ReviewsVariable Displacement Pump

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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Robinair (15121A) CoolTech Vacuum Pump - 2-Stage, 236 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 1/2 HP, 115V/220V - 60/50Hz thermally protected motor, 236 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, 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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9milelake Bottled Water System Electric Dispensing Pump System 1 Gallon/Min 40 PSI Water Dispensing Pump with 20 ft 1/4 PE Pipe for Coffee Tea Ice-Make Fridge Refrigerator Water Dispensers

This Bottled Water Pump is designed to pump water from commercially available water bottles..
Compact for easy mounting Automatic shut off when bottle is empty.
Built-in check valve prevents backflow Fits a variety of bottles.
Positive displacement pump Smooth flow and quiet operation.
Automatic pump operating Easy bottle change.

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biuufish Aquarium Air Pump Adjustable Output Aquarium Bubble 2.5w Ultra Quiet Fish Tank Air Pump with Aquarium Decorations Volcanic Air Bubble Stone Suitable for 10-60 Gallon Fish Tank

【Adjustable Flow Rate】: This air pump with a rated power of 2.5w is energy-saving and efficient. Designed with a adjusting knob, easily to adjust....
【Quiet Air Pump】: This aquarium pump is very quiet, with a noise of only 40 dB. The 4 non-slip rubber feet at the bottom also reduce noise and....
【Abundant bubbles】: The fish tank pump with volcano decor air bubble stone, which can provide uniform and abundant bubbles for fish tank water and....
【Wide Use】: Aquarium pump power 2.5 W, displacement 3L/min, pressure 15 kPa, high reliability, durability, safety and energy saving: long service....
【Complete Air Pump Accessories】: The package contains: 1 x air pump, 1 x aquarium volcano ornament kit, 1 x air stone, 1 x air pipe, 1 x check....

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Welch Vacuum 2546B-01 Standard Duty Pump, 1-Head, 46 LPM, 60 Torr, 115V

One-head WOB-L-style piston pump with intake and exhaust catch jars for use in vacuum or pressure applications with gel dryers, concentrators, and rotary evaporators.
46 liter per minute (LPM) free air displacement with vacuum to 60 Torr.
Manually adjustable vacuum and pressure levels with gauges.
Oil-free pump for operation without oil misting and contaminated oil disposal.
1/4 HP motor accepts 115V, 60Hz input power.

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6V Water Liquid Peristaltic Pump Constant Flow Hose Drip Metering Pump Lab Mini Dosing Pump for Flow Rate Controlled(Green)

【Variable Direction】The delivery direction of the experimental liquid distribution pump is variable, you can control the flow direction through the positive and negative connections.
【Removable Pump Head】The pump head can be removed with a single push, which is very convenient for pump tube replacement and cleaning,Working Environment: Temperature 0-40℃, Relative Humidity 003c80%,Flow Rate: 003e 35ml / min-----Optional Color: White, Yellow, Blue, Green.
【Elaborate Design】Our quantitative delivery pump adopts the design without screw clasp, and there are no valves and seals on the top, which is easier to disassemble and maintain, and it is convenient to replace the tube head.
【Widely Used】These small metering pumps have self-priming function and can be widely used in experiments, biochemical analysis, pharmaceuticals, fine chemicals, and biotechnology fields.
【Quantitative Delivery Pump】Our peristaltic pump is to make the fluid in the hose move in a certain direction by repeatedly compressing the elastic tube. The replaceable tube head can adapt to the transportation of different media, which is convenient for multiple types of work.

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Fill-Rite FR310VN 115V/230V 35 GPM Fuel Transfer Pump (Pump Only)

【FEATURES】12V Dc Water Pump positive displacement 3 chambers. 3.0 gallons per minute water flow. The pressure switch is set to 45Psi, 6.74 Max amps..
【SELF PRIMING】The pump self-prime is 9.8 feet (3m) and smooth, silent operation..
【SAFETY FRONT OF MIND】Our pump have certified to CE. Thermally Protected and can run dry without damage..
【WIDELY USED】Great for use in an RV. It is also the best partner of camper, sprayer,garden sprinklers, fertilizers, insect sprays..
【HIGH SERVICE】Enjoy a 4-year warranty. We have a professional team of technical support, if you have any questions, please feel free to contact us, we will reply you within 24 hours.

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TABODD 12GPM Air-Operated Double Diaphragm Pump 115 PSI Aluminum Alloy Dual Diaphragm Air Pump for Chemical Indutrial Liquid Low Viscosity Petroleum Fluids 1/2 Inlet & Outlet

The listing is about Air-Operated Double Diaphragm Pump 12GPM 1/2Inch Inlet And Outlet. The diaphragm pump features an externally serviceable air distribution system and all-bolted construction, with convenient operating, are widely used in various industries, such as petroleum, metallurgy, mining, coating material, printing, paper making, water treatment, automotive etc..
A diaphragm pump (also known as a Membrane pump) is a positive displacement pump that uses a combination of the reciprocating action of a rubber, thermoplastic or teflon diaphragm and suitable valves on either side of the diaphragm to pump a fluid..
Perfect for use with water. Ideal for use with all kinds of industry fluids and some chemical liquids..
This powerful and efficient air operated diaphragm pump is perfect for all your needs in every industry!.

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Car Lift Hydraulic Power Unit (220V) 60hz 1ph

Car lift power unit voltage: 220V.Power : 2.2 KW.Motor:3 HP.Relief Pressure:2950 PSI.Pump Displacement : 2.1 CC/Rev.
Ports :SAE6. Tank material: Steel. Tank size: 2.64gallons. Pump rated flow: ≥4.5 (L / min).
Unit is suitable for most 2 and 4 post lifts found in auto repair shops and dealerships.
Flow and pressure to manifolds allow for use in many applications. Return port returns oil back to tank.
It can be used for lifting the car repair, it can help you to easily lift the car, it will be a good helper in your work.

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Cozyel 12 GPM Air-Operated Air Diaphragm Double Diaphragm Pump Cast Iron 115 PSI Dual Diaphragm Air Pump Petroleum Fluids 1/2 inch Inlet/Outlet QBK-15

Air-Operated Double Diaphragm Pump 12GPM 1/2Inch Inlet And Outlet. The diaphragm pump features an externally serviceable air distribution system and all-bolted construction, with convenient operating, are widely used in various industries, such as petroleum, metallurgy, mining, coating material, printing, paper making, water treatment, automotive etc.
A diaphragm pump (also known as a Membrane pump) is a positive displacement pump that uses a combination of the reciprocating action of a rubber, thermoplastic or teflon diaphragm and suitable valves on either side of the diaphragm (check valve, butterfly valves, flap valves, or any other form of shut-off valves) to pump a fluid..
Rugged construction - resists corrosion for reliable performance and long life.Bolted construction is designed for leak-free fluid handling..
Good abrasion resistance and heat resistance..
Easy access to ball checks and fluid caps for maintenance and repairs..

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Robinair (15300) VacuMaster Economy Vacuum Pump - 2-Stage, 3 CFM

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/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 and 3/8 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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