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Best Positive Displacement Vane Meter

Robinair (15150) VacuMaster Economy Vacuum Pump - 2-Stage, 1.5 CFM

  • Robinair's VacuMaster Economy Vacuum Pump is designed for air conditioning and refrigeration service.
  • featuring a 2-stage rotary vane design, 7.4 ounce oil capacity, and non-skid feet.
  • 1/4 HP, 115V/60Hz thermally protected motor.
  • Features an inlet fitting engineered for maximum airflow, while preventing oil backflow, and finned aluminum surfaces that dissipate heat faster, keeping the pump cooler and extending life.
  • 1/4 inch MFL & 3/8 inch ACME inlet fittings, 3/8 inch FFL x 1/2 inch ACME adapter, easy to read sight glass, easy access oil fill port, and angled oil drain valve for faster, more complete draining.
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Robinair (15500) VacuMaster Economy Vacuum Pump - 2-Stage, 5 CFM , Red

  • Robinair's VacuMaster Economy Vacuum Pump is designed for air conditioning and refrigeration service.
  • featuring a 2-stage rotary vane design, 7.5 ounce oil capacity, and non-skid feet.
  • 1/3 HP, 115V/60 Hz thermally protected motor.
  • Features an inlet fitting engineered for maximum airflow, while preventing oil backflow, and finned aluminum surfaces that dissipate heat faster, keeping the pump cooler and extending life.
  • 1/4 inch MFL & 3/8 inch ACME inlet fittings, 3/8 inch FFL x 1/2 inch Acme adapter, easy to read sight glass, easy access oil fill port, and angled oil drain valve for faster, more complete draining.
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Robinair (15301) VacuMaster Economy Vacuum Pump - 2-Stage, 71 liters/minute

  • Robinair's VacuMaster Economy Vacuum Pump is designed for air conditioning and refrigeration service.
  • featuring a 2-stage rotary vane design, 7.5 ounce oil capacity, and non-skid feet.
  • 3 CFM (71 liters/minute) free air displacement.
  • 1/3 HP, 220V/50Hz thermally protected motor.
  • Features an inlet fitting engineered for maximum airflow, while preventing oil backflow, and finned aluminum surfaces that dissipate heat faster, keeping the pump cooler and extending life.
  • 1/4 and 1/2 inch MFL inlet fittings, 3/8 inch FFL x 1/2 inch ACME adapter, easy to read sight glass, easy access oil fill port, and angled oil drain valve for faster, more complete draining.
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Robinair 15800 VacuMaster Economy Vacuum Pump - 2-Stage, 8 CFM, CHROME

  • Robinair's VacuMaster Economy Vacuum Pump is designed for commercial refrigeration use and features a 2-Stage rotary vane design, 18.6 ounce oil capacity, and non-skid feet.
  • 115V, 60 Hz. Better access when refilling oil.
  • Features an inlet fitting engineered for maximum airflow while preventing oil backflow, and finned aluminum surfaces that dissipate heat faster, keeping pump cooler and extending life.Cord length:72 inch.
  • 1/4 & 3/8 inch MFL inlet fittings, easy to read sight glass, easy access oil fill port, and oil drain valve positioned at the bottom of the oil reservoir and angled for faster, more complete draining.
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Robinair (15501) VacuMaster Economy Vacuum Pump - 2-Stage, 118 liters/minute

  • Robinair's VacuMaster Economy Vacuum Pump is designed for air conditioning and refrigeration service.
  • featuring a 2-stage rotary vane design, 7.5 ounce oil capacity, and non-skid feet.
  • 118 liters/minute (5 CFM) free air displacement.
  • 1/3 HP, 220V/50 Hz thermally protected motor for international use.
  • Features an inlet fitting engineered for maximum airflow, while preventing oil backflow, and finned aluminum surfaces that dissipate heat faster, keeping the pump cooler and extending life.
  • 1/4 inch MFL & 1/2 inch ACME inlet fittings, 3/8 inch FFL x 1/2 inch Acme adapter, easy to read sight glass, easy access oil fill port, and angled oil drain valve for faster, more complete draining.
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Robinair (15310) VacuMaster Single Stage Vacuum Pump - Single-Stage, 3 CFM

  • Robinair's VacuMaster Single-Stage Vacuum Pump is designed for air conditioning and refrigeration service.
  • featuring a single stage rotary vane design, 8.5 ounce oil capacity, and non-skid feet.
  • 1/4 HP, 110V/60Hz thermally protected motor.
  • Features an inlet fitting engineered for maximum airflow, while preventing oil backflow, and finned aluminum surfaces that dissipate heat faster, keeping the pump cooler and extending life.
  • 1/4 inch flare and 1/2 inch ACME inlet fittings, easy to read sight glass, easy access oil fill port, and angled oil drain valve for faster, more complete draining of the reservoir.
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Robinair (15115) VacuMaster Single Stage Vacuum Pump - Single-Stage, 1.5 CFM

  • Robinair's VacuMaster Single-Stage Vacuum Pump is designed for air conditioning and refrigeration service.
  • featuring a single stage rotary vane design, 10 ounce oil capacity, and non-skid feet.
  • Features an inlet fitting engineered for maximum airflow, while preventing oil backflow, and finned aluminum surfaces that dissipate heat faster, keeping the pump cooler and extending life.
  • 1/4 inch flare and 1/2 inch ACME inlet fittings, easy to read sight glass, easy access oil fill port, and angled oil drain valve for faster, more complete draining of the reservoir.
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How to build a HUGE STEEL COCK: The BEST and MOST COMPLETE ENGLISH GUIDE.

  • Robinair's VacuMaster Economy Vacuum Pump is designed for air conditioning and refrigeration service.
  • featuring a 2-stage rotary vane design, 7.5 ounce oil capacity, and non-skid feet.
  • 1/3 HP, 115V/60 Hz thermally protected motor.
  • Features an inlet fitting engineered for maximum airflow, while preventing oil backflow, and finned aluminum surfaces that dissipate heat faster, keeping the pump cooler and extending life.
  • 1/4 inch MFL & 3/8 inch ACME inlet fittings, 3/8 inch FFL x 1/2 inch Acme adapter, easy to read sight glass, easy access oil fill port, and angled oil drain valve for faster, more complete draining.
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Robinair (15600) CoolTech Vacuum Pump - 2-Stage, 6 CFM

  • Robinair's CoolTech 2-stage rotary vane design vacuum pump features the power and capacity needed for a wide range of service applications as well as robust construction for a long service life.
  • Powerful 1/2 HP, 115V/60Hz thermally protected motor, 6 CFM free air displacement, and factory rated to 15 microns for a fast, thorough evacuation.
  • Offset rotary vanes build powerful compression within the pumping chamber - reducing pressure and vaporizing moisture.
  • durable molded polycarbonate base improves pump balance and minimizes vibration.
  • Iso-Valve isolates pump from system with just a quarter turn.
  • Gas Ballast design mixes moisture laden air passing through pump with relatively dry air so compression doesn't cause condensation.
  • 1/4, 3/8, and 1/2 inch male flare inlet fittings, easy to read sight glass, easy access oil fill port, and angled oil drain valve for faster, more complete draining of the reservoir.
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Robinair (15400) CoolTech Vacuum Pump - 2-Stage, 4 CFM

  • Robinair's CoolTech 2-stage rotary vane design vacuum pump features the power and capacity needed for a wide range of service applications as well as robust construction for a long service life.
  • Powerful 1/2 HP, 115V/60Hz thermally protected motor, 4 CFM free air displacement, and factory rated to 15 microns for a fast, thorough evacuation.
  • Offset rotary vanes build powerful compression within the pumping chamber - reducing pressure and vaporizing moisture.
  • durable molded polycarbonate base improves pump balance and minimizes vibration.
  • Iso-Valve isolates pump from system with just a quarter turn.
  • Gas Ballast design mixes moisture laden air passing through pump with relatively dry air so compression doesn't cause condensation.
  • 1/4 inch and 1/2 inch male flare inlet fittings, easy to read sight glass, easy access oil fill port, and angled oil drain valve for faster, more complete draining of the reservoir.
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Robinair (15120A) CoolTech Vacuum Pump - 2-Stage, 10 CFM

  • Robinair's CoolTech 2-stage rotary vane design vacuum pump features the power and capacity needed for a wide range of service applications as well as robust construction for a long service life.
  • Powerful 1/2 HP, 115V - 60Hz thermally protected motor, 10 CFM free air displacement, and factory rated to 15 microns for a fast, thorough evacuation.
  • Offset rotary vanes build powerful compression within the pumping chamber - reducing pressure and vaporizing moisture.
  • durable molded polycarbonate base improves pump balance and minimizes vibration.
  • Iso-Valve isolates pump from system with just a quarter turn.
  • Gas Ballast design mixes moisture laden air passing through pump with relatively dry air so compression doesn't cause condensation.
  • 1/4, 3/8, and 1/2 inch male flare inlet fittings, easy to read sight glass, easy access oil fill port, and angled oil drain valve for faster, more complete draining of the reservoir.
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Sailing Beyond Horizons

  • ✔️ 【Air Speed Measurement】The BTMETER BT-876 cup wind meter provides the trusted accuracy, reliability, usability on wind velocity measurement. Measures ultra high range wind speed from 1.5~93mph, 4 speed units optional: km/hr, Knots, m/s, mph. Portable wind tester for hobbyist, HVAC.
  • ✔️【 360° Wind Measurement 】Thanks to the cup vane sensor, BT-876 can easily register wind from every direction. Compares to traditional fan blades anemometer, BT-876 can take accurate wind measurement without face to the wind.
  • ✔️【Built-in Top Compass】In addition to letting you know the approximate wind direction, this small design is also useful for mountaineering, hiking, sailing, shooting. With standard 1/4" tripod mounting screw hole on the bottom of the wind meter, allowing you set you hands free to get continuously air velocity measurement.
  • ✔️【Handy Handheld Cup Wind Meter】2 button simple operation to be your handy wind anemometer. 3 lines value display allows you know the Current/ Maximum/ Average wind speed at the same page. Along with beaufort level bargraph.
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Robinair (15401) CoolTech Vacuum Pump - 2-Stage, 93 liters/minute

  • Robinair's CoolTech 2-stage rotary vane design vacuum pump features the power and capacity needed for a wide range of service applications as well as robust construction for a long service life.
  • Powerful 1/3 HP, 115V/220-250V - 60/50Hz thermally protected motor, 94 liters per minute free air displacement, and factory rated to 15 microns for a fast, thorough evacuation.
  • Offset rotary vanes build powerful compression within the pumping chamber - reducing pressure and vaporizing moisture.
  • durable molded polycarbonate base improves pump balance and minimizes vibration.
  • Iso-Valve isolates pump from system with just a quarter turn.
  • Gas Ballast design mixes moisture laden air passing through pump with relatively dry air so compression doesn't cause condensation.
  • 1/4 inch and 1/2 inch male flare inlet fittings, easy to read sight glass, easy access oil fill port, and angled oil drain valve for faster, more complete draining of the reservoir.
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