The Valve is a hydraulically operated, diaphragm actuated, single chambered globe or angle pattern valve. It consists of three major components, namely: the body, cover and diaphragm assembly. The diaphragm assembly is the only moving part,and formsasealed chamber in the upper portion of the valve,separating operating pressure fromline pressure. The synthetic rubbersealing disc,with rectangular crosssection, issupported on three and a halfsides bya disc guide and a disc retainer,and formsa drip tightseal.

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