Non-Slam Check Valves
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제품
▶ 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 Design | Butterfly Valve type (add. Damping Cylinder, CounterWeight, Tilting Seat, Stepping) |
Rating | AWWA C207 CLASS-D, CLASS-E ASME 150LB, 300LB JIS 10K, 20K |
Size | DN300(12") to DN2000(80") |
Connection Type | Double Flanged |
Temperature Range | -20℃ to 120℃ |
Main Material | Body : 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 |
Operator | Hydro Damping Cylinder |
Application | General Industrial / Petro chemical Oil & Gas Steel and Iron Mill Shipbuilding Combined / Power Plant Sea Water |
Option | Body Rubber lining Anti-static device Catalogue Fusion bonded epoxy Coating Fugitive Emission Packing(ISO 15848) |