Angle Body Piston Valve Nominal Pipe Size 1 1/4 in Orifice Diameter 1 1/4 in Coefficient of Volume (Cv) 36 Operating Pressure Differential - Minimum 0 psi Operating Pressure Differential Steam - Maximum 150 psi Operating Pressure Differential Water - Maximum 180 psi Fluid Temperature - Maximum 366 Degrees F Environmental Rating Indoor Outdoor Valve Ways 2-Way Valve Positions 2-Position Valve Starting Configuration Normally Closed Body Material Bronze Seal Material FKM