法兰垫片用于管道法兰连接中，为两片法兰之间的密封件，介质，压力和温度直接影响法兰垫片的选型。
其次，法兰垫片已被密封环所代替，以确保密封面对密封面的匹配。
Secondly, the flange gasket sealing ring has been replaced to ensure that the sealing face of sealing surface of the match.
大型法兰垫片是一种能产生塑性变形，并有一定强度的材料制成的戒指。
The large flange gasket is a ring which can produce plastic deformation and has a certain strength.
ANSI法兰的密封原理极其简单：螺栓的两个密封面相互挤压法兰垫片并形成密封。
ANSI flange sealing principle is very simple: bolt two seal face mutual extruding flange gaskets and formed the seal.
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