Seat Face: Negates need for flange gaskets.
阀座：需使阀兰垫圈。
Flange gaskets are not interchangeable with other mechanical pipe couplings or flange gaskets.
法兰垫圈与其它机械管道连接器或法兰垫圈互换。
Tightness test both the shell and tube sides of the exchanger to check that the flange gaskets are holding tight.
紧力测试对热交换器的管程与壳程，检查法兰垫圈是否紧密。
ANSI flange sealing principle is very simple: bolt two seal face mutual extruding flange gaskets and formed the seal.
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。
To soft gaskets, flange surface too smooth adverse instead, because right now happened resistance smaller.
对软质垫片，法兰面过于光滑反而不利，因为此时发生界面泄露阻力变小了。
Interface leak So, gaskets are different, the requirements of the flange surface roughness is not the same.
所以，垫片不同，所要求的法兰表面粗糙度也不相同。
Flange, bolts, nuts, washers and gaskets not included.
不包括法兰，螺栓，螺母，垫圈和衬垫。
Full face gaskets extending to the flange face edge as given in American Standard Non-Metal gaskets for Pipe Flanges ANSI B16.21 are required.
根据用于管道法兰的美国非金属衬垫标准ANSIB16.21，需要能够延伸至法兰面边缘的全面衬垫。
In long - distance gas pipelines, the normal mechanical connection of process pipelines is flange connection, which consists of flange, bolts, nuts and gaskets.
输气管道站场各种工艺管道常用的机械连接方式是法兰连接。法兰连接是由一组法兰、螺栓、螺母和垫片所构成的连接系统。
In long - distance gas pipelines, the normal mechanical connection of process pipelines is flange connection, which consists of flange, bolts, nuts and gaskets.
输气管道站场各种工艺管道常用的机械连接方式是法兰连接。法兰连接是由一组法兰、螺栓、螺母和垫片所构成的连接系统。
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