The urethane liner is cast in place to form a continuous liner throughout the entire body, chest, packing chamber and flange face area.
氨基甲酸乙酯衬垫采用定点浇铸工艺，在整个阀体、阀腔、填料腔和法兰面区域表面形成全面连续的覆盖衬垫。
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。
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。
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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