumping unit precisely controls the vacuum level in order to achieve unparalleled process control. This pump is suitable for even high boiling point solvents. The integrated VACUU·SELECT controller provides an easy-to-use, application based interface that covers all common lab applications. The VACUU·SELECT controller has you covered. Use manual set-point-control for simple processes, run fully automated distillations, or create your own application with simple drag-and-drop editing. For solvent evaporation, the VACUU·SELECT controller detects solvent boiling and automatically adjusts the pump's motor speed to maintain process control. The VARIO motor speed control also makes the pump whisper quiet and provides for exceptionally long maintenance intervals. The inlet separator, made of glass with a robust protective coating, prevents particles and liquid droplets from entering the pump, preventing damage and extending pump life. And the exhaust vapor condenser allows for nearly complete recovery of solvents when used with a chilled water line or recirculating chiller for economical recycling and environmental protection.   Performance features simplify lab work with the VACUU·SELECT vacuum controller with graphic user interface and predefined applications automatic boiling point detection and continuous optimization of vacuum levels for quick process times compact and powerful; superior performance even with continuous condensate purge whisper quiet and ultra low vibration eco-friendly: extremely low power consumption and efficient solvent recovery. Oil-free!     CE Approval  Safety Information Manual Controller Manual  Manual interfaces       Technical data Unit PC 3001 VARIO select Vacuum controller VACUU·SELECT Number of heads / stages 4 / 3 Max. pumping speed m3/h 2.0 Max. pumping speed cfm 1.2 Ultimate vacuum (abs.) mbar/torr 2.0 / 1.5 Ultim. vac. (abs.) with gas ballast mbar/torr 4 / 3 Ambient temperature range (operation) °C 10 - 40 Ambient temperature range (storage) °C -10 - 60 Max. back pressure (abs.) bar 1.1 Inlet connection Hose nozzle DN 6-10 mm Outlet connection Hose nozzle DN 8-10 mm Coolant connection 2 x hose nozzle DN 6-8 mm Rated motor power kW 0.16 Motor speed range min-1 200 - 3000 Protection class IP 20 Dimensions (L x W x H) mm 303 x 306 x 400 Weight kg 8.2 Noise level at 50 Hz, typ. dBA 42 ATEX conformity (only 230V) II 3/- G IIC T3 X Internal Atm. only Items supplied Pumping unit completely mounted, ready for use, with manual. Accessories Rubber vacuum tubing DN 6 mm (20686000) Rubber vacuum tubing DN 8 mm (20686001) Coolant valve VKW-B (20674220) Vent valve VB M-B (20674217) Liquid level sensor (20699908) VACUU·BUS® Y-Adapter mit Kabel 2m (20683240)

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Edwards RV3 2.6 CFM Dual-Stage KF25 Vacuum Pump Free KF25 flexible stainless steel bellow (3.3 ft), clamps and centering rings set ($219 value) included for immediately use (mist filter NOT included). Technical support and one year warranty covered by Edwards. https://shop.edwardsvacuum.com/products/a65201903/view.aspx Overview The Edwards RV series of small oil sealed rotary vane pumps deliver excellent ultimate vacuum pressure, high pumping speeds and superior vapour handling capabilities with quiet operation. With 400,000  units produced, these pumps offer proven performance that sets the industry standard for R&D and scientific pumping applications. Technology All our RV pumps are quiet.  Noise levels of 48 dBA 50Hz have been achieved by extensive work on the pump design,  drive train and motor.The pumps have the unique ability to deliver excellent ultimate vacuum in both high vacuum and high throughput modes with or without gas ballast. This gives the user an unrivalled opportunity to select the optimum pumping performance without compromising the application.The simple to use mode selector and accessible, three-position gas ballast control allow the pump to be reconfigured at any time, even when the pump is running.In high vacuum mode, the RV pump is ideal for analytical instruments, electron microscopes, physics research, backing turbo pumps and leak detection applications. Configure the same pump in the high throughput mode, and it becomes suitable for distillation, laboratory furnaces, backing vapor pumps, solvent concentration, freeze drying and other drying applications. Features High reliability – generous lubrication of moving parts. Safe process and systems – fast acting inlet valve for best in class anti‑suck back protection. Configured to meet your vacuum needs – mode selector and three position gas ballast No unplanned downtime – designed for easy maintenance. Better work environment – quiet running and intrusive frequencies minimised. Three position gas ballast allows either 60 g/hr or a class leading 220 g/hr (290 g/hr on RV12) of water vapour to be handled. Universal motor to cover the widest possible voltage and frequency range from a single variant. Smooth controlled inlet valve opening by oil pressure to eliminate pressure surges. Rapid closing inlet valve within 0.4 seconds of pump stopping. Applications Analytical instruments Centrifuges, ultra-high speed Coating Degassing/curing - oil, epoxy resin Distillation/extraction/filtration Freeze drying Furnaces Gas bottle filling/emptying Gel drying Glove boxes, ovens Laboratory bench top vacuum Leak detectors, Helium Load locks and transfer chambers Refrigeration manufacture Research and development Rotary, centirfugal evaporators Scanning electron microscopes - SEM SEM/FIB (ion beam repair) Solvent recovery Surface science instruments Turbomolecuar backing pumps  

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Edwards RV8 6.9 CFM Dual-Stage Vacuum Pump Edwards RV pumps have become the industry standard for scientific primary pumping applications. RV pumps are uniquely capable of delivering high or low throughputs with high ultimate vacuum. This, combined with ultra-low noise levels, makes them ideal for a wide range of applications including GCMS and other small bench top type applications.All pumps are approved to UL standards by an external test house. Edwards has a global network, providing world-wide support for product applications and service.Supplied with: 1 litre of Ultragrade 19 oil, inlet filter and O-ring. Fomblin must be purchased separately for PFPE RV pumps. Technology All our RV pumps are significantly quieter noise levels of 48 dBA 50Hz are typically half the noise of a conventional pump and have been achieved by extensive work on the drive train and motor. The pumps have the unique ability to deliver excellent ultimate vacuum in both high vacuum and high throughput modes with or without gas ballast. This gives the user an unrivalled opportunity to select the optimum pumping performance without compromising the application. In its high vacuum mode, the RV pump is ideal for analytical instruments, electron microscopes, physics research, backing turbo pumps, TV tube pumping and leak detection applications. Configure the same pump in the high throughput mode, and it becomes suitable for mass spectrometer inlet systems, distillation, laboratory furnaces, backing vapor pumps, solvent concentration, freeze drying and other drying applications. The simple to use mode selector and accessible, three-position gas ballast control allow the pump to be reconfigured at any time, even when the pump is running.   Applications Analytical instruments Centrifuges, ultra-high speed Coating Degassing/curing - oil, epoxy resin Distillation/extraction/filtration Freeze drying Furnaces Gas bottle filling/emptying Gel drying Glove boxes, ovens Laboratory bench top vacuum Leak detectors, Helium Load locks and transfer chambers Refrigeration manufacture Research and development Rotary, centirfugal evaporators Scanning electron microscopes - SEM SEM/FIB (ion beam repair) Solvent recovery Surface science instruments Turbomolecuar backing pumps Specifications    Model  RV8  Vacuum pump type  Dual stage rotary vane  Power  110V 50/60Hz 1-PH 5A or 220V 50/60Hz 1-PH 2.1A  Power connection  US standard 3-prong plug (NEMA 5-15P)  Motor power at 50Hz  450 watts  Motor power at 60Hz  550 watts  Peak pumping speed  6.9 CFM at 60Hz  Ultimate vacuum without gas ballast  1.5 micron/millitorr  Ultimate vacuum with gas ballast  60 micron/millitorr  Unit dimensions (WxDxH)   18.5 x 6.2 x 8.9"  Shipping dimensions (WxDxH)  31 x 11.5 x 19"  Max water vapor inlet pressure  28.5 torr (38 mbar)  Max allowed pressure at outlet  0.2 bar gauge/2.8 psig  Operating temperature range  54°F to 104°F (12°C to 40°C)  Oil capacity  Minimum 0.48 quart (0.45 L), maximum 0.8 quart (0.75 L)  Oil type  Ultragrade 19  Nominal rotation speed at 50/60Hz  1500/1800 rpm  Noise level  48 dB(A)  Inlet connection  NW25/KF25  Outlet connection  NW25/KF25  Unit weight  57 Lbs  Shipping weight  70 Lbs  Users manual  Click here to download  Certification  CE, UL

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Edwards E2M80 57 CFM Dual-Stage High Capacity Vacuum Pump Brand new Edwards E2M80 high capacity vacuum pump with one year manufacturer warranty from Edwards. https://shop.edwardsvacuum.com/products/a36504940/view.aspx Overview Edwards E2M series two stage oil sealed rotary vane vacuum pumps are renowned for their high ultimate vacuum, rapid pumping speeds, quiet operation and ability to handle water vapour. These direct drive rotary vane pumps are inherently compact and vibration free, and with their finger-proof fan and coupling housings they offer excellent operator protection.A comprehensive range of accessories is available to allow use on a wide variety of vacuum applications.Supplied with Ultragrade 70 Oil. Fomblin must be purchased separately for PFPE prepared pumps E2MFX. Technology Reliable system protection devices: Every pump has protection devices to prevent oil and air suck-back into the vacuum system if the pump stops while under vacuum. A variety of protection devices are used, depending on the pump size and cost, but emphasis is always placed on reliability and simplicity. When you use gas ballast on some of the pumps, you must use a solenoid operated gas ballast control valve to prevent air suck-back.Positive Pressure Oil Lubrication: The EM pumps incorporate a well proven positive pressure oil lubrication system which as been developed by Edwards to ensure correct lubrication in all duty modes and particularly to prevent oil starvation with high gas loads.An integral oil pump ensures that a more than adequate oil flow is pumped throughout the stator/rotor assembly at all times. This oil lubrication system means that the level of oil in the reservoir is less critical than with other pump designs. All pumps can operate with oil levels as low as 50-70 of the maximum. A full length, easily visible oil level sight glass allows you to conveniently monitor the oil level.Gas Ballast Facility: The EM pumps have a gas ballast valve. The valve is used to introduce a suitable gas into the stator during the compression stage: this prevents condensation of vapors inside the pump, dilutes and ejects corrosive gases and purges the oil of gases and vapors. Therefore, the use of gas ballast reduces oil degradation and pump corrosion.Low Noise Levels: The EM pumps maintain Edwardss reputation for quiet operation pumps with a typical noise level of 70 dB(A).Pumping Systems: The EM pumps, with suitable accessories, can partner a variety of other types of pump in vacuum systems for industry and for research. A special feature of the E2M80 is the central vacuum inlet which enables you to fit a mechanical booster pump with a minimum overhang, to create compact combination pumping systems.Easy Maintenance: The advanced lubrication system allows the EM pumps to work with wide oil level tolerances, which reduce the need to top-up the oil.All EM pumps are constructed with internal dowels, which reduce the need for skilled setting of tolerances, when the pump is dismantled. The pumps are designed so that all key components are easily accessible. The exhaust valve seals and oil distributor seals are exposed after the top cover is removed. The shaft seal can be replaced quickly without stripping down the pump. Applications Vacuum metallurgy processes Thin film coating technologies Pharmaceutical freeze drying Refrigeration and air conditioning system evacuation, drying, and backfilling Transformer and cable drying and impregnation, insulating oil treatment plant Lamp manufacture Cryogenic vessel evacuation Vacuum drying and distillation in chemical industries Semiconductor device manufacture Backing pump for high vacuum applications

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Welch ChemStar 1400N 0.9 cfm 0.1 Micron Belt Drive 2-Stage Pump ***Note: This item has a possible 1-2 week lead time depending on stock availability.***  Product Details Low rotation speed for longer service life Vital parts corrosion resistant Large oil reservoir dilutes contaminants ChemStar belt-driven Vacuum Pump is designed to tolerate harsh chemical contamination. Vital pump parts are corrosion resistant. The large oil reservoir with PTFE surfaces dilutes contamination and the low pump rotational speed lessens friction to reduce operating temperature and chemical effects. PTFE surfaces, fluorcarbon gaskets and seals, Nitrogen purge to cool and degas oil. ChemStar system comes with Gold Oil, a synthetic lubricant designed to minimize effects of chemical contaminants.   Specifications Model Number 1400N Application Vacuum Manifolds, (Schlenk Lines), High boiling point evaporations (to 195 deg. C), General laboratory. HCl, O3, H2SO4*HBr, HOAC, SOx*Br2, F3CCO2H, H2S*Cl2, CH2O, HNO3*SF6, CF4 Fragments and other gases; Type Belt-Drive Vacuum Pump, chemical resistant Free Air Displacement cfm (l/min.) @60Hz 0.9(25) Ultimate Pressure 1 x10-4(0.00013) Pump RPM 580 Oil Capacity 0.62(0.59) Motor Horsepower (watts) 1/3(250) Adjustable Vac. / Gas Ballast Yes Tubing Needed 7/16(11) ISO Exhaust / Intake Flange NW 16 Overall Dimensions LxWxH in. (cm) 17.8x9x12.6 (45.2x22.9x32) Ship Weight 71(32.3) Shipping Carton Dimensions LxWxH in. (cm) 20.5x13.8x14.5 (52.1x35.1x36.8)

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Welch ProBoost Air-Cooled Diffusion Pump Product Details Use Welch ProBoost in conjunction with a backing pump like the CRVpro to get deeper vacuum and higher flow.  High Vacuum to 10⁻⁵ torr Use with high vacuum and Schlenk lines Employs air cooled diffusion pump Easy Attachment to backing pump  Welch ProBoost is an air cooled gas jet pump (commonly called a diffusion pump). The gas jet is formed by directing boiling silicone vapors through a hollow cone. There are no internal moving parts. The pumping action commences when the vacuum pressure in the still (i.e. wiped film) goes below 0.2 torr (200 millitorr). On an empty, leak free still, ProBoost backed by a rotary vane pump lowers the vacuum pressure to 0.00002 torr (20x lower in pressure than a 2-stage rotary vane vacuum pump can do alone).  ProBoost backed by a rotary vane vacuum pump will lower vacuum pressure to below 0.0001 torr in high vacuum and Schlenk lines. This high vacuum is invaluable to improve the results from reactions using air-sensitive compounds such as organometallics, metal amides, and hydrides.  ProBoost has a built-in control board for fan and heater. When you turn on ProBoost, the fan and heater both turn on. When you turn off ProBoost, the heater turns off immediately and the fan runs for another 20 minutes to cool the pump.      Specifications Maximum Pumping Speed, Air 80 l/sec Ultimate Vacuum Pressure 0.00002 torr Minimum Back Pump FAD at 60 Hz 2.8 CFM Maximum Discharge Pressure 0.2 torr Ambient Environmental Temp 10–30°C Heat-up time 7 minutes Inlet Connection NW50 Discharge Connection NW25 Silicone Oil Capacity Approximately 30 ml Cool Down Time 20 minutes Pump Dimensions, L x W x H 5.5 x 5.4 x 7.5 in Weight 5.6 lbs (2.5 kg)   Download Manual  

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Welch DUOSEAL Two Stage - Refrigeration ***Note: This item has a possible 1-2 week lead time depending on stock availability*** Product Details: 115V, 60Hz, 1 Ph with N.Amer, 115V Plug Deep vacuum for fast evacuation and dehydration Durable pump, precision machined Gas ballast for high vapor loads. Rugged DuoSeal belt-drive vacuum pumps enable fast, thorough evacuation of refrigeration systems. Features high flow and deep vacuum with low pump RPM and large oil reservoirs for extended life and reduced maintenance. Includes handles for enable positioning.    Specifications: Model Number 1402B-46 Applications Service Lithium Bromide absorption chillers to 500 -700 tons, fluorcarbon or ammonia chillers to 100 to 200 tons Type DUOSEAL Two Stage - Refrigeration Free Air Displacement m3/hr (l/min.) @50Hz 5.6 Ultimate Pressure 160 Maximum Vacuum 1 x 10-4 (1.3 x 10-4) Oil Capacity 525 Motor Horsepower (watts) 2.25 Adjustable Vac. / Gas Ballast Yes Tubing Needed 13/16" ID Hose or 3/4" Flare Fitting Intake Thread NPT 1-20 ISO Exhaust / Intake Flange 1-20 Overall Dimensions LxWxH in.  20" x 12" x 15" Ship Weight 128(58)

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WELCH Self-Cleaning Vacuum System 2025 Product Details Automatic Self-cleaning purge maintains efficiency, extends diaphragm life Free air displacement: 35 L/min (1.2 CFM) Incremental ballast switch enables fast response to bumping / foaming Complete oil-free dry vacuum systems for rotary evaporators and concentrators. Corrosion-resistant PTFE diaphragm vacuum pump systems enable superior control and efficiency for each evaporation. Provides controlled solvent stripping in flasks up to 5 L. Use 9 torr Model 2025 for solvents with atmospheric B.P. <120o C. Includes analog gauge and vacuum regulation. Inlet and exhaust separators protect pump and lab atmosphere.    Specification Model Number 2025 Applications Controlled vacuum for Rotary evaporators, Centrifugal concentrators, and other evaporative processes. Type Laboratory Vacuum Pump Free Air Displacement m3/hr (l/min.) @50Hz 1.2(34) Ultimate Pressure 1.7(28) Max Pressure PSIG (pascal) 29.5 Adjustable Vac. / Gas Ballast 1/5 Tubing Needed Yes Intake Thread NPT 1/4 Overall Dimensions LxWxH in. (cm) 13.6x12x11.3 (34.5x30.5x28.7) Ship Weight 36(16.3) Intake Catch Jar Yes Exhaust Catch Jar Yes

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 Welch WOB-L Pump 2561 ***Note: This item has a possible lead time of 2-3 weeks depending on stock availability.*** Reliable WOB-L Piston pump is perfect for many common laboratory vacuum applications. Features: Vacuum to 5 Torr (29.8"Hg). Includes Vacuum Regulator and Gauge - simple to adjust and monitor vacuum level. Inlet Water Trap - float ball rises to seal off pump from accidental ingestion of water. Muffler quiets pump and filters discharge air. For use with dry or aqueous vapor applications only. Features: Economical Oil Free Adjustable Vacuum Applications: Vacuum Filtration Many filtrations require only minimal vacuum to proceed; deep vacuum is not required. Vacuum pump flow required is roughly proportional to the total surface area of filters being used. Filtration of particulate-clogging samples can be improved somewhat with deeper vacuum, but a combination of larger filter surface area, smaller samples, and sequential use of decreasing porosity filter papers may also be required for timely filtration. Choose a standard duty vacuum pump for aqueous vapors; use a PTFE pump for resistance to harsh chemicals.  Specifications: Applications Vacuum filtration up to 6 funnel manifold; Lab automation - aspiration of systems utilizing 96 / 256 well format; Welchnet lab installations up to 10 outlet fixtures (geneneral use, filtration) Type Laboratory Vacuum Pump Free Air Displacement cfm (l/min.) @60Hz 3.5(100) Free Air Displacement m3/hr (l/min.) @50Hz 4.9(83) Ultimate Pressure 60(80) Maximum Vacuum 27.6 Max Pressure PSIG (pascal) Motor Horsepower (watts) 1/3(250) Adjustable Vac. / Gas Ballast Yes Tubing Needed 1/4(7) Intake Thread NPT 1/4 Overall Dimensions LxWxH in. (cm) 15.0x10x10 (38.1x25.4x25.4) Ship Weight 24(10.9) Shipping Carton Dimensions LxWxH in. (cm) 21x12x15 (53x30x38) Intake Catch Jar Yes Adjustable Vacuum Knob Vacuum Gauge Dial

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Welch CRVpro30 Two-Stage Rotary Vane Pumps   •Consumes up to 36% less oil than comparable pumps. •Runs 10°C cooler than comparable pumps. Slows corrosion. •Has a 40% larger oil capacity than comparable pumps. Dilutes aggressive chemicals. •Has a chemical resistant coating in the oil case and pump module. Protects non-moving parts. •Available in 115V/60Hz. •Free air displacement @60Hz: 22.1 cfm (627 L/min) •Ultimate pressure: 3x10-3 mbar (2x10-3 Torr). CRVpro vacuum pumps are two-stage direct-driven vacuum pumps. They are nine models of CRVpro available with free air displacement from 1.8 cfm to 52.5 cfm. Ultimate pressure to 2x10⁻³ torr. Three models of pumps with explosion proof motors, with free air displacements from 2.8 to 12.8 cfm, are available by clicking on the "Explosion Proof" tab below. The benefits of CRVpro pumps are: reduced risk of chemical attacks and oil breakdown by diluting chemical vapors with a larger oil chamber slowing down corrosion by cool running operation provides a measure of protection from sublimed chemical vapors with coating on pump module and oil case. These benefits lead to extended service interval. Depending on model, motor options include 1 Ph TEFC, 3 Ph TEFC, and 1 Ph ex proof motors. Welch vacuum pump oil is specifically formulated for the unique needs of vacuum pumps. Use of non-Welch vacuum pump oil voids any performance claims and product warranties. •In Duoseal belt driven rotary vane pumps, use Welch Duoseal or Welch Gold Oil •In CRVpro rotary vane pumps use Welch premium or Welch gold oil •In Chemstar belt driven rotary vane pumps use Welch gold oil CRVpro vacuum pumps can be used for freeze drying, vacuum ovens, concentrators, glove boxes, schlenk lines, HVAC/refrigeration service, coaters, backing diffusion pumps and turbo molecular pumps, short path, wiped film, metallurgy/vacuum furnaces, lamp manufacture, space simulation, degassing, vessel/chamber evacuation. CRVpro vacuum pumps prepared with perfluoropolyether (PFPE) for oxygen service are available. Contact your local Welch sales representative for details on PFPE prepared pumps and for selecting correct vacuum pump for your application. Weight 99 Ultimate Pressure 3 x10⁻³ Dimensions (mm) 683x384x389 Free Air Desplacement 22.1 (627)

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