Product Type Radiator Valve Heating Method Steam Water Pipe Connection Size 1 1/4 in Pipe Connection Type NPT Radiator Connection Size 1 1/4 in Maximum Pressure 60 psi Max Steam Pressure 15 psi Max Water Pressure 60 psi Actuation Style 1 1/4 in Nut Hand Wheel Body Style Angle Material Bronze Standards ANSI B1.20.1