American standard swing check valve
Structural Features of H44W American Standard Swing Check Valve:
The disc of the American Standard check valve is disc-shaped and moves around the rotating shaft of the valve seat passage. Since the internal passage of the valve is streamlined, the flow resistance is lower than that of a lift-type check valve. It is suitable for large-diameter applications with low flow rates and infrequent flow changes, but is not suitable for pulsating flow. Its sealing performance is inferior to that of a lift-type check valve.
Standard Specifications of H44W American Standard Swing Check Valve:
Design and Manufacturing Standard: API 6D
Face-to-Face Dimension Standard: ASME B 16.10
Flange Connection Standard: ASME B 16.5
Pressure-Temperature Class: ASME B 16.34
Test and Inspection Standard: API 698
Main Connection Dimensions of H44W American Standard Swing Check Valve:
Nominal Diameter | 150Lb | 300Lb | 400Lb | 600Lb | |||||
in | mm | L | H | L | H | L | H | L | H |
11/2 | 40 | 165 | 130 | 241 | 135 | 241 | 135 | 241 | 160 |
2 | 50 | 203 | 135 | 267 | 145 | 292 | 145 | 292 | 170 |
21/2 | 65 | 216 | 145 | 292 | 170 | 330 | 170 | 330 | 180 |
3 | 80 | 241 | 175 | 318 | 210 | 356 | 210 | 356 | 245 |
4 | 100 | 292 | 200 | 356 | 260 | 406 | 260 | 432 | 290 |
5 | 125 | 330 | 255 | 400 | 295 | 457 | 295 | 508 | 320 |
6 | 150 | 356 | 320 | 444 | 325 | 495 | 325 | 559 | 360 |
8 | 200 | 495 | 380 | 533 | 380 | 597 | 380 | 660 | 430 |
10 | 250 | 622 | 440 | 622 | 440 | 673 | 440 | 787 | 505 |
12 | 300 | 698 | 480 | 711 | 520 | 762 | 520 | 838 | 555 |
14 | 350 | 787 | 530 | 838 | 540 | 889 | 540 | 889 | 595 |
16 | 400 | 864 | 580 | 864 | 590 | 902 | 590 | 991 | 680 |
18 | 450 | 978 | 620 | 978 | 670 | 1016 | 670 | 1092 | 780 |
20 | 500 | 978 | 655 | 1016 | 720 | 1054 | 720 | 1194 | 970 |
| Machinery & Equipment/Valves/Check Valves | |