- Flanged Type.
- 18 Inch Check Valve.
- Body: Carbon Steel A216 Gr. WCB.
- Disc Material: Stainless Steel.
- Disc Seat: Metal.
Designed for Long Service Life:
Newly designed CV52's have straightening vanes that reduce turbulence in incoming flow, thus minimizing noise, vibration, erosion, cavitations, and other factors that could result in premature valve failure.
Minimal Head Loss:
Head loss is minimized by the integral straightening vanes that help create laminar flow. A large cross sectional area also lessens pressure drop across the check valve. Unlike typical conical spring constructions that restrict flow, the new CV52 has a compressed spring coupled with a small stem guide that allows for an unobstructed flow path.
Quick Closure to Reduce Water Hammer:
Shut-off is achieved via the fully automatic, spring-assisted discs that close near zero flow velocity. The lightweight, split disc design creates a positive shutoff prior to flow reversal and helps to keep slamming and surges to a minimum. Additionally, the low cracking pressure of the CV52 reduces the amount of energy required to open the valve.
Metal to Metal Seats:
Precision machined sealing surfaces allow the CV52 to maintain a tight seal that meets or exceeds API 598 leakage requirements. Resilent seats are also available to provide bubble tight seals. Sealing is further improved by an additional gasket assembled with the seat independent of the flange gaset.
Versitile and Ecomonic Design:
Clearance within the CV52's body allows a butterfly valve to be installed directly on the outlet side of the valve without extra piping. Because the valve's trim is interchangable, various seats, discs, and springs are available and easy to replace. Exotic spring material, such as moel or inconel 750-X, can easily be substituted for teh standard stainless steel.