凸耳式阀门应该有能力在全压力下提供双向“终端应用”，不需要下游蒸汽无口法兰。
Lug style valves shall be capable of providing bidirectional "Dead End Service" at full pressure without the need for down stream blind flange.
一件式不锈钢、全凸耳、铸件阀体比焊接装配阀体更坚固，更不易由于热应力而导致扭曲。
One-piece stainless steel, fully-lugged, cast body is stronger than welded bodies and less subject to distortion due to thermal stress.
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