进口持压泄压阀由主阀、泄压/持压导阀针阀、 、 球阀、微形过滤器和压力表组成水力控制接管系统。
A pressure relief valve from the main valve, pressure relief / holding pressure pilot valve needle valve, ball valve, micro shaped filter and pressure gauge hydraulic control over the system.
水力控制阀前要安装过滤器，并应便于排污的要求。
Hydraulic control valve to be installed before the filter, and should facilitate the discharge requirements.
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