Zhejiang, China
Business Type:
Manufacturer/Factory & Trading Company
Main Markets:
North America, Europe, Southeast Asia/ Mideast
Terms of Payment:
LC, T/T, Western Union
Average Lead Time:
Peak season lead time: one month
Off season lead time: one month
OEM/ODM Availability:
OEM/ODM Service
Sample Available
Overseas Agent / Branch

Wilden Air Pump, Pneumatic Pump, Wilden Pump manufacturer / supplier in China, offering Yonjou Brand Air Operated Double Diaphragm Pump, Concentrated Sulfuric Acid Chemical Centrifugal Pump (IHF), Acid Pump and so on.

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Yonjou Brand Air Operated Double Diaphragm Pump

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Min. Order: 1 Set
Port: Ningbo, China
Production Capacity: 8000 Sets/Year
Payment Terms: L/C, T/T, Western Union
Material: Plastic, Cast Iron, Stainless Steel, Aluminum
Power: Pneumatic
Valve Body Type: Direct Single-Seat
Function: Electronic Type
Certificate: ISO9001:2008
Transport Package: Standard Export Plywood Case Packing

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Basic Info

Model NO.: QBY
Trademark: YonJou
Specification: International
Origin: China
HS Code: 8413110000

Product Description

Yonjou Brand Air Operated Double Diaphragm Pump


1.QBY Air Operated (Pneumatic) Double Diaphragm Pump is a positive displacement pump, adopting compress air, smoke and industry exhaust gas as power source.

2. It has two diaphragms, the compressed air come to the pump body to drive the pump in the constant action of sucking and releasing, so it can pump the liquids easily by this principle. Also it is very safe in dangerous environment since it has no electric motor.

3. QBY air operated double diaphragm pumps can not only transfer the flow liquid, but also can transfer some uneasy flowed medium, with the merits of self-priming pump, diving pump, shield pump, slurry pump and impurity pump etc.


Product details:

Working Principle:Double Diaphragms, Pneumatic
Main applications:       Oil, Water, Chemical, etc.
Driver:Air Operated
Max.permissible fluid temperature:150°C(302°F)
Type of connection:Flange, Thread, Quick coupled
Installation position:Connect to compressor
Casing parts material:C.I, S.S, PP, Aluminium, PVDF, PTFE linning
Maximum grain diameter:10mm (3/8inch)
Maximum drive rating: 7kgf/cm2
Maximum caliber:  100mm(4inch)
Maximum discharge-side pressure:6kgf/cm2
Maximum head:50m(164ft)
Flow rate range:  0.8-30m3/h(3.5-132US.GPM)


Performance Data: 









Head (m)


Grain Dia.


Pressure (Kgf/cm2)




Yonjou Brand Air Operated Double Diaphragm Pump

Yonjou Brand Air Operated Double Diaphragm Pump
Yonjou Brand Air Operated Double Diaphragm Pump
Yonjou Brand Air Operated Double Diaphragm Pump

Yonjou Brand Air Operated Double Diaphragm Pump


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