Rubber / Thermoplastic Casting Steel Diaphragm Pump

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Air diaphragm pump(also know as a Membrane pump, air operated double diaphragm pump(AOOD) or pneumatic diaphragm pump)that uses a combination of the reciprocating action of a rubber,thermoplastic or teflondiaphragm and suitable valves either side of the diaphragm (check valve,butterfly valves,flap valves,or any other form of shut-off valves) to pump a fluid.

  • Place of Origin:China
  • Brand Name:BSK
  • Model Number: BSKA25AL-P99-A
  • Min. Order Quantity: 10 Unit(s)
  • Price Term: FOB
  • Port: Guangzhou/Shenzhen
  • Price: Negotiable
  • Payment Terms:T/T
  • Production Capacity: 1000 Unit(s) Per Month
  • Guarantee: one year



Product Description:


Air Inlet


Fluid Outlet


Fluid Inlet


Max. Flow


Max. Head


Max. Self-priming Lift (dry)


Max. Air Pressure


Max. Particle Diameter


Max. Installation Dimension









Packaging & Delivery


Packaging Detail:

plywood case/carton per diaphragm pump

Delivery Detail:

5 days from receiving payment (according to your order quantity)





Air Diaphragm Pump
1. Non leakage
2. Good self priming performance
3. Convey all kinds of medium
4. Material:Cast steel,Alu,SS,PP



A 2 5 X X - X X X - X   (model selection)


Form of pipe mouth:A-BSP B-NPT(F) C-Flange  

Diaphragm material:9 – Santoprene H – Hytrel   T - PTFE/Santoprene  

Ball material:9 -Santoprene H – Hytre T – PTFE A - Acetal  

Ball seat material:P/K –Polypropylene/Kynoar SS –Stainless Steel  

Pump material: SS –Stainless Steel AL –Aluminum Alloy   CI- Carbon Steel P/K –Polypropylene/Kynoar



Main Performance Parameters  


No. Parameter Names Units Reference Values  

1 Max. Working Air Pressure Mpa 0.83  

2 Max. Flow l/min 135  

3 Max. Head m 70  

4 Max. Fluid Output Pressure Mpa 0.83  

5   Max. Particle Through   Diameter   mm 3  

6 Weight kg   9.5/12.5 ( PP/KV ) /9.5 (AL)/   14.5(SS/CI)  

7 Noise Level db <85  


Maximum Applied Temperature Limits (diaphragm / ball / seal material)  



Acetal ···············································40°-         150°F        (4.4- 65.5°C)  

Santoprene························································································-40°- 225°F (-40°- 107.2°C)   Teflon··································································································40°- 220°F (4.4°- 104°C)   Nitrile·······································································

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Tel: 86-20-88681234
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Steel Diaphragm Pump Market
1111 li Intzxczxchoes Cezxczal, Wezt Huzzvn Rd, Guangzhou, Guangdong, China (Mainland)
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