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Industrial Double door check valve China factory supplier Manufacturer

Short Description:

 Double door  check valve,double door check valve

WRAS,ACS certified for drinking water,potable water

DN50-DN1000,2″-40″

PN10/PN16,ANSI Class125/150

Flange ASME B16.5,ASME B16.47,EN1092-1 

NORTECH is one of the leading China Double door  check valve Manufacturer & Supplier.


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What's the Double door check valve ?

The Double door  check valve is an all purpose non return valve that is much stronger, lighter in weight and smaller in size compared to a conventional swing check valve or life check valve.it employs two spring-loaded plated hinged on a central hinge pin. When the flow decreases, the plates close by torsion spring action without requiring reverse flow.This design offers the twin advantages of No Water Hammer and Non Slam simultaneously. All features put together make the Dual Plate Check Valve one of the most efficient design. 

we have Double door  check valve with wonderful sealing performance,but is only for low pressure and normal temperature,because of the limit of rubbers' characteristics.

and also the metal seat dual plate check valve for severe working conditions,high temperature,high pressure,hard working conditions.

Main features of the Double door check valve

Features and benefits of rubber seat dual plate check valves.

  • *Rubber vulcanised on the seat groove,good sealing performance.
  • *Only Check valve which can be installed for flow upside down due to spring assisted closure.
  • *Low pressure drop and reduced energy loss irrespective of pressure ratings.
  • *Efficient and positive sealing under most flow and pressure conditions. Valve close before flow reversal.
  • *Long time and trouble-free operation.
  • *WRAS Certified,ACS Certified for Water industry,drinking water,potable water

Technical specifications of Double door check valve

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Product Show: Double door check valve

resilient seat dual plate check valve
dual plate check valve DN700-10

Applications of Double door check valve

This kind of  Double door  check valve  is widely utilized in pipeline with liquid & other fluids. 

  • *Water supply and treatment
  • *HVAC/ATC
  • *Chemical/Petrochemical
  • *Pulp and Paper Industry
  • *Industrial environmental protection

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