Gold Member Since 2011
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Zhejiang Yonjou Technology Co., Ltd.

Pneumatic Diaphragm Pump, Air Operated Diaphragm Pump, Alummium PP PVDF Diaphragm Pump manufacturer / supplier in China, offering Marine Diaphragm Submersible Pump, Yonjou Brand High Quality Submersible Slurry Pump, Yonjou Brand Submersible Centrifugal Water Pump and so on.

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Marine Diaphragm Submersible Pump

Purchase Qty.:
1-9 10+
FOB Unit Price: US $500 US $200
Purchase Qty. (Sets) FOB Unit Price
1-9 US $500
10+ US $200
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Port: Ningbo, China
Production Capacity: 8000sets/Year
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: QBY QBK
  • Power: Electric
  • Function: Electronic Type
  • Performance: No Leak
  • Color: Blue /Green /Black /White/ Red
  • Certificate: ISO9001:2008/Ce
  • Transport Package: Standard Export Plywood Case Packing
  • Origin: China
  • Material: Cast Iron
  • Valve Body Type: Diaphragm
  • Diaphragm Material: Water , Seawater, Chemicial , Oil ......
  • Flow Rate: Constant Pump
  • Customized: Customized
  • Trademark: YonJou
  • Specification: International
  • HS Code: 8413110000
Product Description

Marine Diaphragm Submersible PumpSummarize:
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)




Marine Diaphragm Submersible Pump

Marine Diaphragm Submersible Pump
Marine Diaphragm Submersible Pump
Marine Diaphragm Submersible Pump
Marine Diaphragm Submersible Pump



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Ms. Marcia Chen
Sales Director
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