AWP regulating valves with metal bellows are designed for installation in industrial heating and refrigeration systems. Actuation is by hand wheel or ratched. These valves are both regulating and shut-off valves. Rotating the stem clockwise will lower the valve disc onto the valve seat and therefore close the pipe, counter-clockwise rotation will lift the valve disc and open the pipe. The regulating function is enabled by a cone on the underside of the valve disc. The maximum diameter of the cone corresponds to the valve’s nominal diameter. The stem sealing is provided by a threaded bush and a metal bellows which ensures a complete hermetic sealing. The valves are equipped with a back seal. 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
- Installation is possible in any position but the flow direction must be observed