With the philosophy of meeting users’ needs, the soft seal ball valve series produced by B3 can be designed and manufactured as per any current standard in the world and special needs of users, and its body material is available for follow-up smelting and heat treatment as specified by users, ensuring to meet operating requirements of working conditions. Its normal type is fireproof and antistatic; and users can designate such functions as emergency sealant filling of seal and stem, explosion-proof seat, automatic pressure relief and double block and bleed.  

Design and manufacture :ANSI B16.34、API6D、 BS159、JIS，GB/T12237
Structure Length :ANSI B16.10，GB/T12221
Flange:GB/T9113、JB/T79、HG20592、SH3406，ANSI B16.5、JIS
Welded 
 GB/T12224，ANSI B16.25