The urethane liner extends over the flange face to serve as the valve's flange gasket.
这种氨基甲酸乙酯延展覆盖到法兰表面，起到阀门法兰衬垫的作用。
The flange face of agitator mount nozzle shall be perpendicular to vessel axis within tolerance of 1/500.
安装搅拌器的设备口的法兰面同容器轴线的垂直度容许偏差为1/500。
It has a solid one-piece PTFE liner that extends over the raised face portion of the flange face to serve as the gasket.
阀体法兰突面上有聚四氟乙烯实体起垫片的作用。
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