Pumps
Welch ChemStar 1400N 0.9 cfm 0.1 Micron Belt Drive 2-Stage Pump
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)
$2,732.00 - $3,470.00
Welch DUOSEAL Two Stage - Refrigeration 1402B-46
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)
$3,548.00
WELCH Self-Cleaning Vacuum System 2025
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
$3,725.00 - $3,742.00
CRVpro30
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)
$7,738.00
CPS Vacuum Pump Activated Carbon Exhaust Filter
Carbon Exhaust Filter for CPS Vacuum Pumps Replaces Koby Junior (US Patent# 3169112A) CPS Vacuum Pump Activated Carbon Filter for use with CPS brand vacuum pumps. This filter will adsorb contaminants such as oil aerosols, oil vapors, certain other hydrocarbon vapors, and trace moisture. They also trap all foreign solid particles and bacteria down to 0.5 microns in size. Key Features: Purifies Exhaust Gases from Vacuum Pumps Up to 19 CFM 0.5 Micron Filtration levels. Helps Maintain Safe Working Environment Adsorbs Organic Vapors and Small Particles High-Efficiency Filtration Minimal Pressure Drop Maintenance Free - Completely Disposable Pressure Safe to 90 PSI M26 x 1.0 - Carbon Steel Pump Connection Filter connections 1/4" NPT Pipe Fitting Connections Removes the following contaminants: Oil Mist Oil Aerosols Oil Vapors Hydrocarbon Vapors Moisture Droplets Dust Pipe Scale Rust Fine Particles Odors Organic Aerosols Other Foreign Matter Lifespan:720 hrs. of continuous operation. (Then replacement is recommended) **NOTE PUMP NOT INCLUDED
$115.00
Carbon Exhaust Filter with KF25 Connections
Carbon Exhaust Filter for Vacuum Pumps Replaces Koby Junior (US Patent# 3169112A) This filter will adsorb contaminants such as oil aerosols, oil vapors, certain other hydrocarbon vapors, and trace moisture. They also trap all foreign solid particles and bacteria down to 0.5 microns in size. Key Features: Purifies Exhaust Gases from Vacuum Pumps Up to 19 CFM 0.5 Micron Filtration levels. Helps Maintain Safe Working Environment Adsorbs Organic Vapors and Small Particles High-Efficiency Filtration Minimal Pressure Drop Maintenance Free - Completely Disposable Pressure Safe to 90 PSI KF25 Stainless Steel Connection Filter connections 1/4" NPT Pipe Fitting Connections Removes the following contaminants: Oil Mist Oil Aerosols Oil Vapors Hydrocarbon Vapors Moisture Droplets Dust Pipe Scale Rust Fine Particles Odors Organic Aerosols Other Foreign Matter Lifespan: 720 hrs. of continuous operation. (Then a replacement is recommended) *NOTE PUMP NOT INCLUDED*
$115.00
MasterCool Vacuum Pump Activated Carbon Exhaust Filter
Carbon Exhaust Filter for MasterCool Pumps Replaces Koby Junior (US Patent# 3169112A) MasterCool Vacuum Pump Activated Carbon Filter for use with Mastercool pumps. This filter will adsorb contaminants such as oil aerosols, oil vapors, certain other hydrocarbon vapors, and trace moisture. They also trap all foreign solid particles and bacteria down to 0.5 microns in size. Key Features: Purifies Exhaust Gases from Vacuum Pumps Up to 19 CFM 0.5 Micron Filtration levels. Helps Maintain Safe Working Environment Adsorbs Organic Vapors and Small Particles High-Efficiency Filtration Minimal Pressure Drop Maintenance Free - Completely Disposable Pressure Safe to 90 PSI Brass M24 x 1.0 Pump Connection Filter connections 1/4" NPT Pipe Fitting Connections Removes the following contaminants: Oil Mist Oil Aerosols Oil Vapors Hydrocarbon Vapors Moisture Droplets Dust Pipe Scale Rust Fine Particles Odors Organic Aerosols Other Foreign Matter Lifespan:720 hrs. of continuous operation. (Then replacement is recommended) *NOTE PUMP NOT INCLUDED
$115.00
Replacement Junior Koby Carbon Exhaust Filter
Carbon Exhaust Filter for Vacuum Pumps Replaces Koby Junior (US Patent# 3169112A) This filter for your vacuum pump will adsorb contaminants such as oil aerosols, oil vapors, certain other hydrocarbon vapors, and trace moisture. They also trap all foreign solid particles and bacteria down to 0.5 microns in size. Key Features: Purifies Exhaust Gases from Vacuum Pumps Up to 19 CFM 0.5 Micron Filtration levels. Helps Maintain Safe Working Environment Adsorbs Organic Vapors and Small Particles High-Efficiency Filtration Minimal Pressure Drop Maintenance Free - Completely Disposable Pressure Safe to 90 PSI 1/4" NPT Standard Pipe Fitting Connections on both sides Removes the following contaminants: Oil Mist Oil Aerosols Oil Vapors Hydrocarbon Vapors Moisture Droplets Dust Pipe Scale Rust Fine Particles Odors Organic Aerosols Other Foreign Matter Lifespan:720 hrs. of continuous operation. (Then a replacement is recommended) *NOTE PUMP NOT INCLUDED
$115.00
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Purple BVV Vacuum Pump Activated Carbon Exhaust Filter
Carbon Exhaust Filter for BVV Vacuum Pumps Replaces Koby Junior (US Patent# 3169112A) BVV Vacuum Pump Activated Carbon Filter for use with Purple BVV vacuum pumps. Pump Models Include: BVV4D, BVVSF6S, BVVSF6D, BVV7S, BVV9D, BVVSF12D This filter will adsorb contaminants such as oil aerosols, oil vapors, certain other hydrocarbon vapors, and trace moisture. They also trap all foreign solid particles and bacteria down to 0.5 microns in size. Key Features: Purifies Exhaust Gases from Vacuum Pumps Up to 19 CFM 0.5 Micron Filtration levels. Helps Maintain Safe Working Environment Adsorbs Organic Vapors and Small Particles High-Efficiency Filtration Minimal Pressure Drop Maintenance Free - Completely Disposable Pressure Safe to 90 PSI M30 x 1.0 - Brass Pump Connection Filter connections 1/4" NPT Pipe Fitting Connections Removes the following contaminants: Oil Mist Oil Aerosols Oil Vapors Hydrocarbon Vapors Moisture Droplets Dust Pipe Scale Rust Fine Particles Odors Organic Aerosols Other Foreign Matter Lifespan:720 hrs. of continuous operation. (Then replacement is recommended) **NOTE PUMP NOT INCLUDED
$115.00
Harvest Right Vacuum Pump Activated Carbon Exhaust Filter
Carbon Exhaust Filter for Harvest Right Vacuum Pump Replaces Koby Junior (US Patent# 3169112A) BVV Vacuum Pump Activated Carbon Filter for use with Harvest Right Vacuum pumps. Pump Models Include: OP-VLU11060-PREM This filter will adsorb contaminants such as oil aerosols, oil vapors, certain other hydrocarbon vapors, and trace moisture. They also trap all foreign solid particles and bacteria down to 0.5 microns in size. Key Features: Purifies Exhaust Gases from Vacuum Pumps Up to 19 CFM 0.5 Micron Filtration levels. Helps Maintain Safe Working Environment Adsorbs Organic Vapors and Small Particles High-Efficiency Filtration Minimal Pressure Drop Maintenance Free - Completely Disposable Pressure Safe to 90 PSI M30 x 1.0 - Brass Pump Connection Filter connections 1/4" NPT Pipe Fitting Connections Removes the following contaminants: Oil Mist Oil Aerosols Oil Vapors Hydrocarbon Vapors Moisture Droplets Dust Pipe Scale Rust Fine Particles Odors Organic Aerosols Other Foreign Matter Lifespan:720 hrs. of continuous operation. (Then replacement is recommended) **NOTE PUMP NOT INCLUDED
$115.00
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