Design Features 1.Stable pressure-bearing: equipped with changeable elastic nitrile rubber sealing ring, firm wall thickness; it is able to bear pressure under high pressure line; 2.Convenient to exchange: union joints on both ends and can be exchanged with LP, UN internationally due to inch size is applied; 3.Simple maintenance: it is unnecessary to dissemble from pipeline to maintain or repair plug valve, and no need to use special tools in case of disassembling; 4.Good sealing and preservation: the plug cock is fine finished by special coating technology; 5.Visible valve position: the symbols of fully open and close of valve are clearly marked on the plug cock cap. The tripping spring restricts valve in proper positions. Main Technical Parameters of Plug valve High pressure Plug valve Specifications buckling size cold working press Terminal connection type Buckle model SF42 SF70 SF105 1" 2" 2" 2" 3"3" 42Mpa(6000psi) 70Mpa(10000psi) 105Mpa(15000psi) Internal thread ,External thread(LP,NU) union fig1002 union fig1502 union fig602 M M MF F F Remark:F-threaded joint,M-sphere joint;LP-pipe thread, UN-un-thickening tubing thread How to place an order:SF105-MF-2"2"-fig 1502 union plug valve Example:SF105-MF-2"2"-fig 1502 Structure of union plug valve