雙向硬密封法蘭蝶閥適用於自來水系統中切斷和調節介質流量，電廠、冶金、石化和工業管道。蝶閥蝶板採用循環形式設計，

由高強度鑄鋼製成，在水流動態衝擊下能保證強度和低水頭損失。

Two way metal hard sealing flange butterfly valve is suitable for cutting off and regulating medium flow in tap water system,

power plant, metallurgy, petrochemical and industrial pipeline. The butterfly valve disc is designed in circulation form and

made of high-strength cast steel, which can ensure the strength and low head loss under the dynamic impact of water flow.