Features： Absorbing advanced foreign technology, the valve seat applies elastic sealing structure, which is reliable and easy to close. The stem applies down loading &sealing structure. Lest the pressure inside the valve chamber rises, the stem wont be blasted out. Its fireproof structure and endure sudden fire, keep running stably and good sealing. The anti-static electricity blowed structure can be designed according to customers needs. The 90°switch locator with holes can be set. Lock can be set according to customers needs to avoid false operation.DN15～200mm can apply the structure of floating ball.DN150～500mm can apply fixed ball structure. Application： Applicable to the pipes of Class150～1500、PN1.6～16.0MPa，with working temperature of-29～180°C(ball seat being PTFE)-29～300°C(ball seat being PPL)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 Face to face/end to end dimensions Pipe flange Testing & inspection API608API 6DGB12237 ANSI B16.10GB12221 ANSI B16.5、JB/T74～90、GB9112～9131、HG20615～20635、SH3006 API598ZB J16006 Body material:WCB、CF8、CF3、CF8M、CF3M、ZG1Cr18Ni9Ti、ZG1Cr18Ni12Mo2Ti Type of connection：flange Operation：Wrench、worm gear actuator 、pneumatic actuator、electric actuator Type of connection：flange Operation：Wrench、worm gear actuator 、pneumatic actuator、electric actuator Products category：