ISO 17292 API Cast Steel Floating Ball valves WCB Body 3″ CL150

Two piece construction;

This structure is more convenient for disassembly valve disassembly and internal parts maintenance replacement.

Full-bore design provides big flow control.

We used A193 B7/A194 2H, which is whole threaded specially used for valves and so on.

We never use bad material as A3 instead which is not thread in the middle like small factory marked B7 too and saving 10% cost but hurt  more than 10% service life too.

Ball can produce a certain displacement and press lightry on the sealing surface of the outlet end to ensurethat the outlet end is sealed.

Our ball is solid type, not hollow or made by plate.

ln case of fire during the use of  valve, the seat ring made of  PTFE will be decomposed or damaged under high temperature and cause higher leakage. The fireproof seal ring is set between ball and seat so that after the valve seat is burnt, the medium will push the ball rapidly towards the downstream metal seal ring to form the auxiliary metal to metal sealing structure, which can effectively control valve leakage. In addition, the middle flange sealing gasket is made of metal wound gasket, which can ensure sealing even under high temperature.

This ball valve is provided with the anti-static structure and adopts the static electricity discharge device to directly form a static channel between the ball and body or form a static channel between the ball and body through the stem,so as to discharge the static electricity produced due to friction during the opening and closing of ball and seat through the pipeline，avoiding fire or explosion that may be caused by static spark and ensuring system safety.

The floating ball valve adopts the design of flexible seal ring structure. When the medium pressure is lower, the contact area of seal ring and ball is smaller，so higher sealing ratio is formed at the place where the seal ringand ball contact to ensure reliable sealing. When the medium pressure is higher, the contact area of seal ringand ball becomes bigger along with the elasticdeformation of seal ring, so the seal ring can endure higher medium thrust without being damaged.

Our stem adopts the blow-out proof structure.The stem is designed with the footstep at its bottom so that with the positioning of upper end cover and screw, the stem will not be blown out by the medium even in case of abnormal pressure rise in the valve cavity.

The manual ball valve can be locked by a lock when it is at the full open or full close position. The 90°open and close positioning piece with lock hole is designed to avoid valve misoperation caused due to handle operation by non-operators, and it can also prevent valve opening or closing, or other accidents caused by pipeline vibration or unpredictable factors.