The diaphragm spring coupling supports the opening process of the valve. In its standard version, the valve is suitable for use in liquids. A minimum differential pressure is required for complete opening. A special version (HP00) which opens the valve without differential pressure is available for gas and vacuum applications. Various diaphragm material combinations are available depending on the application. The range of housings includes brass, stainless steel and gunmetal. Dezincification-resistant brass is available for other markets. To reduce power consumption in operation, coils with "Kick and Drop" (KD) electronics assembly (double coil technology) are available. In combination with a plug in accordance with DIN EN 175301-803 Form A, the valves satisfy degree of protection IP65 – in combination with a stainless steel housing NEMA 4X.

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