The Best Diaphragm Pumps

Looking for the best Diaphragm Pumps?

Discover now our comparison of the best Diaphragm Pumps. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Diaphragm Pumps are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Diaphragm Pumps in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

No. 1

Air 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

【INDUSTRIAL QBY4-25L】Material:aluminum; Dissepiment Material:Nitrile Bubber,Fluorine Rubber,Chloroprene Rubber; Type: double diaphragm; Operation Type: Air-operated; Inlet/Outlet Port Size: 1 inch (25mm); Air Inlet Size: NPT 1/2 inch (12.7mm); Flow Rate: 35 GPM; Max Head Lift: 275 ft(84 M); Suction: 23 ft(7M).Can not use for corrosive liquid.
【MAXIMUM HEAD】Air-Operated Double Diaphragm Pump have top quality, a double-acting seal that delivers better performance. 1/2 inch air inlet with NPT fitting uses standard shop air for easy operation.275.59FT/84M, Max Temp : 150 ℉, Max Pressure: 120 PSI.
【EXCELLENT PERFORMANCE】Double Diaphragm Pump 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.
【RUGGED CONSTRUCTION】 Diaphragm Pump resists corrosion for reliable performance and long life. Bolted construction is designed for leak-free fluid handling.
【WIDELY USE】The diaphragm pump with convenient operating are widely used in various industries, such as petroleum, metallurgy, mining, coating material, paint, printing, paper making, water treatment, automotive etc.

No. 2

15 Consomer Reviews

Air 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

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
RELIABILITY: Diaphragm pump unbalanced air valve ensures no-stall operation.Air diaphragm pump good abrasion resistance, chemical resistance, and heat resistance
SAFETY: Air diaphragm pump bolted construction for leak-free fluid handling. ease of use/comfortability
VARIOUS INDUSTRIES: Diaphragm pump can petroleum, metallurgy, mining, coating material, printing, paper making, water treatment, automotive and other chemical industries

No. 3

5 Consomer Reviews

Pneumatic double diaphragm pump, 1.5 inch inlet and outlet, polypropylene body, 35GPM and Max 120pSI, chemical pump bleaching pump oil transfer pump

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.
Premium Double Teflon Diaphragms: with an Extra Set of Diaphragms Our air-operated double diaphragm pump adopts Teflon diaphragms, durable, corrosion-proof, and long-lasting. Max. Temperature: 150 ℉/66 ℃; Max. Pressure: 120 psi; Max. Flow Rate：35 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.
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, high viscosity and low viscosity liquids can be extracted.
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.

No. 4

VEVOR 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

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!
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!
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.

No. 5

FAHKNS Air-Operated Double Diaphragm Pump 1 Inch Inlet Outlet Aluminum 35 GPM Max 115 PSI, Industrial Use,Nitrile Diaphragm, QBY4-25L

PREMIUM DOUBLE DIAPHRAGM: Material:aluminum; Dissepiment Material:Nitrile Bubber,Fluorine Rubber,Chloroprene Rubber; Type: double diaphragm; Operation Type: Air-operated; Inlet/Outlet Port Size: 1 inch (25mm); Air Inlet Size: NPT 1/2 inch (12.7mm); Flow Rate: 35 GPM
SUPER PNEUMATIC PERFORMANCE: Air-Operated Double Diaphragm Pump have top quality, a double-acting seal that delivers better performance. 1/2 inch air inlet with NPT fitting uses standard shop air for easy operation.275.59FT/84M, Max Temp : 150 ℉, Max Pressure: 115 PSI
SOLID LEAK -PROOF STRUCTURE: Diaphragm Pump resists corrosion for reliable performance and long life. Bolted construction is designed for leak-free fluid handling
EXCELLENT PERFORMANCE: Double Diaphragm Pump 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
WIDELY USED: The diaphragm pump is easy to operate and widely used in paper making, water treatment, automobile, coating, paint, printing, petroleum, metallurgy, mining and other industries

SaleNo. 6

Happybuy Air-Operated Double Diaphragm Pump 1 inch Inlet Outlet Aluminum 35 GPM Max 120PSI, Nitrile Diaphragm, QBY4-25L-1inch-35

Premium Double Nitrile Diaphragms: Our air-operated double diaphragm pump adopts nitrile diaphragms, durable, corrosion-proof, and long-lasting. Max. Temperature: 150 ℉/66 ℃; Max. Pressure: 120 psi; Max. Flow Rate: 39.6 GPM; Max Head Lift：275.6 ft/84 m.
Sturdy & Leak-proof Construction: The diaphragm pump housing is made of aluminum alloy material, bolted against leakage, sturdy, and corrosion-proof for long-time use.
Excellent Air-operated Performance: Inlet/Outlet Port Size: 1 inch; Air Inlet Size: FNPT 1/2 inch. A high-quality glyd ring, the double-acting sealing, strengthens air performance.
Unique & Professional Designs: Our double diaphragm pump features an externally available air distribution system. The modular air valve is stainless. This low pulsation air valve provides smooth and rapid changeover for increased efficiency and minimizes downtime.
Wide Applications: This diaphragm pump can handle various fluids, such as waste oil, alcohol, hydraulic fluid, gasoline, diesel, detergent, drink, and so on. It is widely used in many industries, such as petroleum, metallurgy, mining, coating, printing, water treatment, and automobile.

No. 7

Vestapomp Air Operated Diaphragm Pump - New Version - Diaphragm Pump Air - Waste Oil AODD - Double Pneumatic Transfer (1 inch Discharge, Aluminum Body + Nitrile 40 GPM 100 PSI)

"MADE IN TURKEY 45+ Years" Last 12 months in Amazon (US) 500+ customers has bought 600+ pumps. Vestapomp Air Operated Double Diaphragm pumps are made with high-quality, durable materials ensures a long lifespan and industrial-quality build for reliable performance for 45+ years, customers in 45+ countries.
"EXPROOF & SAFE TO USE" Air powered transfer pumps are designed to handle tough industrial environments with ease, can operate dry without any liquids, and can handle solids up to certain dimensions depending on discharge size like 1" inch, 1/2" inch, 3/4 inch or 2" inch, making it a versatile and reliable solution for all your pumping needs.
"EASY ACCESS TO SPARE PARTS" Being and industrial pump manufacturer for 45+ years, our membrane pumps / drum pumps ensures hassle-free maintenance, easy assembly, smooth installation and downtime reduction, saving you time and money in the long run, while also ensuring uninterrupted operation.
"OPERATED WITH AIR WITHOUT ELECTRICITY" This air operated diaphragm pump saves you money on energy costs and operating free from electric cables and an electric motor while providing efficient, powerful performance, making it a cost-effective choice for all your pumping needs.
"VERSATILE LIQUID TRANSFER PUMP" AODD pump is ideal for transferin various fluids, including waste oil transfer, diesel transfer, chemicals transfer and other fluids, with its ability to handle many viscosities, making it the go-to choice for all your liquid transfer needs, whether it be for personal, industrial or commercial use.

No. 8

Cozyel 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

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.
Good abrasion resistance and heat resistance.
Rugged construction - resists corrosion for reliable performance and long life.Bolted construction is designed for leak-free fluid handling.
Easy access to ball checks and fluid caps for maintenance and repairs.

No. 9

Air-Operated Double Diaphragm Pump, 1/2 in Inlet & Outlet, QBK-15, 12 GPM & Max 120PSI, PTFE Diaphragm Pneumatic Transfer Pump for Petroleum, Diesel, Grease & Low Viscosity Fluids

WIDE COMPATIBILITY: Material: cast iron, aluminum alloy, stainless steel. Inlet/Outlet: 1/2 inch; Inlet size: 1/4 inch; Gas nozzle: 0.32 inch; Maximum flow rate flow: 2 m3/h (12 GPM); Suction: 16.4 ft (5M); Maximum head: 226 ft (69 M); Maximum PSI: 115 psi
EXCELLENT EFFICIENCY:Double diaphragm pump motor design delivers optimum air efficiency.Double Diaphragm:PTFE, Nitrile Rubber and Polychloroprene
RELIABILITY: Diaphragm pump unbalanced air valve ensures no-stall operation.Air diaphragm pump good abrasion resistance, chemical resistance, and heat resistance
STRONG CONSTRUCTION : The air operated diaphragm pump body is made of plastic, cast iron, stainless steel and aluminum alloy for corrosion resistance and long service life
WIDE COMPATIBILITY: The diaphragm pump can be used in petroleum, metallurgy, mining, paint, printing, paper making, water treatment, automotive and other chemical industries
CUSTOMER SERVICE: Please note: After receiving the diaphragm pump, please check whether the fasteners are tightened, the transportation process may send loose, please tighten the screws first. After use if you find the pump has leakage or other problems, please be sure to contact us, we will help you to replace or solve. Maintenance: It is recommended that you regularly lubricate the moving pin group with lubricant and do regular maintenance, which can prolong the service life of the pump

No. 10

Cozyel Air-Operated Diaphragm Pump Double Diaphragm Pump 1 inch Inlet & Outlet, Air Diaphragm Pump Dual Diaphragm Air Pump Aluminum 35 GPM Max 120PSI, QBY4-25L

[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)
[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.
[EXCELLENT CONSTRUCTION]--Rugged construction - resists corrosion for reliable performance and long life. Bolted construction is designed for leak-free fluid handling.
[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.
[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.

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Last update on 2025-04-04 / Affiliate links / Images from Amazon Product Advertising API

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