Characteristics of insulation Y-type stop valve   1. It is simple in structure and convenient in manufacture and maintenance;  2. The working stroke is small and the opening and closing time is short;  3. Good sealing performance, small friction between sealing surfaces and long service life.   Executive standard of insulation Y-type stop valve Product specification design code Structural length Connecting flange Test and inspection GB/T 12235 GB/T 12221 JB/T 79、GB/T9113、HG/T20592、EN1092-1/2、ASME B16.5/B16.47 JB/T 9092GB/T13927、API598 Main performance specifications Nominal pressure PN（MPa） Test pressure（MPa） Applicable temperature ℃ Applicable medium Jacket pressure（MPa） housing seal up 1.6 2.4 1.8 ≤350 Acids ≤1.0 2.5 3.8 2.8 ≤350 Acids ≤1.0 Material of main parts Part name ZG1Cr18Ni9Ti  ZG00Cr18Ni10  ZG1Cr18Ni12Mo2Ti  ZG00Cr17Ni14Mo2  WCB  Body / bonnet ZG1Cr18Ni9Ti ZG00Cr18Ni10 ZG1Cr18Ni12Mo2Ti ZG00Cr17Ni14Mo2 WCB Ram ZG1Cr18Ni9Ti ZG00Cr18Ni10 ZG1Cr18Ni12Mo2Ti ZG00Cr17Ni14Mo2 1Cr13 Stem 1Cr18Ni9Ti 00Cr18Ni10 1Cr18Ni12MoTi 00Cr17Ni14Mo 1Cr13 filler PTFE spin PTFE spin PTFE spin PTFE spin graphite shim 304L+PTFE 304L+PTFE 316L+PTFE 316L+PTFE graphite+304 Gland ZG1Cr18Ni9Ti ZG00Cr18Ni10 ZG1Cr18Ni12Mo2Ti ZG00Cr17Ni14Mo2 WCB Packing pressure ring 1Cr18Ni9Ti 00Cr18Ni10 1Cr18Ni12MoTi 00Cr17Ni14Mo 1Cr13 Bolt 1Cr17Ni2 1Cr17Ni2 1Cr17Ni2 1Cr17Ni2 35CrMoA Nut 1Cr18Ni9Ti 1Cr18Ni9Ti 1Cr18Ni9Ti 1Cr18Ni9Ti 45   Insulation Y-type stop valve drawing   Nominal pressure（PN） DN(mm) L L1 L2 H D D1 D2 b f zxΦd D0 WT(Kg) BJ41W-16/25/40 PN16PN25 25 210 50 65 250 135 100 78 18 2 4 18 160 25 32 230 55 70 270 145 110 85 18 3 4.18 160 30 40 260 60 78 310 160 125 100 20 3 4.18 160 36 50 300 60 88 330 180 145 120 22 3 8.18 240 40 65 340 65 95 360 195 160 135 22 3 8-18 240 54 80 380 70 112 400 230 190 160 24 3 8-23 280 70 100 430 75 132 480 270 220 188 28 3 8-23 320 100 125 490 80 146 550 300 250 218 30 3 8-25 360 130 150 550 90 172 620 330 280 248 32 3 12-25 360 170 200 690 95 205 750 395 340 302 36 3 12-25 400 250 PN40 25 210 50 65 250 135 100 78 18 2 4-18 160 25 32 230 55 70 270 145 110 85 18 3 4-18 160 33 40 260 60 78 310 160 125 100 20 3 4-18 160 41 50 300 60 88 330 180 145 120 22 3 8-18 240 45 65 340 65 95 360 195 160 135 22 3 8-18 240 62 80 380 70 112 400 230 190 160 24 3 8-23 280 80 100 430 75 132 480 270 220 188 28 3 8-25 320 100 125 490 80 146 550 300 250 218 30 3 8-25 360 130 150 550 90 172 620 350 295 258 34 3 12-30 360 185 200 690 95 205 750 415 355 315 40 3 12-34 400 268