en
English
Swing Check Valve is a commonly used valve type, usually used to prevent the reverse direction of liquid flow. Its structure is simple. The check valve 8 is composed of a valve cover and a valve body, and there is a valve in the valve body, and the liquid flow is controlled by the swing of the valve. When the liquid flow direction is changed, the 8 inch check valve will automatically close, thus preventing the liquid from flowing backwards.
| ANSI Class 150lb | ANSI Class 300lb | ANSI Class 600lb | ANSI Class 900lb | ANSI Class 1500lb | ANSI Class 2500lb | |
| NPS | 8 | 8 | 8 | 8 | 8 | 8 |
| (RF/BW)L/L1 | 495 | 533 | 660 | 737 | 832 | 1022 |
| (RTJ)L2 | 508 | 549 | 664 | 740 | 841 | 1038 |
| (OPEN)H | 353 | 353 | 445 | 560 | 595 | 625 |
| (d) | 200 | 200 | 199 | 190 | 177 | 146 |
