The check valves shall be modular and shall seal to the main valve body by the use of an O-ring.
这种止回阀应该是模块化的，并且应该采用一个O形环密封在主阀体上。
The main valve body of the novel three-way pressure reducing valve uses a 10 path electro-hydraulic valve body, has strong universality, and reduces processing difficulty and manufacturing cost;
本发明主阀体借用10通径电液动阀体，通用性强，降低了加工难度和制 造成本；
An O-ring seals the relief valve body to the main housing.
用一个O形环密封安全阀阀体与主外壳。
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