Full set of pipe orifice, valves, flanges and counter flanges, fasteners and all other attachments, all water release valves, gas release valves and safety valves.

全套管道孔板、阀门、法兰及反法兰、紧固件及其它所有附件，所有放水、放气阀门及安全阀。

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Set pressure and orifice size determine valve capacity.

根据设置压力和节流孔通径来确定阀门的流容。

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