Product Overview of Swing Check Valve H44H:
Product model: H44H
Nominal diameter: NPS1/2"~60" (DN15~1500mm)
Nominal pressure: Class150~2500Lb (PN10~420MPa)
Link: RF, RTJ, BW
Operating temperature: -196℃~+560℃
Main material: carbon steel, stainless steel, alloy steel
Design standard: API603M, ASME B16.34, API6D
Structure Length: ASME B16.10
Connection standard: ASME B16.5, ASME B16.25
Pressure test: API 598
Pressure - temperature rating: ASME B16.34
Product Details of Swing Check Valve H44H:
Main Features of Swing Check Valve H44H:
1, the valve closed quickly, water hammer pressure is small.
2, horizontal or vertical pipe can be used, easy to install.
3, smooth flow path, fluid resistance is small.
4, action sensitive, good sealing performance.
5, the valve stroke is short, off valve impact is small.
6, the overall structure, simple and compact, handsome in appearance.
7, long service life, high reliability.
Main Connection Dimensions & Weight of Swing Check Valve H44H:

| Pound class | Nominal diameter (DN) | Main connection size (mm) | H44 dimensions | Weight (kg) | |||||||
| in | mm | L | D | D1 | D2 | b | f | z-φd | H | ||
| 150Lb (2.0Mpa) (10K) | 2 | 50 | 203 | 152 | 120.5 | 92 | 16 | 1.6 | 4-19 | 165 | 17 |
| 2 1/2 | 65 | 216 | 178 | 139.5 | 105 | 17.5 | 1.6 | 4-19 | 175 | 25 | |
| 3 | 80 | 241 | 190 | 152.5 | 127 | 19.5 | 1.6 | 4-19 | 190 | 29 | |
| 4 | 100 | 292 | 229 | 190.5 | 157 | 24 | 1.6 | 8-19 | 215 | 50 | |
| 5 | 125 | 330 | 254 | 216 | 186 | 24 | 1.6 | 8-22 | 245 | 75 | |
| 6 | 150 | 356 | 279 | 241.5 | 216 | 25.5 | 1.6 | 8-22 | 265 | 85 | |
| 8 | 200 | 495 | 343 | 298.5 | 270 | 29 | 1.6 | 8-22 | 320 | 150 | |
| 10 | 250 | 622 | 406 | 362 | 324 | 30.5 | 1.6 | 12-25 | 365 | 240 | |
| 12 | 300 | 698 | 483 | 432 | 381 | 32 | 1.6 | 12-25 | 415 | 350 | |
| 14 | 350 | 787 | 533 | 476 | 413 | 35 | 1.6 | 12-29 | 460 | 460 | |
| 16 | 400 | 864 | 597 | 540 | 470 | 37 | 1.6 | 16-29 | 495 | 580 | |
| 20 | 500 | 978 | 698 | 635 | 584 | 43 | 1.6 | 20-32 | 590 | 840 | |
| 24 | 600 | 1295 | 813 | 749.5 | 692 | 48 | 1.6 | 20-35 | 650 | 1140 | |
| 28 | 700 | 1448 | 927 | 863.5 | 800 | 71.5 | 1.6 | 28-35 | |||
| 300Lb (5.0MPa) (20K) | 2 | 50 | 267 | 165 | 127 | 92 | 22.5 | 1.6 | 8-19 | 190 | 28 |
| 21/2 | 65 | 292 | 190 | 149 | 105 | 25.5 | 1.6 | 8-22 | 205 | 33 | |
| 3 | 80 | 318 | 210 | 168 | 127 | 28 5 | 1.6 | 8-22 | 220 | 45 | |
| 4 | 100 | 356 | 254 | 200 | 157 | 32 | 1.6 | 8-22 | 245 | 70 | |
| 5 | 125 | 400 | 279 | 235 | 186 | 35 | 1.6 | 8-22 | 275 | 110 | |
| 6 | 150 | 444 | 318 | 270 | 216 | 36.5 | 1.6 | 12-22 | 295 | 150 | |
| 8 | 200 | 533 | 381 | 330 | 270 | 41.5 | 1.6 | 12.25 | 330 | 230 | |
| 10 | 250 | 622 | 444 | 387.5 | 324 | 48 | 1.6 | 16-29 | 420 | 390 | |
| 12 | 300 | 711 | 521 | 451 | 381 | 51 | 1.6 | 16-32 | 480 | 520 | |
| 14 | 350 | 838 | 584 | 514.5 | 413 | 54 | 1.6 | 20-32 | 535 | 710 | |
| 16 | 400 | 864 | 648 | 571.5 | 470 | 57.5 | 1.6 | 20-35 | 585 | 890 | |
| 20 | 500 | 1016 | 775 | 686 | 584.5 | 63.5 | 1.6 | 24-35 | 685 | 1360 | |
| 24 | 600 | 1364 | 914.5 | 813 | 692.5 | 70 | 1.6 | 24-41 | 785 | 2040 | |
| 600Lb ( 10.0MPa ) | 2 | 50 | 292 | 165 | 127 | 92 | 26 | 6.4 | 8-19 | 210 | 32 |
| 21/2 | 65 | 330 | 190 | 149 | 100 | 29 | 6.4 | 8-22 | 230 | 42 | |
| 3 | 80 | 356 | 210 | 168 | 127 | 32 | 6.4 | 8-22 | 255 | 60 | |
| 4 | 100 | 432 | 273 | 216 | 157 | 38 | 6.4 | 8-25 | 295 | 95 | |
| 5 | 125 | 508 | 330 | 266.5 | 186 | 45 | 6.4 | 8-29 | 310 | 120 | |
| 6 | 150 | 559 | 355.5 | 292 | 216 | 47.5 | 6.4 | 12-29 | 365 | 220 | |
| 8 | 200 | 660 | 419.5 | 349 | 270 | 56 | 6.4 | 12-32 | 420 | 390 | |
| 10 | 250 | 787 | 508 | 432 | 324 | 63.5 | 6.4 | 16-35 | 505 | 630 | |
| 12 | 300 | 838 | 559 | 489 | 381 | 66.5 | 6.4 | 20-35 | 545 | 870 | |
| 14 | 350 | 889 | 603.5 | 527 | 413 | 710 | 6.4 | 20-38 | 600 | 940 | |
| 16 | 400 | 991 | 686 | 603 | 470 | 76.5 | 6.4 | 20-41 | 650 | 1100 | |