Threaded ball valve and the ball valve is welded into the overall type (one type), two-stage and three-stage. Body casting using imported advanced technology in Taiwan, a reasonable structure, handsome in appearance. Seat with flexible sealing structure, reliable sealing, easy opening and closing. Stem with inverted seal down the structure, the valve chamber abnormal pressure, the stem will not be washed out. Two-piece, three-piece ball valve connections are available with butt fusion (BW) socket welding (SW) and are available with international standard ISO bracket platforms and locking devices. Can be set to 90 ° switch positioning mechanism, according to the need to lock to prevent misuse, drive mode: manual, electric, pneumatic. More Search Keywords: Ball Valve