在做一个国外的项目，英语不认识？ check valve是单向阀[有时也single check valve]下面是查到的一篇翻译文献 单向阀又称止回阀或逆止阀。用于液压系统中防止油流反向流动 check valves or as a one-way valve. for the hydraulic system to prevent reverse flow of oil flow. 单向阀有直通式和直角式两种。直通式单向阀用螺纹连接安装在管路上。直角式单向阀有螺 纹连接、板式连接和法兰连接三种形式。液控单向阀也称闭锁阀或保压阀，它与单向阀相同， 用以防止油液反向流动。但在液压回路中需要油流反向流动时又可利用控制油压，打开单向 阀，使油流在两个方向都可流动。液控单向阀采用锥形阀芯，因此密封性能好。在要求封闭 油路时，可用此阀作为油路的单向锁紧而起保压作用。液控单向阀控制油的泄漏方式有内泄 式和外泄式二种。在油流反向出口无背压的油路中可用内泄式；否则需用外泄式，以降低控 制油压力。 a straight-through one-way valves and rectangular type two. straight-through one-way valves installed in a connecting thread of the pipeline. rectangular style is a one-way valve connecting thread, flange type connectivity and connecting three forms. fluid control valves also known as one-way pressure valve closed valves or insurance, with the same one-way valves to prevent reverse flow of oil. however, the need for oil flow in hydraulic circuit reverse flows can use hydraulic control, opening a one-way valve, so that the flow of oil can flow in both directions. fluid control one-way valve used cone disc, sealed a good performance. oil flow closed in demand, the availability of one-way valves as oil flow park sky paul pressure. fluid leakage control one-way valves control the manner of oil and oil-leaking type ii species. no reverse flow of oil exports in the oil flow available within inflow type; otherwise required outflow type, the control of oil in order to reduce pressure.查看更多
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