Pump With Diaphragms of 2025
Best Choice1
CozyelCozyel Air-Operated Diaphragm Pump Double Diaphragm Pump 1-1/2 inch Inlet & Outlet, Air Diaphragm Pump Dual Diaphragm Air Pump Aluminum Alloy 44 GPM Max 115PSI, QBK_40L
Main highlights- 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.
- Air-Operated Double Diaphragm Pump 12GPM 1-1/2Inch 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.
9.8Exceptional
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Value for Money2
PEAYLIAir Operated Double Diaphragm Pump QBY4-25L 1 inch Outlet 35 GPM Pneumatic Transfer Max 120 PSI Industrial Use Chemical Waste Oil Dual Dissepiment Nitrile Fluorine Rubber by Cast Iron Aluminum Alloy
Why we love it
Durable construction for long-lasting performance.
Efficient operation with minimal downtime.
Versatile use across multiple industries.
9.7Exceptional
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3
VEVOR18% OffVEVOR Air Operated Double Diaphragm Pump, 44GPM, Max 115PSI Air Waste Oil Pneumatic Transfer Pump with 2 Extra Diaphragms, 1-1/2 inch Inlet & Outlet Aluminum Alloy Diaphragm Pump for Diesel Grease Oil
Main highlights- Solid & Leak-Proof Design: Our air-operated double diaphragm pump housing is crafted with aluminum alloy and secured with a full-bolted structure, promising an unwavering bond between components for top-notch sealing. Bid farewell to oil lubrication and fear of dry running, and our pump is designed for enduring performance and rigorous, long-term use. Get ready to experience a pump that's as tough as your demands!
- Premium PTFE Diaphragm: Our air operated diaphragm pump features state-of-the-art dual-layer PTFE diaphragms for exceptional corrosion resistance. These diaphragms excel in the harshest environments, handling corrosive fluids with unparalleled efficiency. Max. Flow Rate: 44 GPM. Max. Pressure: 115 PSI. Max. Head Lift: 226 ft/69 m. Ready to experience the difference? Let's power up your productivity!
- Low Noise Operation: Our air transfer pump comes with an advanced silencer that minimizes noise to the lowest possible level, not only enhances the comfort of your working environment but also significantly reduces vibration and noise impact on the equipment itself, extending its lifespan. The detachable design for effortless maintenance and cleaning reduces your upkeep costs. Enjoy a quieter and more efficient workspace!
- Fit for Multiple Fluids: Our waste oil pump is capable of processing a wide array of fluids from waste oil, alcohol, hydraulic oil, gasoline, diesel, and detergents to beverages. Its extensive applications span industries including petroleum, metallurgy, mining, coatings, printing, water treatment, and automotive. Whatever your industry, whatever your fluid, our diaphragm pump is engineered to handle it with unmatched efficiency and reliability.
- Exceptional Pneumatic Performance: Elevate your fluid handling with our air diaphragm pump! It boasts standard inlet/outlet dimensions of 1.5 inches and an air inlet size of FNPT 1/4 inch, designed to seamlessly integrate with your existing pipelines and fittings, enhancing its pneumatic performance. Embrace the power of professional pneumatic design in your operations today!
9.6Exceptional
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4
PEAYLIAir Operated Double Diaphragm Pump QBK-15 1/2 inch Outlet 12 GPM Pneumatic Transfer Max 115 PSI Industrial Use for Chemical Waste Oil Dual Diaphram PTFE Nitrile Rubber by Plastic and Stainless Steel
Main highlights- VARIOUS INDUSTRIES: Diaphragm pump can petroleum, metallurgy, mining, coating material, printing, paper making, water treatment, automotive and other chemical industries
- SAFETY: Air diaphragm pump bolted construction for leak-free fluid handling. ease of use/comfortability
- RELIABILITY: Diaphragm pump unbalanced air valve ensures no-stall operation.Air diaphragm pump good abrasion resistance, chemical resistance, and heat resistance
- INDUSTRIAL QBK-15: Material:Cast iron,aluminum alloy,Stainless steel.Inlet Port: 1/2 inch;Outlet Port: 1/2 inch ;Air inlet size: 1/4 inch;Gas Nozzle: 0.32 inch;Max Flow Rate: 2 m3/h (12 GPM);Suction: 16.4 ft (5M);Max Head: 226 ft (69 M);Max PSI: 115 psi
- EXCELLENT EFFICIENCY: Double diaphragm pump motor design delivers optimum air efficiency.Double Diaphragm:PTFE, Nitrile Rubber and Polychloroprene
9.5Excellent
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5
DollateDollate Air Operated Double Diaphragm Pump 1/2 nch Inlet/Outlet，QQBK-15 12 GPM Dual Diaphram, Air Diaphragm Pump Dual Diaphragm Air Pump 12 GPM Max 115PSI，Nitrile, Pneumatic Waste Oil Transfer Pump
Main highlights- WIDELY USED: diaphragm pumps can handle a variety of fluids, such as waste oil, petrol, beverages and so on. It is widely used in various industries such as petroleum, metallurgy, printing, water treatment and automobile, etc
- STURDY AND LEAK-PROOF STRUCTURE: The diaphragm pump casing is made of aluminium alloy and is fixed with full bolt structure to ensure a strong bond between components, which is leak-proof, sturdy and corrosion-resistant for long term use
- PREMIUM PTFE DIAPHRAGMS: Air-operated diaphragm pumps feature double-layer PTFE diaphragms for reliability and the ability to handle viscous or abrasive fluids. Efficiently handles corrosive fluids
- INDUSTRIAL QBK-15: Material:Cast iron,aluminum alloy,Stainless steel.Inlet Port: 1/2 inch;Outlet Port: 1/2 inch ;Air inlet size: 1/4 inch;Gas Nozzle: 0.32 inch;Max Flow Rate: 2 m3/h (12 GPM);Suction: 16.4 ft (5M);Max Head: 226 ft (69 M);Max PSI: 115 psi
- ATTENTION: The transport process may cause some loosening of the fasteners, which is normal, after receiving the diaphragm pump, please check and tighten each screw to avoid leakage
9.4Excellent
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6
Etespie10% OffIndustrial Diaphragm Water Pump 2088-594-154, 198GPH, 115V AC, 1/2in, Portable Electric Utility Water Pump 45PSI/3.1Bar, 3.3GPM/11.4LPM, Fit for Beverage and Water Applications, Water Pressure
8.0 Easy installation8.0 Vacuum strength8.0 Noise level9.3Excellent
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7
emageneEMAGENE Air-Operated Double Diaphragm Pump, 1/2 inch inlet and outlet, polypropylene body, 9GPM and Max 100pSI for solvent and Industrial Use
Main highlights- Premium Double Teflon Diaphragms: Our air-operated double diaphragm pump adopts Teflon diaphragms, durable, corrosion-proof, and long-lasting. Max. Temperature: 150 ℉/66 ℃; Max. Pressure: 100 psi; Max. Flow Rate：9 GPM; Max Head Lift：226.4 ft/69 m.
- MAIN FEATURES: no lubrication, medium and pump parts completely separated, delivery toxic, medium will not corrode leakage, low energy consumption, small gas consumption, Modular design, low maintenance costs, long life, good heat resistance.
- HOW IT WORKS: pneumatic diaphragm pump to Compressed air power, diaphragm installed in the pump's two symmetrical chambers, the central connecting rod will be integrated as a whole together. The Compressed air enters the valve through the inlet of the pump and is directed through the valve body into one chamber to facilitate movement of the diaphragm while Compressed air gas from the other chamber.
- APPLICATIONS: Conveying fluid and viscous liquids, such as waste oil, ethanol, gasoline, engine oil, diesel oil, mud, lime slurry, sewage, cement, antifreeze EB solvent-2-butoxyethanol, industrial coating DEF is purified from urea CNC coolant, acetone, gear lubricant, isopropanol. Widely used in petroleum, metallurgy, mining, paint, printing, water treatment, automotive and other industries.
- ADVANTAGES: no spark, no liquid suction will not damage the pump, flow and head can be adjusted by valve switch size, suction can be adjusted by pressure, can be immersed in the medium work, low viscosity liquids can be extracted.
9.2Excellent
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8
MXBAOHENGMXBAOHENG Air-Operated Diaphragm Pump Pneumatic Double Diaphragm Pump 3/8" Inlet & Outlet Transfer Pump 1/4" Air Inlet for Chemical Industrial Use (18L/min)
Main highlights- This diaphragm pump has simple structure, few wearing parts, convenient installation and maintenance. The medium conveyed by the pump will not touch the moving parts such as the valve, linkage, etc., unlike other types of pumps due to the wear of rotors, pistons, gears, blades and other parts. Decrease performance gradually.
- Pneumatic diaphragm pumps have six advantages: reliable quality, long service life, low noise, low vibration, never crashing, and fine workmanship. They can pump flowing liquids and transport some difficult-to-flow media.
- NOTE: This diaphragm pump can be used to pump chemical liquids, and the diaphragm used is PTFE acid and alkali corrosion resistant diaphragm. But because the pump is aluminum alloy, so it is best not to pump strong acid and alkali substances that will react with aluminum alloy.
- NOTE: The pump can not be used when empty, there is no liquid inside for a long time when pumping will burst, such as the barrel inside the material is not available, empty, will lead to bursting; there is too much pressure, the diaphragm pump is the best air pressure is 4 kilograms, the maximum 6 kilograms, more than then the diaphragm pump will be damaged.
- It is easy to use, reliable in work, and only needs to open and close the gas valve. Even if the pump runs without medium for a long time due to unexpected circumstances or suddenly stops the pump, it will not be damaged. Once overloaded, the pump will automatically stop. Self-protection performance, when the load returns to normal, it can automatically start operation;
9.1Excellent
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9
CozyelCozyel Air-Operated Double Diaphragm Pump - 1 Inch Inlet & Outlet, Aluminum, 35 GPM Max 120PSI, QBY4-25L
Main highlights- [VERSATILE USE]--The diaphragm pump with convenient operating are widely used in various industries, such as petroleum, metallurgy, mining, coating material, printing, paper making, water treatment, automotive etc.
- [UNIQUE DESIGN]--Features an externally serviceable air distribution system and all-bolted construction. Modular air valve is stall-free, this low pulsation air valve provides smooth and rapid changeover for increased efficiency and minimizes down time.
- [Quality Performance]--Maximum Head: 275.59FT/84M, Max Temp : 150 ℉, Max Pressure: 120PSI. Top quality glyd ring, a double-acting seal that delivers better performance. 1/2 inch air inlet with NPT fitting uses standard shop air for easy operation.
- [MAIN PARAMETER]--Material: Aluminum; Diaphragm Material: Nitrile; Type: Double diaphragm; Operation Type: Air-operated; Inlet/Outlet Port Size/Standard 1 inch (25 mm); Air Inlet Size: NPT 1/2 inch (12.7 mm)
- [EXCELLENT CONSTRUCTION]--Rugged construction - resists corrosion for reliable performance and long life. Bolted construction is designed for leak-free fluid handling.
9.0Excellent
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10
SHURFLOShurflo 2088-313-145 Diaphragm Pump with Fin Cooled Motor (12VDC)
Main highlights- Product Number: 2088-313-145.
- Poly Housing 12 Volt DC.
- 3.6 GPM open flow, Viton valves, Santoprene diaphragm, 45 PSI Demand Switch 1/2" MSPT ports (1/2" - 14 National American Straight Pipe Thread, requires SHURflo swivel type fittings).
8.9Very Good
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