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GB swing check valve
Model: H44H / W
Nominal diameter: DN50 ~ 800 mm
Nominal pressure: PN1.6 ~ 16.0MPa
Operating temperature: -196 ℃ ~ + 550 ℃
Main material: carbon steel, stainless steel
Suitable medium: water, steam, oil, nitric acid, acetic
Design and manufacture: GB12236
Structural length: GB12221
Connecting flange: JB / T79-1994
Test and inspection: JB / T9092-1999

National Standard Swing Check Valve Uses and Features

H44H / W Swing check valve is designed and manufactured in strict accordance with GB12236 standard. The pin shaft is connected with the valve flap with built-in structure, excellent performance and more reliable sealing. Products are widely used in petroleum, chemical, pharmaceutical, power industry and other conditions of the pipeline.
 

National Standard Swing Check Valve main performance specifications

test pressure Nominal pressure (MPa)
1.6 2.5 4.0 6.4 10.0
Shell test 2.4 3.8 6.0 9.6 15.0
Seal test 1.8 2.8 4.4 7.1 11.0
Body material WCB (C) CF8 (P) CF 8M (R) WC6 WC9
Operating temperature ≤ 425 ≤ 100 ≤ 100 ≤ 550 ≤ 550
Suitable media Water, steam, oil Nitric acids Acetic acid steam steam


 GB Qi Kai check valve implementation of standards

Design and manufacture: GB12236   
 structure length: GB12221     
 connecting flange: JB / T79-1994    
 test and inspection: JB / T9092-1999
 

GB Qi Kai check valve main connection and dimensions and weight

PN
 DN Main connection size (mm) H44 dimensions Weight 
(kg)
mm L D D1 D2 b f z-φd H
2.0Mpa
       
 50 203 152 120.5 92 16 1.6 4-19 165 17
65 216 178 139.5 105 17.5 1.6 4-19 175 25
80 241 190 152.5 127 19.5 1.6 4-19 190 29
100 292 229 190.5 157 24 1.6 8-19 215 50
125 330 254 216 186 24 1.6 8-22 245 75
150 356 279 241.5 216 25.5 1.6 8-22 265 85
200 495 343 298.5 270 29 1.6 8-22 320 150
250 622 406 362 324 30.5 1.6 12-25 365 240
300 698 483 432 381 32 1.6 12-25 415 350
350 787 533 476 413 35 1.6 12-29 460 460
400 864 597 540 470 37 1.6 16-29 495 580
500 978 698 635 584 43 1.6 20-32 590 840
600 1295 813 749.5 692 48 1.6 20-35 650 1140
700 1448 927 863.5 800 71.5 1.6 28-35
5.0MPa
 50 267 165 127 92 22.5 1.6 8-19 190 28
65 292 190 149 105 25.5 1.6 8-22 205 33
80 318 210 168 127 28 5 1.6 8-22 220 45
100 356 254 200 157 32 1.6 8-22 245 70
125 400 279 235 186 35 1.6 8-22 275 110
150 444 318 270 216 36.5 1.6 12-22 295 150
200 533 381 330 270 41.5 1.6 12.25 330 230
250 622 444 387.5 324 48 1.6 16-29 420 390
300 711 521 451 381 51 1.6 16-32 480 520
350 838 584 514.5 413 54 1.6 20-32 535 710
400 864 648 571.5 470 57.5 1.6 20-35 585 890
500 1016 775 686 584.5 63.5 1.6 24-35 685 1360
600 1364 914.5 813 692.5 70 1.6 24-41 785 2040
10.0MPa 50 292 165 127 92 26 6.4 8-19 210 32
65 330 190 149 100 29 6.4 8-22 230 42
80 356 210 168 127 32 6.4 8-22 255 60
100 432 273 216 157 38 6.4 8-25 295 95
125 508 330 266.5 186 45 6.4 8-29 310 120
150 559 355.5 292 216 47.5 6.4 12-29 365 220
200 660 419.5 349 270 56 6.4 12-32 420 390
250 787 508 432 324 63.5 6.4 16-35 505 630
300 838 559 489 381 66.5 6.4 20-35 545 870
350 889 603.5 527 413 710 6.4 20-38 600 940
400 991 686 603 470 76.5 6.4 20-41 650 1100


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