• H71, SKCJ1 * Wi-on Silent Check Valve
  • H71, SKCJ1 * Wi-on Silent Check Valve
  • H71, SKCJ1 * Wi-on Silent Check Valve
H71, SKCJ1 * Wi-on Silent Check Valve
H71, SKCJ1 * Wi-on Silent Check Valve
H71, SKCJ1 * Wi-on Silent Check Valve
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H71, SKCJ1 * Wi-on Silent Check Valve

The wafer-type silent check valve adopts a fluid-type design, and the head loss is small; the internal spring can accelerate the closing to achieve the silent effect; the metal-to-metal ensures the reliability of the seal; the installation space is small. It can be installed at the outlet of the water pump to avoid water hammer, water hammer and destructive impact, so as to prevent countercurrent and protect the equipment. Widely used in water supply and drainage, fire protection, construction, HVAC, industrial systems.

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Product Details


H71, SKCJ1 * Wi-on Silent Check Valve

The wafer-type silent check valve adopts a fluid-type design, and the head loss is small; the internal spring can accelerate the closing to achieve the silent effect; the metal-to-metal ensures the reliability of the seal; the installation space is small. It can be installed at the outlet of the water pump to avoid water hammer, water hammer and destructive impact, so as to prevent countercurrent and protect the equipment. Widely used in water supply and drainage, fire protection, construction, HVAC, industrial systems.

Technical parameters

Nominal pressure 1.0~1.6MPa
Nominal General 40~250mm
Applicable media Water and weakly corrosive fluids
Applicable temperature 0~80℃
Flange standard GB/T 17241.6GB/T 9113
Test standard GB/T 13927 API598

Typical Installation Schematic

Main Parts and Components Materials

Part Name Valve body Valve seat Spring Disc
Materials Cast iron, ductile iron, cast steel Copper, stainless steel Stainless Steel Cast copper, stainless steel

Main connection dimensions

DN 40 50 65 80 100 125 150 200 250
L 45 55 70 75 95 115 135 160 200
D 90 105 125 140 160 195 215 270 325

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