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Industrial Air-Operated Double Diaphragm Pump
1.The diaphragm pump adopts a full bolt structure is easy installation., which can handle fluid without leakage.
2.The diaphragm pump is made of high-quality polypropylene, which has good wear resistance, chemical and heat resistance.
3.The listing is about air-operated double diaphragm pumpQBY4-25L 35 GPM with 1 inch inlet and outlet.
.Polypropylene Seat
.Full bolt structure
.Main Parameter
Specifications:
Type: Double diaphragm
Operation Type: Air-operated
Model: QBY4-25L
Body Material: Aluminum
Inlet/Outlet Port: 1 inch (25 mm)
Air Inlet Size: NPT 1/2 in (12.7 mm)
Average Air Consumption: 38 CFM
Max Flow Rate: 9 m3/h (35 GPM)
Suction: 0-7 m (0-22.9 ft)
Max Suspended Solids: 3 mm (1/8 inch)
Max Head: 75 m (246 ft)
Max Pressure: 120 psi
Max Temp.: 150 ℉
Self-Priming Dry: 3 m (10 ft)
Self-Priming Wet: 4.6 m (15 ft)
Manifold Connection: Single
Valve Type: Ball
Ball Material: Acetal
Check Seat Material: Polypropylene
Package List:
- 1 x Air-Operated Double Diaphragm Pump
- 1 x Product Manual
Sealed ball valve
The pneumatic pump has a ball valve and a fluid cover for easy maintenance and repair. The ""unbalanced"" air valve ensures that there is no stall operation.
Aluminum alloy pump body
The high-quality aluminum alloy die-casting pump body is fixed with full screws,with good sealing performance, not easy to leak, corrosion resistance and high temperature resistance.
High quality double diaphragm
The pneumatic twin-screw pump has a polypropylene valve seat and Santoprene(R) diaphragm, which has good wear resistance,and heat resistance.
Detachable silencer
The pump body is equipped with a silencer to effectively reduce the noise generated by the air pump when it is working.
Customer
2025-06-18 12:50:13
Best pump I tried 2 Electric ones garbage, this is perfect 10 gallons 1 and half minutes
Richard Sherwood
2025-06-13 18:40:05
I purchased this pump and very shortly after the pump began to leak from the seals on the top half of pump. It was not used to pump anything more than clean water and failed miserably. Attempted to contact the seller to no avail. Absolute junk!
Raven
2025-05-28 15:15:59
Perfect
Brandon & Mika Christopher
2025-05-20 12:31:46
Don't waste your money on this pump. No matter what I tried to pump, fuel, water or oil it would hang up and not pump. I had used one of a different brand for years at my other job and it hardly ever had a problem. This one will not empty a barrel of fuel. Complete junk.
gary morris
2025-04-16 16:34:38
Good pumps, make sure air pressure is around 95psi.
tom rinck
2025-03-04 15:03:33
Cheap junk hole in main casing
brian hill
2025-02-11 12:19:46
Pump has already quit functioning.
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