Product Details 1, flange type needle valve design and manufacture GB / T 12224-1989 GB / T 12235-1989 2, needle valve flange connection: flange; 3 threaded connection, flange type needle valve structural features: cone seal; 4 threaded stem, the valve inspection and testing: GB / T 13927-1992 5, needle valve flange material: carbon steel according to GB / T 12228-1989 provisions stainless steel GB / T 1220-1989 provisions needle valve flanged pilot project performance specifications Nominal pressure shell test 4 6 4.4 Seal test pressure test 2.4 Temperature ≤180 ° C Suitable medium of water, steam, oil and other flange type needle The main parts of the valve stem nut Material Type Body joint filler J48W-40 20 # 20 # 2Cr13 20 # PTFE J48W-40P SS304 SS304 SS304 SS304 PTFE needle valve flanged main external dimensions ABCF f N-? LH D0 weight (KG) DN10 90 60 41 14 2 4-? 14 130 90 63 2.0 DN15 95 65 46 14 2 4-? 14 130 90 63 2.0 DN20 105 75 56 16 2 4-? 14 150 105 90 2.0 DN25 115 85 65 16 24-? 14 160 120 100