Needle Valve Straight Body Material Stainless Steel Pipe Size 1/2 in FNPT Connection Stem Type Stainless Steel Seal Material PTFE Handle Material Stainless Steel Max Pressure 6 000 psi Temp Rating -65 Degrees to 450 Degrees F Max Flow 0.35 gpm Max Height 3 1/8 in Length 2 1/2 in Standards Tested In Accordance to API 598