First, H664Y extraction check valve purposes
The
extraction check valve is mainly used for steam turbine power plant
steam extraction system to prevent the media or water back to the
turbine pumps and other important facilities play a protective role, the
performance requirements for the pipeline medium Back flow, power
outages, accidents and other abnormal state, the valve instantly shut
down, close time is less than 0.5 seconds.
Second, H664Y pumping check valve performance specifications
1, the nominal pressure:
| Nominal pressure | 1.0 ~ 2.5 | 4.0 ~ 6.4 | 10.0 |
| Nominal diameter | 50 ~ 1000 | 50 ~ 400 | 80 ~ 350 |
2, the medium: water, steam, air, oil
3, the working temperature:
| The main material | WCB | WC6 | WC9 |
| Operating temperature | ≤425 ℃ | ≤540 ℃ | ≤550 ℃ |
Third, H664Y suction check valve main dimensions
| H664H-10 | ||||||||||
| DN | L | D | D1 | D2 | H | H1 | H2 | H3 | L1 | W (kg) |
| 450 | 740 | 428 | 476 | 630 | 990 | 425 | 510 | 755 | 486 | 620 |
| 500 | 790 | 468 | 520 | 658 | 990 | 470 | 545 | 852 | 554 | 759 |
| 700 | 1040 | 682 | 747 | 845 | 990 | 560 | 625 | 1240 | 820 | 1258 |
| 800 | 1295 | 780 | 842 | 995 | 1257 | 650 | 645 | 1348.3 | 928 | 1788 |
| 1000 | 1600 | 1110 | 1150 | 1230 | 1700 | 850 | 745 | 1840 | 1040 | 4800 |
| H664H-16 | ||||||||
| DN | L | D | D1 | D2 | H | H1 | H2 | W (kg) |
| 200 | 526 | 195 | 239 | 410 | 815 | 325 | 390 | 236 |
| 300 | 610 | 300 | 354 | 494 | 845 | 350 | 445 | 376 |
| 400 | 838 | 380 | 436 | 600 | 1142 | 450 | 490 | 674 |
| H664H-25 | ||||||||
| DN | L | D | D1 | D2 | H | H1 | H2 | W (kg) |
| 250 | 680 | 250 | 302 | 475 | 904 | 380 | 440 | 385 |
| 500 | 1020 | 480 | 584 | 820 | 1240 | 580 | 560 | 1537 |
