Rubber Seated Flapper Check Valve

Rubber seated check valve is mainly made up of body, cover and disc, and the disc adopts steel plate coated with rubber. It mainly applies to the water outlet of the water supply and drainage system to prevent backflow and water hammer damage to the pump.
The valve disc is made of EPDM rubber and steel plate by high temperature pressing, with good scour resistance and sealing performance, and the switch life can reach 1 million times. The product has the characteristics of simple structure, convenient maintenance, repair and transportation.

1. Standard

Design & manufacturing BS5153
Face to face BS5153, DIN3202 F6
Flange ends EN1092-2, ASME B16.1/B16.42, AS4087
Inspection & testing EN12266

2.Technical Specification

Size DN50-800
Working Pressure PN10/16
Applicable medium water, sewage, waste water
Applicable temperature 0℃~80℃

3.Main parts material

Part Name Material
Body Ductile Iron
Bonnet Ductile Iron
Disc WCB+EPDM
Shaft SS420
Fasteners Carbon steel/Stainless steel

4. Features

  • Small head loss, not easy to accumulate debris, easy maintenance
  • Quick disc closing and low water hammer pressure
  • Both horizontal and vertical piping can be used, easy to install
  • Unobstructed flow channel and low fluid resistance
  • Good sealing performance
  • Short disc stroke and small impact force when closing the valve
  • Long service life and high reliability

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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