Recovery Pumps

Butane Recovery Pump RECOVER MORE WITH LESS BVV is proud to introduce our new and powerful line-up of Butane & Propane Recovery Pumps. Blending compact design with improved Gen III Pistons from RKMAC, this collection of pumps can help you recover 1lb. of butane every 1:40 Seconds!  This pump Assembled in the USA and all the critical parts are domestically made.  Finding parts wont be an issue with this pump.    The piston seals are rated to 450F and the average operating temperature of the pump is 175F leading to a long service life.  Built to meet ANSI/ISA 12.12.01 for Use in Hazardous locations Class I & II, Division 2 and Class III, Divisions 1 & 2 environments.  The computer controlled brushless DC motor operates at 3000 RMP nearly twice as fast as any other pump in its class.   BVV Butane/Propane Recovery Pumps are: Process up to 10,000 lbs. of vapor recovery before rebuild Equipped with oil-less reciprocating compressors for a clean product Designed and Assembled in the U.S.A. with domestic and global parts Affordable and highly cost efficient  Available in 2-Cylinder, 4-Cylinder, CMEP Retrofit Comes with a 1-year Manufacturer’s Warranty covering Hemp usage Rated universal voltage 100-240V AC 50/60 Hz 1Ph Built with high efficiency Brushless DC Motor used for variable speed control Equipped with Viton O-Ring Seals for Butane/Propane gas and oil compatibility Piston Seal rebuild kits are USA made and available Part# BVV-3.  Certified by ITS/ETL to ANSI/ISA 12.12.01 Noise level: 90.3 dB at 1m. Technical Data Sheet BVV™ 2 & 4 Cylinder Rebuild Instruction Manual *Butane recovery results were achieved on a collection base pressure greater than 30psi and using a recovery cylinder with a pressure <10psi.   A dry ice coil was used in between the output port of the pump and the recovery cylinder to condense vapor. 

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Butane Recovery Pump RECOVER MORE WITH LESS BVV is proud to introduce our new and powerful line-up of Butane & Propane Recovery Pumps. Blending compact design with improved Gen III Pistons from RKMAC, this collection of pumps can help you recover 1lb. Butane / 0:51 Seconds!  This pump Assembled in the USA and all the critical parts are domestically made.  Finding parts won't be an issue with this pump.    The piston seals are rated to 450F and the average operating temperature of the pump is 175F leading to a long service life. Built to meet ANSI/ISA 12.12.01 for Use in Hazardous locations Class I & II, Division 2 and Class III, Divisions 1 & 2 environments. The computer controlled brushless DC motor operates at 3000 RMP nearly twice as fast as any other pump in its class.   BVV Butane & Propane Recovery Pump Features: Process up to 10,000 lbs. of vapor recovery before rebuild Equipped with oil-less reciprocating compressors for a clean product Designed and Assembled in the U.S.A. with domestic and global parts Affordable and highly cost efficient Available in 2-Cylinder, 4-Cylinder, CMEP Retrofit Comes with a 1-year Manufacturer’s Warranty covering Hemp usage Rated universal voltage 100-240V AC 50/60 Hz 1Ph Built with high efficiency Brushless DC Motor used for variable speed control Equipped with Viton O-Ring Seals for Butane/Propane gas and oil compatibility Piston Seal rebuild kits are USA made and available Part# BVV-3.  Certified by ITS/ETL to ANSI/ISA 12.12.01 Noise level: 93.0 dB @ 1m Technical Data Sheet BVV™ 2 & 4 Cylinder Rebuild Instruction Manual Shop all recovery pumps here. *Butane recovery results were achieved on a collection base pressure greater than 30psi and using a recovery cylinder with a pressure <10psi. A dry ice coil was used in between the output port of the pump and the recovery cylinder to condense vapor. 

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REFURBISHED - CMEP-OL Oil-less Explosion Proof Recovery Pump with BVV CMEP-OL 4CYL Retro Fit Upgraded Head REFURBISHED CMEP-OL COMES WITH IN HOUSE 30 DAY WARRANTY. HAS GONE THROUGH OUR SERVICE DEPARTMENT FOR A FULL SERVICE REBUILD. (PUMP MAY HAVE COSMETIC BLEMISHES) The CMEP-OL is the first oil-less explosion proof recovery pump in the world that has been specifically designed with the extraction industry in mind. Your safety and the safety of others are paramount, so you will be happy to know that the CMEP-OL meets UL explosion proof safety standards and uses only food safe internal components. All internal metal components on the CMEP-OL are made from stainless steel, same as a closed-loop extraction system. The seals are made from PTFE (Teflon), making them leak proof and impervious to hydrocarbon based refrigerants and solvents such as R600 (butane) and R290 (propane). CMEP-OL Features & Specifications: BVV CMEP-OL Retro Fit Upgraded Heads All stainless steel and PTFE components ensures your extracts don’t get contaminated or polluted Approved Refrigerants: R600,R600A, and R290 UL listed explosion proof motor provides sparkless operation 1HP stainless steel oil-less twin-cylinder compressor Compressor gas displacement: 1.25CFM air condenser for recovery-cooling assist Entire system specially designed for hydrocarbon recovery Meets UL explosion proof standards Engineered for 24-hour continuous duty working conditions NEMA 7 electrical enclosure (explosion proof) Includes carrying handles and casters for easy moving 3/8″ NPT inlet & outlet ports (1/4” SAE flare & 3/8” SAE flare adapters both included) Ultimate vacuum capability: -29.48”Hg High pressure protection: 360 PSIG Voltage: 115 VAC / 6.5 A / 60Hz Power Consumption: 750 watts Weight: 94 lbs Patent and UL certificates pending

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The TRS21 is an Anti-Spark/Explosion pump designed and built specifically for R-600, Ignition Proof Construction meets ANSI/ISA 12:12.1 The pump can be used to recirculate the solvent through the system increasing speed of processing and yield, or just to reclaim the solvent to greatly increase recovery time to minutes. The Upgraded version of the TRS21 comes pre-installed with higher quality internal components that increase recovery speed drastically and also comes with 3/8" JIC and SAE Flares to reduce restrictions in the pump and increase flow/recovery rates. Upgraded Version Includes: Hand Rebuilt in the USA with premium upgraded materials and parts. Custom Hand Set piston displacement for each cylinder set. Standard Stainless Steel 1/4" Flares + 3/8" JIC flares included Food Grade Grease and Lubricants in bearings and wristpins.  Custom 2 Piece Stainless Pistons for easy rebuilds GEN III Piston Seals (lasts 700% longer than the original OEM seals from CPS) Viton O-Rings (vs Chinese OEM seals that come with the standard unit) Upgraded unit Warranty covers butane users for 1 year from BVV! Standard units are not warrantied.    Key Features: • CPS TRS21 R-600 Recovery Pump, 2 Cylinder Oil-Less Compressor Specifications: • Recovery Rates: Vapor- 2.5lb/min, Liquid-12lb/min • Ignition Proof Construction ANSI/ISA 12:12.1 • Power : 115 VAC, 60 Hz, 10 Amps • Power: 850 watts • Filtration: Internal 100 mesh Screen integrated into Suction Port • Weight : 24 LBS MaintenancePlease note regular maintenance and replacement of seals is NOT covered under warranty as these are normal wear and tear items. Compressor Seals will require re-build after 200-240hrs of operation, depending on use. We stock the following compatible rebuild kits for your convenience: Upgraded TRS21 Rebuild Kits: TRS21 Upgraded Top Piston Assembly TRS21 Upgraded Stainless Steel 2-Piece Piston and Rod Design for Hydrocarbon Extraction TRS21 Upgraded Compressor head SS ¼” SAE 45D IN and OUT fittings TRS21 Complete Connecting Rod Assembly Upgrade Kit TRS21 2 Piece Piston Tool CPS Rebuild Kits: TR21X1 Valve Rebuild Kit TR21X2 Complete Rebuild Kit TR21X3 Piston Rebuild Kit TR21X4 Head Rebuild Kit ***DISCLAIMER TO CUSTOMER: Running any solvent that is not authorized by CPS voids all warranty. Running any solvent mixed with any organic plant material will instantly void all warranty. Any Odor coming from the pump or organic plant residuals will also void all warranty.  

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Master Vapor MVP Liquid Recovery Pump  THE NEW LIQUID Pumps solvent in liquid state Hydrocarbon and ethanol compatible C1D1 and 3rd party Certified Drastically increases evaporation byexpanding surface area andcreating turbulence Electric Driven FDA Food Grade Compliant MADE IN THE USA   Engineering Specifications: Maximum pumping outlet pressure - 70 PSI Center Section CO2 charge range 5 to 80 PSI(10-15psi over inlet pressure recommended) CO2 Inlet Size: 1 /4 in. npt(f) Maximum Pump Speed 135 cpm (cycle per minute) Process Inlet and Outlet Size: 1 in. npt  Electric Motor: Explosion proof for C101 Hazardous areas Motor Specifications: 2HP, 3,600 rpm, 60Hz Size: 18.3” x 15.4” base x 42.3” tall Weight: 173.2 lb  All sales final Technical Data sheet US Metric Maximum Pumping outlet Pressure 70 PSI 0.48 MPa, 4.8 bar Center section CO2 Change range 6 to 80 PSI 0.03-0.55 MPa 0.3-5.5 bar Equipment Withstand Pressure 350 PSI 2.41 MPa, 24.1 bar Maximum CO2 Consumption <0.2 scfh <0.006 cubic meters/hour CO2 inlet size 1/4 in. npt(f) Maximum Pump Speed 135 cpm Process intel and outlet size 1 in. npt Model MVP Liquid, 3 ph, Inverter Rated Power 2 HP 1.5kW Speed 3600 rp, (60 Hz) Gear Ratio 25.85 Voltage 1-phase 208-230/460V Maximum Amperaage Load 5.2 A (230V / 2.6 A (460V) Model MVP Liquid 1PH Power 2 HP 1.5kW Speed 3600 rpm (60 Hz) Gear Ratio 25.85 Maximum Amperaage Load 5.2 A (115V / 10 A (230V) Noise Data Sound Power (measured per ISO-9614-2 88.5 dBa Sound Pressure {Tested 3.28ft (1m) From Equipment} 80.5dBa Materials Process Pressure Section and Reed Valves Stainless Steel Diaphragms Standard: FKM Fluoroelastomer Optional:PTFE Process Vapor Temperature Range FKM: -40 to 275 °F (-40 to 135 C)PTFE: +40 to 220 °F 9+4 to 104 C

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Master Vapor MVP Recovery Pump - 60 PSI    The Master Vapor Pump Model MVP-6CFM is a certified gas recovery pump designed to operate at 60 PSI. This pump is designed specifically for LP-Gas vapor recovery and is ideal for butane or butane / propane mixtures.  Engineering Specifications: Recover LP-Gas vapor at OVER 6 CFM (cubic feet per minute) Recover butane at up to 1 LB/MIN (pounds per minute) Recover and recondense butane at OVER 12 GPH (gallons per hour) Electric motor: explosion proof for C1D1 hazardous areas; rated Class I Gr C & D, Class II Gr F&G Electric motor: 1 HP, 1800 RPM, 60 HZ Pump speed: 190 CPM (cycles per minute) at 60 HZ Size: 17.0” x 19.9” base x 46” tall Weight: 182.5 lb (82.8 kg) Motor Option: Model MVP-6CFM-1PH: Single-phase: 115/208-230V, 13.4/6.7 FLA (full load amps) Model MVP-6CFM-3PH: Three-phase: 208-230/460V, 3.3/1.65 FLA, Inverter-rated Documentation: Product Manual  Technical Data Sheet  Features and Benefits Sheet 

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Master Vapor MVP Recovery Pump - 150 PSI (This item may carry up to a 2-4 week lead time) (This item is limited to a maximum of 10% discount during sales) The Master Vapor Pump Model MVP-150-1PH is a certified gas recovery pump designed to operate at 150 PSI. This pump is designed specifically for LP-Gas vapor recovery and is ideal for butane or butane / propane mixtures.  Please note that the standard Single Phase and Three Phase models are UL Certified and that the ATEX Three Phase is CE Certified.  Engineering Specifications: Recover LP-Gas vapor at OVER 6 CFM (cubic feet per minute). Recover butane at up to 1.5 LB/MIN (pounds per minute) Recover and recondense butane at OVER 18 GPH (gallons per hour) Electric motor: explosion proof for C1D1 hazardous areas; rated Class I Gr C & D, Class II Gr F&G Electric motor: 2 HP, 3600 RPM, 60 HZ. Pump speed: 220 CPM (cycles per minute) at 60 HZ. Size: 17.0” x 19.9” base x 46” tall Weight: 182.5 lb (82.8 kg)   Motor Option: Model MVP-150-1PH : Single-phase: 115/208-230V, 20/10 FLA (full load amps) - UL Certification Model Model MVP-150-3PH : Three-phase: 208-230/460V, 5.2/2.6A FLA, Inverter-rated - UL Certification   Compliance Details: Compliant with NFPA and UL standards for C1D1 motors and LPG vapor recovery Meets Class 1 Division 1 hazardous area facility requirements (when installed correctly) One year manufacturer’s warranty (see Operation Manual) Made in the USA   Documentation: Product Manual Technical Data Sheet  Features and Benefits sheet 

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Master Vapor Pumps - MVP Recovery Pump - XL 150 PSI   The Master Vapor Pump Model MVP-150XL is a certified gas recovery pump designed to operate at 150 PSI. It can handle over three times the volume of vapor as our standard MVP-150.  This pump is designed specifically for LP-Gas vapor recovery and is ideal for butane or butane / propane mixtures. Please note that this model of the MVP 150 only comes with Three-phase power options available.    Engineering Specifications: Recover LP-Gas vapor at OVER 18 CFM (cubic feet per minute) Recover butane at up to 4.5 LB/MIN (pounds per minute) Recover and re-condense butane between 35-50 GPH (gallons per hour) Electric motor: explosion proof for C1D1 hazardous areas; rated Class I Gr C & D, Class II Gr F&G Electric motor: 5 HP, 1800 RPM, 30 HZ Pump speed: 174 CPM (cycles per minute) at 60 HZ Size: 17.0” x 22.8” base x 46.4” tall Weight: 360.5 lb (163 kg)  All sales final  

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Corken Gas Compressor Corken's vertical industrial gas compressors offer piston displacement ranging from 2.8 to 117 CFM (4.76 to 198.8 m3/hr) while horizontal gas compressors offer piston displacement ranging from 7.6 to 414 CFM (12.9 to 704 m3/hr). Corken Recovery Pump T91 Corken is a leading manufacturer of industrial compressors designed for liquefied petroleum gas (LPG). The single stage T91 is oil-free and can recover your hydrocarbon gas faster than most recovery pumps on the market.  Double Distance piece Triple Packing  Oil wipe ring  Adjustable packing Screw Features and Benefits: Oil-free gas compression: No product contamination   Food grade material: PTFE trim and nickel coated parts  Faster recovery time: Allows more production runs  Zero psig evacuation pressure: Minimizes waste  Self-lubricating PTFE piston rings: Low friction design provides many hours of trouble-free service  Quiet operation: Suitable for indoor applications (approximately 85 dBa at three feet)  Space saving: Air compressor is not required  Adjustable packing screw: Extends life of the packing Cost effective: Does not require air compressor and pneumatic driver. Avoid possible air/propane cross contamination   Motor: UL and CSA compliant and suitable for Class 1, Division 1, Group C & D application    Operating Specifications Bore of cylinder inches (mm) 3.0 (76.2) Stroke inches (mm) 2.5 (63.5) Piston displacement cfm (m3/hr) Minimum @ 400 RPM 4.1 (7.0) Maximum working pressure psig (bar g) 335 (23.1) Maximum brake horsepower (kW) 7.5 (5.6) Maximum rod load lb (kg) 3,600 (1,632.9) Maximum outlet temperature °F (°C) 350 (177)     General Performance Data for Vapor Recovery Compressor speed RPM 700 Vapor temperature °F 70 Final evac pressure psig 0 Maximum working pressure psig (bar g) 335 (23.1) Average recovery rate in lb/hr* Butane: 93Propane: 240   Power Requirements Phase 1Ø Voltage 115/230 VAC Motor Power 3 HP Motor Speed 1750 RPM Motor Frequency 60 Hz   Data Sheet 

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Corken T291 Botanical Oil Extraction Compressor  Botanical Oil Extraction Using a Reciprocating Compressor/Vapor Recovery PumpAs a leading manufacturer of industrial pump and gas compression solutions for the LPG, petrochemical, chemical, and gas processing industries, Corken specializes in liquefied gas transfer and vapor recovery.One of Corken’s more recent vapor recovery applications involves botanical oil extraction. Plant compounds/substances have provided nutritional and medicinal benefits since the beginning of time. As scientists learned more about the healing properties of various plant materials, they began using botanical oil extraction to separate the desired components on a large scale.More recently, botanical extraction is a growing opportunity. Desirable compounds  and terpenes are separated from the rest of the plant using hydrocarbon extraction. Other forms of extraction include ethanol and carbon dioxide (CO2); however, hydrocarbon is a more widely used since it’s more efficient and cost effective. Regulatory ComplianceGood Manufacturing Practice (GMP), European Union ATEX Directive, European Union Machinery Directive, ISO 9001 Standard on Quality Management Systems, and ISO 14001 Standard on Environmental Management Systems. Technical Literature: Application Bulletin Technical Specifications Service Bulletin   Hydrocarbon Extraction Has Four Primary Steps: Step One (Washing): A cold solvent made of propane or butane-washes over the plant material (biomass) at a low temperature and pressure. This process removes the desired material and terpenes from the biomass and dissolves them into the liquid solvent. Step Two (Removing the Impurities): This step removes any waxes and lipids left in the solution. Unlike ethanol extraction that requires a day-long winterization process, hydrocarbon extraction has fewer waxes and lipids so the removal process is easier and does not take as much time. In most closed loop systems, a de-waxing column filters out any of the remaining waxes and lipids. Step Three (Collection): The filtered solvent solution is collected into a new or separate container and the hydrocarbon solvent (propane, butane, or propane butane mix) is purged. Corken’s gas compressors (also known as recovery pump) remove the vapor formed by the solvent solution within the collection tank and returns it to the supply tank so it can be re-circulated. Step Four (Purification): Depending on the desired final state of the product, a purification process may be necessary. Various methods such as a vacuum purge, centrifugal, and co-solvent separation are used to further refine the product. Botancial Oil Extraction Using a Reciprocating Compressor/Vapor Recovery Pump The Corken T-Style reciprocating gas compressor is oil free so there is no contamination of the process gas stream. A T-Style compressor has three sets of packing between the crankcase and compression chamber. Listed below are some of the features and benefits: PTFE trim and nickel coated parts: Compatible with food grade materials Faster recovery time: Allows more production runs Zero psig evacuation pressure: Minimizes waste Self-lubricating PTFE piston rings: Low friction design provides many hours of trouble-free service Quiet operation: Suitable for indoor applications (approximately 85 dBa at three feet)Air compressor is not required: Space saving Adjustable packing screw: Extends life of the packing Cost effective: Does not require air compressor and pneumatic driver. Avoid possible air/propane cross contamination Motor: UL and CSA compliant and suitable for Class 1, Division 1, Group C & D application Optional purge kit available (Compatible with the 07-01-06 U.S. Environmental Protection Agency Regulations 40 CFR CH Section 264.1053)   Power Requirements Phase 3Ø Voltage 230/460 VAC Motor Power 10 HP Motor Speed 1800 RPM Motor Frequency 60 Hz

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BVV 4 Cylinder Active Closed Loop Recovery Kit ITS/ETL to ANSI/ISA Certified (Pump comes with 1 yr. limited warranty)   This is an Upgrade Kit which can be added to any one of our passive systems making it into an "Active" Closed Loop System. The Active Recovery Upgrade Kit will increase recovery times by condensing the vapor a lot faster than just a hot/cold differential. This will increase efficiency and productivity, many professionals use this method, as this drives profits. This Kit Includes the Following: BVV 4 Cylinder Butane Recovery Pump ITS/ETL to ANSI/ISA Certified BVV Large Condensing Coil 1/2" x 24" SS JIC Braided Hose (2) 1/2" x 48" SS JIC Braided Hose (2) 1/2" x 60" SS JIC Braided Hose Molecular Sieve Filter Drier BVV 5' HVAC Hose BVV  Vacuum Tee   RECOVER MORE WITH LESS BVV is proud to introduce our new and powerful line-up of Butane & Propane Recovery Pumps. Blending compact design with improved Gen III Pistons from RKMAC, this collection of pumps can help you recover 1lb. Butane / 0:51 Seconds!  This pump Assembled in the USA and all the critical parts are domestically made.  Finding parts wont be an issue with this pump.    The piston seals are rated to 450F and the average operating temperature of the pump is 175F leading to a long service life.  Certified by ITS/ETL to ANSI/ISA 12.12.01 for Use in Hazardous locations Class I & II, Division 2 and Class III, Divisions 1 & 2 environments.  The computer controlled brushless DC motor operates at 3000 RMP nearly twice as fast as any other pump in its class.   BVV Butane/Propane Recovery Pumps are: Process up to 10,000 lbs. of vapor recovery before rebuild Equipped with oil-less reciprocating compressors for a clean product Designed and Assembled in the U.S.A. with domestic and global parts Affordable and highly cost efficient Available in 2-Cylinder, 4-Cylinder, CMEP Retrofit Comes with a 1-year Manufacturer’s Warranty covering Hemp usage Rated universal voltage 100-240V AC 50/60 Hz 1Ph Built with high efficiency Brushless DC Motor used for variable speed control Equipped with Viton O-Ring Seals for Butane/Propane gas and oil compatibility Certified by ITS/ETL to ANSI/ISA 12.12.01 Noise level: 93.0 dB @ 1m *Butane recovery results were achieved on a collection base pressure greater than 30psi and using a recovery cylinder with a pressure <10psi.   A dry ice coil was used in between the output port of the pump and the recovery cylinder to condense vapor. 

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Corken T-491   Corken hydrocarbon gas compressor are used to handle butane, propane and isobutane.    Benefits of Corken's Gas Compressor: Cost effective: Motor driven unit does not require a pneumatic driver/air compressor  Fast recovery time: High Capacity design shortens recovery time and increases production.  Low evacuation pressure: 0 psig or lower evacuation pressure  Space Saving: Eliminates the need for a separate air compressor, Oil-free Compression: No contamination of gas products Food Grade material: PTFE trim nickel coating for gas wetter parts. Quiet: Noise rating of approximately 85dBa os beneficial to an enclosed explosion proof processing area.    T-491 OUTLINE Drawing    T-491 SPECIFICATION D / T Model 

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  THE PRODIGY Description: 24CFM Single Stage 7.5HP 220V – 3 Phase (Single Phase Inverters Available) Inlet: 1.5” Triclamp Outlet: 1.5” Triclamp Weight: 750lbs Max bearing pressure: 250psi Max discharge pressure: 150psi Max delta pressure: 10x Many factors go into the rate of recovery on an extraction system. Not only is the pump size important, but also the evaporation rate of the solvents. If the solvents aren’t able to evaporate fast enough there will be nothing for the pump to transfer. Larger pumps have the capacity to transfer solvents faster, but only if the solvents are in an evaporated state. Because these pumps are so large they have a tendency to outpace the evaporation rate of most extraction systems.   This lowers the inlet pressure (and the collection vessel pressures) which aids in speeding up the evaporation rate. Propane weighs less per gallon than butane (4.2 vs 4.9), however the vapor pressure is higher which generally results in a higher inlet pressure, and therefor a faster recovery per pound of gas used. These pumps are sized large enough to recover on the largest extraction systems with the highest evaporation rates, or can be used on multiple extraction systems at one time. For example this pump was used to recover 5lbs of butane on a 6” vessel with 70° of temperature. The process took ~12 minutes. However increasing the process to 3x 6” vessels with 5lbs of butane each(15lbs total), the process also took ~12 minutes. This is because the pump exceeds the evaporation rate of a single 6” column at 70° by more than 3x. Because the pump exceeds the evaporation rate a vacuum is pulled against the collection vessel, which in turn speeds up the evaporation rate. However once vacuum equilibrium is achieved, increasing the pump size will not speed up the process, but will allow for larger (or multiple) processes to be preformed in the same time frame. The next tab shows a table of recovery capacity with regards to inlet pressures. Higher inlet pressures result in substantially faster recovery times. Higher inlet pressures can be achieved by evaporating solvents faster by higher temperatures in collection vessels, or more surface area in collection vessels (larger diameter vessels, falling film, etc).       Inlet Pressure LBS per Minute Butane LBS per Minute Propane -13 psi (Vacuum) .48 .35 -10 psi (Vacuum) .96 .7 -7 psi (Vacuum) 1.92 1.4 -4 psi (Vacuum) 2.88 2.09 0 psi 3.84 2.79 15 psi 7.69 5.59 29 psi 11.53 8.38

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The Prophet   The Prophet is the industries largest and fastest LPG recovery pump.  This mammoth pumps at 28 cfm (3.33x the size of a Corken T91) while running quietly at only 68db.  Unlike the other recovery pumps available on the market this pump features a dual stage design which allows for greater delta pressure between the inlet and outlet of the pump.  This allows for higher output pressures (propane) and lower inlet pressures (vacuum).  The ability to pull vacuum against the inlet lowers the boiling point of the recovering solvents allowing them to vaporize faster, speeding up your recovery times.  In addition, this pump can be used to pull initial vacuum in the extraction system.   28CFM Dual Stage 10HP Inlet: 1.5” Triclamp Outlet: 1.5” Triclamp Weight: 865lbs Max bearing pressure: 250psi Max discharge pressure: 150psi Max delta pressure: 10x   Many factors go into the rate of recovery on an extraction system. Not only is the pump size important, but also the evaporation rate of the solvents. If the solvents aren’t able to evaporate fast enough there will be nothing for the pump to transfer. Larger pumps have the capacity to transfer solvents faster, but only if the solvents are in an evaporated state. Because these pumps are so large they have a tendency to outpace the evaporation rate of most extraction systems. This lowers the inlet pressure (and the collection vessel pressures) which aids in speeding up the evaporation rate. Propane weighs less per gallon than butane (4.2 vs 4.9), however the vapor pressure is higher which generally results in a higher inlet pressure, and therefor a faster recovery per pound of gas used. These pumps are sized large enough to recover on the largest extraction systems with the highest evaporation rates, or can be used on multiple extraction systems at one time. For example this pump was used to recover 5lbs of butane on a 6” vessel with 70° of temperature. The process took ~12 minutes. However increasing the process to 3x 6” vessels with 5lbs of butane each(15lbs total), the process also took ~12 minutes. This is because the pump exceeds the evaporation rate of a single 6” column at 70° by more than 3x. Because the pump exceeds the evaporation rate a vacuum is pulled against the collection vessel, which in turn speeds up the evaporation rate. However once vacuum equilibrium is achieved, increasing the pump size will not speed up the process, but will allow for larger (or multiple) processes to be preformed in the same time frame. The next tab shows a table of recovery capacity with regards to inlet pressures. Higher inlet pressures result in substantially faster recovery times. Higher inlet pressures can be achieved by evaporating solvents faster by higher temperatures in collection vessels, or more surface area in collection vessels (larger diameter vessels, falling, etc).     Inlet Pressure LBS per Minute Butane LBS per Minute Propane -13 psi (Vacuum) .56 .41 -10 psi (Vacuum) 1.12 .81 -7 psi (Vacuum) 2.24 1.63 -4 psi (Vacuum) 3.36 2.44 0 psi 4.49 3.26 15 psi 8.97 6.52 29 psi 13.46 9.77

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