Best Positive Displacement Vane Meter

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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Robinair (15424) 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 20 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 male 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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