变压器蝶阀 蜗轮法兰铸钢系列DN40-1200 变压器配件 蝶阀阀门 逆止阀

　　按连接方式分:

　　By connection mode:

　　1、对夹式蝶阀

　　1. Wafer butterfly valve

　　对夹式蝶阀的蝶板安装于管道的直径方向。阀门则呈全开状态。

　　The butterfly plate of wafer butterfly valve is installed in the diameter direction of the pipeline. The valve is fully open.

　　对夹式蝶阀结构简单、体积小、重量轻。蝶阀有弹性密封和金属密封两种密封型式。弹性密封阀门，密封圈可以镶嵌在阀体上或附在蝶板周边。

　　The wafer butterfly valve has the advantages of simple structure, small volume and light weight. Butterfly valve has two sealing types: elastic seal and metal seal. For the elastic sealing valve, the sealing ring can be embedded on the valve body or attached to the periphery of the butterfly plate.

　　2、法兰式蝶阀

　　2. Flange butterfly valve

　　法兰式蝶阀为垂直板式结构，阀杆为整体式金属硬密封阀门的密封圈

　　The flange butterfly valve is a vertical plate structure, and the valve stem is the sealing ring of the integral metal hard seal valve

　　为柔性石墨板与不锈钢板复合式结构，安装在阀体上，蝶板密封面堆焊不锈钢。软密封阀门的密封圈为丁腈橡胶材质，是安装在蝶板上的。

　　It is a composite structure of flexible graphite plate and stainless steel plate, which is installed on the valve body, and the sealing surface of the butterfly plate is overlaid with stainless steel. The sealing ring of the soft seal valve is made of nitrile rubber and is installed on the butterfly plate.

　　3、凸耳式蝶阀

　　3. Lug butterfly valve

　　4、焊接式蝶阀

　　4. Welded butterfly valve

　　焊接式蝶阀是一种非密闭型蝶阀，广泛适用于建材、冶金、矿山、电力等生产过程中介质温度≤300℃公称压力为0.1Mpa的管道上，用以连通、启闭或调节介质量。

　　Welded butterfly valve is a non closed butterfly valve, which is widely used in pipelines with medium temperature ≤ 300 ℃ and nominal pressure of 0.1MPa in the production process of building materials, metallurgy, mining, electric power, etc. to connect, open and close or adjust medium quality.