Lift Check Valve
Check valves that prevent reverse flow and protect pumps, branches and process lines.
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Check Valves
Silent Check Valve
Silent Check Valve for industrial valve automation and pipeline control applications.
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Product Overview
- The silent check valve is composed of valve body, valve seat, flow guide, valve disc, bearing, spring and other parts. The internal flow channel adopts a streamlined design, resulting in minimal pressure loss. The valve disc has a very short opening and closing stroke, and can close quickly when the pump stops, preventing huge water hammer noise, featuring silent closing. This valve is mainly used in water supply and drainage, fire protection, and HVAC systems. It can be installed at the pump outlet to prevent backflow and water hammer damage to the pump.
Main Technical Parameters
- Nominal Pressure: 1.0~1.6MPa
- Nominal Diameter: 50~350mm
- Working Temperature: 0~80℃
- Applicable Medium: Water and weakly corrosive media
- Flange Standard: GB/T17241.6, GB/T9113
- Test Standard: GB13927
Main Component Materials
No.
Part Name
Material
1
Valve Body
Ductile Iron, Gray Cast Iron
2
Valve Seat
Aluminum Bronze
3
Valve Disc
Stainless Steel, Aluminum Bronze
4
Spring
Stainless Steel
5
Valve Shaft
Stainless Steel
Main External Connection Dimensions
DN
40
50
65
80
100
125
150
200
250
300
350
L
110
113
134
155
170
200
230
279
336
360
381
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