Double Disc Wafer Swing Check Valve
- Suitable Temperature: BUNA-N (NBR) ≤ 80°C; EPDM ≤120°C; VITON ≤ 150°C
- Suitable Media: Fresh Water, Sewage, Sea Water, Air, Vapour, Food, Medicine, Oils, Acids, Alkalis, Salts, Ect...
In a horizonal pipe, the check valve must always be installed with its hinge in the verticle position.
In a piping system, some miimum distances must be respected between the check valve position and a bend or a tee. The following drawings show some horizontal pipe configurations (view from above) in which the check valve is installed with its hinge pin in the verticle position.
The minimum recommended distance for a check valve installed downstream from a bend, tee, pump or valve causing flow disturbance is 6 diameters.
When such a unit is downstream of the check valve, it is necessary to respect a distance of at least 2 diameters.