Henry 7771 Packed Shut-off ValveForged Steel, Non Back-Seating DesignThe function of a Forged Steel Shut-Off valve is to provide an isolation or connection point in liquid and gas applications where brass valves are not compatible or do not meet the pressure requirements.ApplicationsHenry Technologies' Shut-Off Valves are used in a variety of air conditioning and refrigeration applications for isolating, flow control, charging and purging. The 776 and 777 series Shut-Off Valves are suitable for use with ammonia, HCFC and HFC refrigerants and their associated oils, as well as other industrial fluids non-corrosive to steel and synthetic rubber.Main FeaturesForged steel constructionNPT bottom connectionsSAE Flare and NPT side connectionsCompact designMolded plastic seal capTechnical SpecificationsMaximum working pressure = 1000 PSI (68.9 Bar)Allowable operating temperature = -20°F to +300°F (-29°C to +149°C)Materials of Construction:The valve body is made from forged steel. The stem is made from plated steel. A metal-to-metal seat seal is used. A graphite compound is used for the packing gland. The seal cap is made from molded plastic.