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礦用電動閥門 > 大口徑防爆煤安電動閘閥，大型礦井用電動閘閥，帶煤安證大口徑閘
大口徑防爆煤安電動閘閥，大型礦井用電動閘閥，帶煤安證大口徑閘
| 產品型號： |
MZB941H |
| 品 牌： |
上SQ泉 |
|
|
| 所 在 地： |
上海 |
| 更新日期： |
2024-09-18 |
大口徑及高壓的閘閥，啟閉力矩較大。為了減小啟閉力矩，可采用安裝旁通閥的辦法。旁通閥安裝在主閘閥外部，它的進出口與主閘閥的兩側練練連接，并聯聯通。主閘閥開啟前應先開通旁通閥，進入閥后，使主閘閥閘板前后的壓力差減小，從而減小主閘閥的開啟力矩。旁通閥口徑的選用應根據主閥口徑和使用要求考慮。
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