The shsuoTe Mode S900-1 Hytrol valve is a hydraulically perated diaphragm actuated , globe or angle pattern valve. lt consists of three major components: body diaphragm assembly, and cover. The diaphragm assembly is the only moving part.The diaphragm assembly is guided top and bottom by a precision machined stem. It utilizes a non-wicking diaphragm of nylon fabric bonded with synthetic rubber. A resilient synthetic rubber disc retained on three and one haIf sides by a disc retainerforms a drip-tight seal with the renewable seat when pressure is applied above the diaphragm.· Drip-Tight, positive seating· Service without Removal From Line· Threaded, Flanged or Grooved Ends· GIobe or Angle pattern· 100% Factory Tested