Features：The female threaded end ball valve and butt- welding end ball valve are specified as integral body type, two-piece body type and three-piece body type. The body forging, which is both reasonable and beautiful in structure, applies advanced technology from Taiwan. The valve seat applies elastic sealing structure with reliable sealing and easy operation. The stem is set from inside and wont be blowed out if abnormal pressure increases within the chamber. The 90°switch locator with holes can be set. Lock can be added according to customers needs to avoid false operation. Application：applicable to various pipes with PN1.0～4.0MPa，working temperature of -29～180°C(ball seat being reinforced PTFE)or-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 and acetic acid, etc. Standards: Manufacture: API608, API 6D, GB12237 Pipe flange: ANSI B16.5、JB/T74～90、GB9112～9131、HG20615～ 20635、SH3006 Testing & inspection: API598, ZB J16006 Body materials :WCB、CF8、CF8M Type of connection：Female thread, butt-welding Operation：Wrench