Characteristics1,Website: , The most excellent difference from the common valve is that the valve can be maintained on pipe line no need to dismount from the pipe line.The back space seat structure is adopted for the seat and the rear portion of seat retainer is oblique angle to prevent accumulation of impurity from affecting seat's back space.2, Used top entry structure with full port, there is no flow resistance in the flow port, zero floe coefficient,when the valve closed or opened, the trim won't be washout,the ball surface move gradually along the seat, have cut off function to realized reliable sealing, with long longevity.3,open and close quickly as well as start and close flexibly4, Trunnion mounted ball design5, Full port and reduced port is available.Valve materials Body material : WCB,LCB,LCC,CF8, CF8M Semi-ball material : A105+ENP, LF2+ENP, F304,F316Stem material :420, LF2,304,316, Seat material : A105+ENP, LF2+ENP, F304,F316, Seat insert : PTFE,NYLON,PEEK,VITONApplicable standard for Valve :Design and Manufacture according to: API608 Length of Face to face : ASME B 16.10 Flange size standard: ASME B 16.5 Test and inspection standard: API608NPS : 2''-60'' ( 50mm - 1500mm )Pressure range : 150 class - 600 classDimension (150 class pressure for reference) Unit:mmNPSLRJLHHWDD1D2bfn-¢dfull portreduce port2''2'' ×1 1/2''17819122840015012192191.64-¢192 1/2''2 1/2'' ×1 1/2''190203248420180140105221.64-¢193''3'' × 2''203216270460190153127241.64-¢194''4'' × 3''229241294480229191157241.68-¢195''5'' × 3''356368322500255216186241.68-¢226''6'' × 4''394406470540280242216261.68-¢228''8'' × 6''457470520580343299270291.68-¢2210''10'' × 8''533546610640406362324311.612-¢2512''12'' × 10''610622650690485432381321.612-¢2514''14'' × 10''686699740785535476413351.612-¢2914''14'' × 12''686699740785535476413351.612-¢2916''16'' × 14''762775775830600540470371.616-¢29