Dual plate double pump check valve

sump pump check valve


Nominal pressue (MPa) 1.0 1.6
Nominal diameter(mm) 50-1000 50-1000
Test pressure Shell 1.5 2.4
(MPa) Seal 1.1 1.76
Applicable temperature 150
Applicable medium Fresh water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Acids, Alkalis, etc.
Operating mode manual, worm gear, pneumatic, electric, etc.


Design & Manufacture Flange Connection Face to Face Dimension Test & Inspection
API 594 DIN PN10/16/25 API594 API 598


body Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel
Plate Ductile Iron, Carbon Steel, Stainless Steel
Spring Stainless Steel
Hinge Pin Stainless Steel
Plug carbon steel
Body Bearing PTFE
Spring Bearing PTFE
Stop Pin Stainless Steel
Eye Bolt Carbon Steel
Body Seat NBR, EPDM, Viton, Neoprene


Chemicals, air, water, steam, oil, acids, salts ect


1. Small in size, light in weight, compact in structure,easy in maintenance.

2. Two torsion springs are used excreting on each of the pair valve plates,which close the plates quickly And automatically.

3. The quick-close action prevents the medium from flowing back and eliminates water hammer effect.

4. Short body structure length and good rigidity.

5. This valve is tightly sealed, without leakage under the pressure water test.

6. Safe and reliable in operation,high interference-resistance.

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