Features：Our newly developed high performance valve. The ball seat applies metal sealing structure loaded with disc spring and is easy to blowdown at high temperature. The bau and seat have undergone special hardened treatment so that the sealing surface wont be cut. The ball valve has double-direction sealing function. The medium and small diameter applies floating ball structure (DN15～200mm) and large and medium diameter applies fixed ball structure (DN125～500mm). Application：applicable to various pipes with Class150～1500、PN1.6～16.0MPa，working temperature of-29～425°C(carbon steel)or-40～550°C(stainless steel) to cut off or connect the fluid in the pipes. Different materials of valves can be applied to water, vapour, oil, nitric acid, acetic acid, oxidation fluid and urea, etc. Standards: Manufacture: API608、API 6D, GB12237 Face to face/end to end dimensions: ANSI B16.10, GB12221 Pipe flange: ANSI B16.5、JB/T74～90、GB9112～9131、HG20615～ 20635、SH3006 Testing & inspection: API598, ZB J16006 Body materials:WCB、CF8、CF3、CF8M、CF3M、ZG1Cr18Ni9Ti、 ZG1Cr18Ni12Mo2Ti Type of connection：flange、welding Operatioin：wrench、worm gear actuator、pneumatic actuator、 electric actuator