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 |