API598 Hard Seal Lift Check Valve

National standard lift check valve is applicable to nominal pressure PN1 6-16.0mpa, working temperature of - 46 ~ 550 ℃ on pipelines in petroleum, chemical industry, pharmaceutical, chemical fertilizer, power industry and other working conditions to prevent medium backflow.
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PRODUCTS DETAILS

1. The product has reasonable structure, reliable sealing, excellent performance and beautiful appearance; 2. The sealing surface of valve disc and valve seat is overlaid with Co based cemented carbide, which has good wear resistance, corrosion resistance, scratch resistance and long service life; 3. Part materials and flange and gasket dimensions can be reasonably selected according to actual working conditions or user requirements to meet various engineering needs. Main performance specifications Design criteria GB/T 12235 Pressure temperature class GB/T 12224 Structure length GB/T 12221 Flange type and size GB/T 9113、JB/T 79、EN1092、ASME B16.5/B 16.47 Inspection and test JB/T 9092、GB/T13927、API598 Test pressure(MPa) Nominal pressure PN1.6 PN2.5 PN4.0 PN6.4 PN10.0 Shell test 2.4 3.8 6.0 9.6 15.0 High pressure seal 1.8 2.8 4.4 7.1 11.0 Low pressure seal 0.6 Material of main parts No. Part name carbon steel stainless steel Alloy steel Low temperature steel 1 valve body WCB CF8 WC6 LCB 2 Valve disc WCB/25 CF8/F304 WC6/F11 LCB/LF2 3 shim Flexible graphite Flexible graphite Flexible graphite Flexible graphite 4 Valve cover WCB CF8 WC6 LCB 5 Double end stud 35CrMoA 0Cr18Ni9(304) 25Cr2MoVA 35CrMoVA 6 Nut 45# 0Cr18Ni9(304) 35CrMoA 45# 7 Spring 60Si2Mn 0Cr18Ni9(304) 0Cr18Ni9(304) 0Cr18Ni9(304) Main overall connection dimensions DN(mm) L D D1 D2 b-f Z- d H WT(kg) 15 130 95 65 45 16-2 4- 14 77 3 20 150 105 75 58 18-2 4- 14 77 4 25 160 115 85 68 18-2 4- 14 80 5 32 180 140 100 78 18-2 4- 18 85 7 40 200 150 110 88 18-3 4- 18 95 9 50 230 165 125 102 18-3 4- 18 105 10 65 290 185 145 122 18-3 8- 18 120 20 80 310 200 160 138 20-3 8- 18 130 30 100 350 220 180 158 20-3 8- 18 140 39 125 400 250 210 188 22-3 8- 18 155 50 150 480 285 240 212 22-3 8- 22 180 70 200 600 340 295 268 24-3 12 22 215 161 250 730 405 355 320 26-3 12- 26 260 251 300 850 460 410 378 28-4 12- 26 315 395 Main overall connection dimensions DN(mm) L D D1 D2 b-f Z- d H WT(kg) 15 130 95 65 45 16-2 4- 14 100 3.4 20 150 105 75 58 18-2 4- 14 105 5 25 160 115 85 68 18-2 4- 14 120 5.7 32 180 140 100 78 18-2 4- 18 130 9.1 40 200 150 110 88 18-3 4- 18 135 11.8 50 230 165 125 102 20-3 4- 18 149 14.4 65 290 185 145 122 22-3 8- 18 160 23 80 310 200 160 138 24-3 8- 18 169 30 100 350 235 190 162 24-3 8- 18 194 44 125 400 270 220 188 26-3 8- 18 222 65 150 480 300 250 218 28-3 8- 22 255 99 200 600 360 310 278 30-3 12- 22 305 190 250 730 425 370 335 32-3 12- 26 355 315 300 850 485 430 395 34-4 12- 26 410 450 Products Detailes Process Application

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