德国Burkert调节阀供应：结构简单、体积小、重量轻，只由少数几个零件组成。而且只需旋转90°即可快速启闭，操作简单，同时该阀门具有良好的流体控制特性。蝶阀处于*开启位置时，蝶板厚度是介质流经阀体时*的阻力，因此通过该阀门所产生的压力降很小，故具有较好的流量控制特性。蝶阀有弹密封和金属的密封两种密封型式。弹性密封阀门，密封圈可以镶嵌在阀体上或附在蝶板周边。采用金属密封的阀门一般比弹性密封的阀门寿命长，但很难做到*密封。金属密封能适应较高的工作温度，弹性密封则具有受温度限制的缺陷。 如果要求蝶阀作为流量控制使用，主要的是正确选择阀门的尺寸和类型。蝶阀的结构原理尤其适合制作大口径阀门。蝶阀不仅在石油、煤气、化工、水处理等一般工业上得到广泛应用，而且还应用于热电站的冷却水系统。常用的蝶阀有对夹式蝶阀和法兰式蝶阀两种。

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