ASME 250 PSI Brass Safety Valve - 1/2" MNPTASME 250 PSI Brass Safety Valve 1 2" MNPT Model SB ASME safety valve is a high capacity safety valve. Unique O ring seal ensures valve is bubble tight to within 10% of set pressure. Set pressure tolerance is + 3%. SB50 Outline Drawing SB Flow Charts Specifications Construction: Brass Stainless Steel Springs FKM O Ring Seal Set Pressure 250 PSI Max Temp. 250F
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