VEVOR Air-Operated Double Diaphragm Pump 25.4mm(1 inch) Inlet/Outlet 113 L/min(30GPM) Polypropylene Max 7 bar(100PSI) for Chemical and Industrial Use
- Premium Double PTFE Diaphragms: Our air-operated double diaphragm pump adopts PTFE diaphragms, durable, corrosion-proof, and long-lasting. Max. Temperature: 150 ℉/66 ℃; Max. Pressure: 100 psi; Max. Flow Rate:79.6 GPM; Max Head Lift:70 m.
- Sturdy & Leak-proof Construction: The diaphragm pump housing is made of polypropylene material, bolted against leakage, sturdy, and corrosion-proof for long-time use.
- Excellent Air-operated Performance: Inlet/Outlet Port: DN25PN10 Flange Connection; 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.
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About this item


- Premium Double PTFE Diaphragms
- Sturdy & Leak-proof Construction
- Excellent Air-operated Performance
- Unique & Professional Designs
- Premium Tough Quality
- Incredibly Low Prices
- Fast & Secure Delivery
- 30-Day Free Returns
- 24/7 Attentive Service
- Premium Tough Quality
- Incredibly Low Prices
- Fast & Secure Delivery
- 30-Day Free Returns
- 24/7 Attentive Service







- Model: QBY4-25PP
- Type: Double diaphragm
- Body Material: Polypropylene
- Inlet Port: DN25PN10 Flange Connection
- Outlet Port: DN25PN10 Flange Connection
- Air Inlet Size: 1/2 inch (12.7 mm)
- Max Flow Rate: 79.2 GPM
- Suction: 0-5 m (0-16.4 ft)
- Max Suspended Solids: 3 mm (1/8 inch)
- Max Head: 70 m
- Max PSI: 100 psi
- Self-Priming Dry: 3 m (10 ft)
- Self-Priming Wet: 4.6 m (15 ft)

- 1 x Air-Operated Double Diaphragm Pump QBY4-25PP
- 1 x Product Manual

- Premium Tough Quality
- Incredibly Low Prices
- Fast & Secure Delivery
- 30-Day Free Returns
- 24/7 Attentive Service
- Premium Tough Quality
- Incredibly Low Prices
- Fast & Secure Delivery
- 30-Day Free Returns
- 24/7 Attentive Service

- Premium Double PTFE Diaphragms
- Sturdy & Leak-proof Construction
- Excellent Air-operated Performance
- Unique & Professional Designs







- 1 x Air-Operated Double Diaphragm Pump QBY4-25PP
- 1 x Product Manual

- Model: QBY4-25PP
- Type: Double diaphragm
- Body Material: Polypropylene
- Inlet Port: DN25PN10 Flange Connection
- Outlet Port: DN25PN10 Flange Connection
- Air Inlet Size: 1/2 inch (12.7 mm)
- Max Flow Rate: 79.2 GPM
- Suction: 0-5 m (0-16.4 ft)
- Max Suspended Solids: 3 mm (1/8 inch)
- Max Head: 84 m (275.59 ft)
- Max PSI: 120 psi
- Self-Priming Dry: 3 m (10 ft)
- Self-Priming Wet: 4.6 m (15 ft)
Reliable Double Diaphragm Pump for Efficient Fluid Transfer
The air-operated double diaphragm pump is a super handy tool to move liquids like oil, water, and gas quickly. It completes the work very quickly and saves you time. Made of strong material, this 120 PSI diaphragm pump is built to last. It is lightweight and easy to carry anywhere you want. The PTFE diaphragms of this pump can handle all sorts of liquid without getting damaged. One of the coolest features of this polypropylene diaphragm pump is that it is easy to use. You just set it up and start working. It is strong and can handle different kinds of jobs.
Superior Air Operated Performance
The 120 PSI diaphragm pump is a special tool that is very efficient in moving liquids from one place to another. Inside the pump, there are glyd rings and double-acting sealing, which work together to optimize air usage and ensure smooth flow. With these components, the pump operates efficiently and can continuously move large amounts of liquid without interruption for extended periods of time. So, this 1-inch inlet/outlet diaphragm pump is an efficient and reliable choice for liquid transportation.
User-Friendly Design Ensures Safety
The 30 GPM diaphragm pump is built to keep you safe while working. This pump is designed to be simple, so anyone can use it without feeling confused. Its construction meets all the safety standards and is reliable for every job. One of the best parts of this industrial-use diaphragm pump is the size of its opening. It has an inlet and outlet, which is like a door where liquid goes in and out. With a professional air-operated design, you can move liquid easily. This design is very valuable because it does not need electricity to work. You can use it anywhere, even if there are no power outlets nearby.
Powerful Motor to Monitor Pressure
Equipped with a powerful motor, this chemical use diaphragm pump can move a lot of liquid very fast. It can move liquid up to 20 gallons per minute. The 1-inch inlet/outlet diaphragm pump can also handle a lot of pressure from liquid or air. It can take up to 120 PSI, which is a heavy pressure.
It can work in places where other pumps might not be strong enough. Users use this pump in hot weather because it still works well up to 150 degrees Fahrenheit. With a balanced air valve, your pump keeps working smoothly. It is strong and even handles tough jobs with an efficient motor.
Durable & Leak-Proof Construction
Constructed with durable or sturdy polypropylene material, this industrial use diaphragm pump is designed to withstand heavy use without compromising on quality. Its bolted construction makes sure that liquid stays contained and prevents any leakage.
With rust- and tear-resistant capacity, this air-operated double diaphragm pump can handle tough jobs without wearing down or malfunctioning. You won't have to worry about frequent replacements or purchasing new pumps, as this one will consistently deliver reliable performance. You get the job done efficiently and effectively every time you use this pump.
Easy to Use & Maintain
You can easily operate and maintain the polypropylene diaphragm pump without any extra effort. The pump is a user-friendly design and made to be very easy to set up. You don't need to read complex instructions or figure out complicated parts. You can get started quickly and do your work without any trouble. After your job is done, the user cleans it with just clothes or water. So, you can spend more time working and less time cleaning. You can carry and store anywhere you want without risk of breakage.
Versatile — Perfect for Industrial Work
One of the greatest advantages of this polypropylene diaphragm pump is its versatility. It can efficiently spray chemicals within large ships and easily handle tasks such as pumping fluid into bus tires or changing hydraulic fluid. Whatever its waste oil, gasoline, or detergents, this 30 GPM diaphragm pump can effectively move a variety of liquids. Its compact size and lightweight design make it portable and convenient to carry wherever needed.

