0839740 (Watts) | 1/2 In Bronze Steam Pressure Regulator | 30-140 psiThis 1 2 Inch Process Steam Pressure Regulator, Model 252A 30 140, is Designed to Offer Highly Sensitive Response to Reduced Pressure Changes And Maintain Fullest Possible Volume Without Appreciable Reduced Pressure Drop. This Regulator is Ideal For Use On Applications Such as Oil Lines, Testing Fixtures, Autoclaves, Steam Tables, Steam Irons, Single Radiators, Volcanizes, Sterilizers And Process Lines. For 30 140 Psi. Watts 0839740