龙湾不锈钢立式止回阀(Check Valve)：按结构划分，可分为龙湾不锈钢立式止回阀、旋启式止回阀和蝶式止回阀三种。龙湾不锈钢立式止回阀可分为立式和直通式两种。
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... backlash valve无游隙阀门 back-pressure valve止回阀 back-up valve列车后端制动阀 ...
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... 帘平面或者物体表面的大 curtain area 止回阀;回流阀 reflux valve 进口断绝门 suction isolating valve ...
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止回阀（ non-return valve）：止回阀又称单向阀或逆止阀，其作用是防止管路中的介质倒流。水泵吸水关的底阀也属于止回阀类。
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旋启式止回阀 Swing Check Valves ; wind check valve ; swing check vingve ; flapper valve
衬里止回阀 Lining Check Valves ; Lining Check Vingves
立式止回阀 Vertical Lift Check Valves ; ertical Lift Check ales ; Verticing Lift Check Vingves
对夹式止回阀 Wafer Check Valves ; wafer check ; Wafer type check valve ; Wecurir Check Vingves
升降式止回阀 Lift Check Valves ; lift check vingve ; Aetv Lift Check Valve ; Lift check ale
切断式止回阀 stop check valve ; non-return valve ; non-return vingve ; stop check vingve
蝶式止回阀 butterfly check valve ; Butterfly swing check valve ; butterfly check, dual-plate wafer-type check ; butterfliswingcheckvalve
球形止回阀 [机] ball check valve ; ball non-return valve ; ball and seat valve ; return valve
蝶式缓冲止回阀 Butterfly Type Non-slam Check ; Non-slam Check ; slam Check
With regard to flux control and check valve, based on its structure and work principle, presented the method of type selection.
对自力式限流止回阀,在分析其结构和工作原理的基础上,提出了选型方法。
参考来源 - 闭式水循环系统中平衡装置的应用研究·2,447,543篇论文数据，部分数据来源于NoteExpress
目的：检测1号止回阀对于回流的密封性。
Purpose: To test valve No. 1 for tightness against reverse flow.
系列719双止回阀总成应该安装在每个标注的位置上。
Series 719 Double Check Valve Assembly shall be installed at each noted location.
止回阀与安全阀在齿轮泵的输出管路上最好安装一个止回阀。
Check valve and relief valve on the output of the gear pump tube had better install a check valve.
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