Whole Set of Water Turbine Butterfly Valve
The introduction and attention point
The whole set of large, medium-sized water turbine butterfly valve, is specifically developed for hydroelectric power stations. It consists of main valve, main expansion joint, connecting pipe upstream and downstream, manholes, bypass pipes, bypass valve, bypass pipe expansion joint, exhaust valve, exhaust cut off valve, sewage valve and outfall, etc. The main valve is drived by hydraulic, hydraulic equipments can be divided into: full-hydraulic control type, heavy hammer closed type and spring off type. The customers can choose when ordering. The attention points are : the flow of water through the valve can be divided into ≤ 3m/s, ≤ 5m / s, ≤ 7m / s and ≤ 9m / s four levels, it must be specified when ordering.
Dimensions & constructral diagram
Whole set of water turbine butterfly valve constructral diagram(pic1)
Whole set of water turbine butterfly valve constructral diagram(pic2)
Main technical parameter
| nominal diameter DN（mm） | 1000～3000 | ||||
| nominal pressurePN（MPa） | 0.25 | 0.6 | 1.0 | 1.6 | 2.5 |
| sealing test（MPa） | 0.275 | 0.66 | 1.1 | 1.76 | 2.75 |
| intensity test（MPa） | 0.375 | 0.9 | 1.5 | 2.4 | 3.75 |
| suitable temperature（℃） | ≤80℃ | ||||
| applicable medium | river water | ||||
| drive mode | full-hydraulic control type, heavy hammer closed type and spring off type | ||||
Implement standard
| design | flange | pressure test |
| GB 14478 | GB 2555～2556 | GB/T 13927 |
The external and connection dimensions
| DN | T | L1 | L2 | H1 | H2 | H3 | B | 0.25MPa | 0.6MPa | 1.0MPa | 1.6MPa | 2.5MPa | |||||
| A1 | A2 | A1 | A2 | A1 | A2 | A1 | A2 | A1 | A2 | ||||||||
| 1000 | According to customers’ choice | 769 | 1504 | 705 | 1018 | 545 | 1000 | 1113 | 1048 | 1168 | 1204 | 1223 | 1360 | 1278 | 1390 | 1333 | 1431 |
| 1200 | 850 | 1605 | 840 | 1270 | 645 | 1200 | 1268 | 1304 | 1323 | 1460 | 1378 | 1490 | 1433 | 1627 | 1488 | 1728 | |
| 1400 | 931 | 1706 | 978 | 1522 | 760 | 1400 | 1423 | 1560 | 1478 | 1591 | 1533 | 1631 | 1588 | 1863 | 1643 | 2025 | |
| 1600 | 1012 | 1807 | 1110 | 1774 | 860 | 1600 | 1578 | 1714 | 1633 | 1721 | 1688 | 1966 | 1743 | 2187 | 1798 | 2321 | |
| 1800 | 1093 | 1908 | 1245 | 2026 | 960 | 1800 | 1733 | 1856 | 1788 | 2066 | 1843 | 2284 | 1898 | 2510 | 1953 | 2617 | |
| 2000 | 1174 | 2009 | 1380 | 2278 | 1075 | 2000 | 1888 | 2110 | 1943 | 2394 | 1998 | 2610 | 2053 | 2796 | 2108 | 2913 | |
| 2200 | 1255 | 2111 | 1515 | 2530 | 1175 | 2200 | 2043 | 2494 | 2098 | 2740 | 2153 | 2896 | 2208 | 3052 | 2263 | 3209 | |
| 2400 | 1336 | 2212 | 1650 | 2782 | 1275 | 2400 | 2198 | 2840 | 2253 | 2996 | 2308 | 3452 | 2363 | 3308 | 2418 | 3506 | |
| 2600 | 1417 | 2313 | 1785 | 3034 | 1390 | 2600 | 2353 | 3096 | 2408 | 3252 | 2463 | 3408 | 2518 | 3606 | 2573 | 3803 | |
| 2800 | 1498 | 2414 | 1918 | 3280 | 1490 | 2800 | 2508 | 3352 | 2563 | 3508 | 2618 | 3706 | 2673 | 3903 | 2728 | 4100 | |
| 3000 | 1575 | 2515 | 2051 | 2529 | 1590 | 3000 | 2664 | 3608 | 2718 | 3806 | 2773 | 4003 | 2828 | 4200 | 2883 | 4397 | |
