Wafer Silent Check Valves - Cast Iron, Carbon Steel & Stainless Steel
Keckley wafer silent check valves are suited for liquid applications only. For applications requiring natural gas, steam, or vacuum service please refer to our double disc wafer check valve.
Wafer silent check valves are relatively short in design and provide a low cracking pressure. The spring automatically closes the disc at zero flow, which prevents flow reversal and water hammer. The disc is fully guided at the top and bottom to prevent binding and cocking. The valve disc will open with less than 1/2 pound per square inch pressure. All sizes feature discs which lift 1/3 of an inch from their seats for every 1 inch of pipe size.
Keckley wafer silent check valves are designed for a minimum open area equal to 110% of the pipe size. Keckley offers cast iron wafer silent check valves, carbon steel wafer silent check valves, stainless steel wafer silent check valves and a variety of specially cast alloys. Keckley wafer check valves are normally stocked and available to ship immediately with metal seats. Buna-n, Viton, and EPDM seats are available and would be machined at our facility in Skokie, Illinois. The standard discs furnished in all units are stainless steel.
Keckley wafer check valves are field serviceable without the need for special tools. Keckley wafer center guided silent check valves are designed to ASME specifications and tested to API 598 standards.
Wafer Center Guided Silent
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