Why You Should Choose Chexter™
- Application specific sealing: one with combination soft-seal ring and metal seat-seal; one with metal-to-metal sealing surfaces for extreme temperature services.
- Easy-to-install, Lightweight: Chexter™ fits between line flanges.
- Slim face-to-face dimension allows Chexter™ to fit close piping arrangements and save space.
- Only one moving part in Chexter™... the eccentrically mounted, contoured disc pivots open or closed according to flow directions.
- One-piece, soft-seal ring is easily replaced, with three material options: Buna-N®, Teflon®, and Viton®. Other materials are available on request.
- Chexter™ parts are interchangeable to allow for different metal trim combinations.
- Valve opens and closes at low differential pressure.
- Heavy-duty construction of Chexter™ assures long life.
Non-slam Sealing to Prevent Reverse Flow
- Raised face and flat face valves in 2–36"
- Ring type joint face valves in 2–24"
- Many types of metals and trims available
- Replaceable seal ring
- Slim body design
- Silent operation
- Low pressure drop
- Horizontal or vertical upflow services
- Lightweight, easy to install
- For gases and liquids
Operation
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Valve Open
The contoured disc of the Chexter™ lifts easily off the seat to open the valve. The airfoil design of the disc allows it to “float” on the flow. Rugged disc stops built into the body position the disc for optimum flow characteristics. Large body cavity helps minimize flow restriction. The valve functions smoothly and silently in both horizontal and vertical up-flow lines.
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Valve Closed
The Chexter™ disc has definite design advantages. It is counterweighted, mounted eccentrically and spring-loaded. As flow decreases, the disc starts closing and seals before reverse flow takes effect. Back pressure against the disc moves it across the soft seal into the metal seat for tight shut off. |
