Non-Slam Check Valves

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▶ Non-Slam check Valve _ Cylinder type

Check valve slam occurs after pump stoppage when reverse flow passes by the check valve disc before the valve is fully closed. The reverse flow is stopped instantaneously by the closed check valve, which causes a loud shock wave as well as water hammer in the pipe. DSGE’s Non-slam check type is a cylinder attachment type, and in the event of reverse flow, it quickly shuts off with a counterweight and uses the cushion of the cylinder to prevent slamming.

Category Detail
Valve DesignButterfly Valve type (add. Damping Cylinder, CounterWeight, Tilting Seat, Stepping)
RatingAWWA C207 CLASS-D, CLASS-E
ASME 150LB, 300LB
JIS 10K, 20K
SizeDN300(12") to DN2000(80")
Connection TypeDouble Flanged
Temperature Range-20℃ to 120℃
Main MaterialBody : Carbon Steel, Stainless Steel, Nickel-Aluminum Bronze etc.
Disc : Stainless Steel, Duplex Stainless Steel, Nickel-Aluminum Bronze etc.
Shaft : SUS304, SUS316, 17-4PH, F55, Monel K500 etc.
Seat : Rubber lining, Metal
OperatorHydro Damping Cylinder
ApplicationGeneral Industrial / Petro chemical
Oil & Gas
Steel and Iron Mill
Shipbuilding
Combined / Power Plant
Sea Water
OptionBody Rubber lining
Anti-static device
Catalogue
Fusion bonded epoxy Coating
Fugitive Emission Packing(ISO 15848)
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