Name： Gate valve Size： NPS 1/2"-42" Pressure： Class 150-2500 LB Material： WCB,LCB,CF8,CF8M,CF3,CF3M,A105,LF2,F304,F316,F304L,F316L Design & Manufacture Std： API 608,API 6D,BS 5351,ASME B16.34 Face to Face Std： API B16.10,API 6D,DIN 3202 End Connection Std： ASME B16.5,DIN2543-2550,ASME B 16.47,ASME B 16.25 Test Standard： ISO5208,API 6D,BS 6755 Structure Type： One-Piece,Two-Piece,Three-Piece,Reduced Bore,Full Bore Operated Type： Lever,Gear,Pneumatic,Electric