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Bidirectional seal butterfly valve
Main features:
1). This valve can combine functions of butterfly valve, half ball valve, gate valve and stop valve;
2). This valve can be sealed well under positive pressure and larger reversed pressure;
3). Seal of this valve adopts structure and principle of half ball valve but cheaper and more durable;
4). Light weight, bidirectional hard seal with low friction;
5). This valve can be widely used in pump exit, pipeline system, recycle water system, sewage system and high level water channel
Technical parameters:
Nominal diameter(mm) | Nominal pressure (MPa) | Test pressure(MPa) | Applicable temperature (°C) | Applicable medium | ||
Shell intensity test | Positive seal test | Reverse seal test | ||||
DN50~3000 | 0.6 | 0.9 | 0.66 | 0.66 | 0~200°C | Clean water, sewage and oil |
1.0 | 1.5 | 1.1 | 1.1 | |||
1.6 | 2.4 | 1.76 | 1.76 | |||
2.5 | 3.75 | 2.75 | 2.75 | |||
4.0 | 6.0 | 4.4 | 4.4 | |||
Main materials
Name | Material |
Valve body | WCB,304,306 |
Valve board | WCB,304,306 |
Valve stem | 1Cr13,2Cr13 |
Valve bench | 304,306,QT400Ni2Cr |
Bidirectional seal butterfly valve
