Size:1/2''-16" Pressure: Class150LB-1500LB Material: A105,LF2,F304,F316,F304L,F316L,MONEL Design & Manufacture Std.: ASME B16.34,API6D Flange End : ANSI B16.5,Butt-weld End.: ASME B 16.25 Test Standard: API598 Structure Type: Pressure Balanced Taper, regular pattern, self lubricated or non lubricated type Operated way: Lever, Pneumatic, Electric Certificate:API 6D,CE,ISO9001