Reliable Valves, Check Valves [NRV] are Swing Type with bolted cover construction. The one piece disc construction is securely fastened to the hinge by means of a lock nut & pin. The Disc is free to rotating type to avoid any other wear. The hinge pin offers excellent wear resistance properties.
Swing Check valves also can be supplied with Titling disc design, Dash pot arrangement and outside lever & weight design for use where control of the disc as desired.
Reliable Valves also offer P.T.F.E. (PFA / FEP) Lined Ball Type/Y Type & Rubber Lined Flap Type Check Valves for high corrosive application.
Specifications & Standards
|Design & Manufacture||: BS 5351 / API 6D/ANSI B16:34|
|Body & Trim||: Nace MR 01-75|
|Casting Inspection||: MSS SP-53, 55, 59, 94|
|Testing||: BS 6755 Part-I / API 598|
|Flange Dimensions||: ANSI B16.5 / B16.47 / MSS SP-44|
|Face to Face||: ANSI B16.10 / API-6D|
Valve Type & Configuration
Swing check valves shall have a disc which response automatically to block fluid in one direction. Swing check valve can be of Wafer, Axial Flow & Lift type.
Pressure & Temperature Rating
Valves manufactured by Reliable Valves shall be furnished in one of the following classes:
- PN 20 (class 150)
- PN 50 (class 300)
- PN 64 (class 400)