Silent Check Valve

Silent check valve consists of body, seat, guide body, disc, bearing and spring and other parts. The internal flow channel adopts streamline design, the pressure loss is small, the valve disc opening and closing stroke is very short, when the pump stops, it can be quickly closed to prevent huge water hammer sound, forming silent effect. The valve is mainly used for water supply & drainage, fire protection, HVAC system, can be installed at the pump outlet, to prevent the media backflow and water hammer damage to the pump.

1. Standard

Design & manufacturing EN12334
Flange EN1092-2, BS4504
Inspection & testing EN12266

2.Technical Specification

Size DN50-600
Working Pressure PN10/16
Applicable medium water, sewage, waste water
Applicable temperature 0℃~80℃

3.Main parts material

Part Name Material
Body Ductile Iron
Disc Q235
Shaft Stainless steel
Spring Stainless steel
Seat EPDM/NBR

 

4. Features

  • The flow channel inside the valve body is straight and tends to streamline to improve the flow of the medium in the pipeline.
  • Short movement distance of valve disc opening and closing, fast opening and closing, low water hammer, silent effect.
  • The valve body is cleverly designed, reasonable structure, light weight, convenient installation and good airtight performance.

5. Application

  • Watersupply, sewage treatment industry
  • Fire fighting industry
  • Constructionindustry
  • Mining, steel industry
  • Metallurgy plant, power plant
  • Oil, chemical industry
  • Textile, pharmaceutical industry

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