For oil service a metal disc and a neoprene diaphragm is used. Deep gland packed stuffing box for minimum friction on valve stem. Wide pressure adjustment range easily obtained by interchangeable control springs. Body constructed of brass with screwed ends. 715 pressure reducing valve is a single seated valve suitable for either dead-end or continuous service because it seals tightly when there is no demand on the low pressure side.
All parts are renewable and interchangeable.
Valve seat and disc can be changed without removing valve body from the line. Easily adaptable to wide variety of services-steam, air, oil, depending on the type diaphragm and disc used. A nyloninserted neoprene diaphragm and composition disc is standard for steam service, with initial pressure under SO psig. A stainless steel valve and seat is furnished for initial pressure SO psig or above. Deep gland packed stuffing box for minimum friction on valve stem.