Excess Flow Shut-Off Valve Pipe Size 1/4 in FNPT Differential Pressure 12 psi Flow Limit Setting @ 30 psig Inlet 22.5 slpm Flow Limit Setting @ 1000 psig Inlet 120.6 slpm Connection Type NPT Max Pressure 3 500 psi Temp Range -10 Degrees to 150 Degrees F Body Material 316 Stainless Steel Diaphragm Material Elgiloy Seat Material PCTFE