Automatic Control Valve Valve Type Pressure Reducing Pipe Size 1 1/2 in Connection Type Grooved Operating Pressure 150 psi Max Continuous Flow Rate 125 gpm Max Intermittent Flow Rate 160 gpm Port Size 1-1/2 x 1-1/2 Max Fluid Temp 140 Degrees F Pilot Adjustment Range 15 to 150 psi Body Material Ductile Iron ASTM A536 Cover Material Ductile Iron Elastomer Material Buna N Nut Material 304 Stainless Steel Spring Material 302 Stainless Steel Stem Material 304 Stainless Steel