Master Vapor Pump 150 Solvent Recovery System

Master Vapor Pump 150



The MVP 150 is a certified LP-Gas recovery pump specifically designed for Butane, Butane/Propane, or pure Propane vapor recovery. The motor is Explosion-proof and rated for C1D1 areas.

It is available in both three-phase and single-phase models and can operate 24/7 without the need for an air compressor. CO2 gas is used to charge the pump-head and must be supplied by the operator.



230V 1~ 460V 3~
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  • Certified positive displacement LP-Gas extraction pump
  • Electric powered double diaphragm gas compressor
  • Explosion-proof motor rated for C1D1 areas
  • Continuous 100% duty cycle – run 24/7
  • No air compressor needed
  • Can pull vacuum back through pump when evacuating system
  • Patented pump drive technology
  • No rotating or moving seals
  • Can run dry without damage
  • Can stall under pressure without damage
  • Can start against full load and pressure
  • Maximum pumping pressure output is adjustable
  • No lubrication in pump heads, no contamination of product
  • Meets NFPA 58 requirements for LP-Gas – rated LPG 350 PSI
  • Meets Class 1 Division 1 Hazardous area facility requirements (when installed correctly)
  • Easy DIY diaphragm replacement or internal cleaning when needed
  • Simple stainless steel reed valve replacement if ever needed
  • One year manufacturer’s warranty
  • Made in USA

Performance Specs:

  • 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 re-condense butane at OVER 12 GPH (gallons per hour)
  • Maximum pumping outlet pressure: 60 PSI (4.1 bar) continuous; 70 PSI (4.8 bar) intermittent
  • Maximum pumping inlet vacuum produced: 27 InHG (0.91 bar)
  • Maximum pumping speed: 190 CPM (cycles per minute)
  • Pump static withstand pressure rating: MAWP 350 PSI (24 bar)
  • Materials: pressure section; stainless steel, diaphragms; FKM, reed valves; stainless steel
  • Process gas temperature range: FKM -40 to 275°F (-40 to 135°C)
  • Recommended FKM replacement schedule: every 1,000 hours
  • Air temperature range for motor/gearbox operation: 32 to 105°F (0 to 40°C)

Pump Head Charge:

  • Motor is coupled to diaphragms with patented gas pressure-charged chamber
  • Pumping outlet pressure runs about 10 PSI lower than the charge gas pressure level
  • Non-reactive CO2 gas is used to charge the pump head
  • CO2 gas is safer than air for driving the pump
  • CO2 gas is non-flammable and non-explosive with LPG (should a diaphragm ever leak)
  • CO2 gas regulator with gauges is provided with pump assembly
  • CO2 tank is operator provided and available at any welding supply store
  • Pump charge gas supply: standard (20#) 5 LB tank of industrial CO2
  • Typical CO2 gas usage: <0.2 SCFH (very little); estimated life of charge gas tank is 1 year
  • Pump charge gas pressure range: continuous 5 to 70 PSI (1.4 to 5.5 bar); to 80 PSI intermittent

Electrical & Mechanical Specs:

  • Electric motor: explosion-proof for C1D1 hazardous areas; rated Class I Gr C & D, Class II Gr F&G
  • Electric motor: 1 HP, 1800 RM, 60 Hz
  • Motor Option 1: Model MVP-6CFM-1PH; Single-phase 115/208-230V, 13.4/6.7 FLA (full load amps)
  • Motor Option 2: Model MVP-6CFM-3PH; Three-phase 208-230/460V, 3.3/1.65 FLA (full load amps), Inverter-rated
  • Pump speed: 190 CPM (cycles per minute) at 60 Hz
  • Noise: sound pressure measured 1 meter from pump; 80.5 dBA
  • Process inlet & outlet: 1/2″ JIC-male
  • Added ports for optional pressure gauges: inlet & outlet 1/4″ FNPT
  • Inlet & outlet ports at ideal equipment connection heights of 46″ and 41″ above floor
  • Size: 17″ x 19.9″ bas x 46″ tall
  • Weight: 182.5 lbs (82.8 kg)
Master Vapor Pump 150 Solvent Recovery System
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