The Masoneilan 173 Series are spring loaded, direct-operated, pressure relieving or back-pressure regulators designed for steam, gas and liquid service. They are available in ½” through 2” (DN15 through DN50) body sizes. These regulators are designed for continuous, rugged industrial use to provide years of reliable service.
Pressure Relieving / Back-Pressure
ServiceSteam, Gas, Liquids
Sizes½” to 2” (DN15-DN50)
Body Ratings and ConnectionsScrewed: NPT ½” through 2” (CN15-DN50)
Flanged: ASME CL150-CL600
Material: Carbon Steel, Stainless Steel, Other Alloys
Plug Type : Disc
Seat : Integral
Capacity : Cv ratings from 0.031 up to 32
Material : Stainless Steel (std.), others on request
Polychloroprene, EPDM, FKM, Stainless Steel