AWP shut-off valves are designed for installation in industrial heating and refrigeration systems. They can be actuated with a handwheel or a ratchet that is assembled onto the stem. Rotating the stem clockwise will lower the valve disc onto the valve seat and therefore close the valve, counter-clockwise rotation will lift the valve disc and open the valve. AWP shut-off valves should only be operated in fully opened or fully closed positions. The picture shows a cutaway model with the valve disc in “closed” position. The stem sealing is provided by a threaded bush with spring-elastic PTFE ring. The valves are also equipped with a back seal so that when the valve is fully opened it is possible to replace the threaded bush and the seal.
- Available in steel or stainless steel
- Selection of body material as per German DIN EN12284, AD2000 Series W
- Working mediums: refrigerants as per EN 378 p. 1, e. g. NH3, R22, R134a and blends with refrigerator oil; neutral, gaseous and liquid mediums; glycol-based cold brine
- Assembly is possible in any position