The proportional direction valve and the proportional relief valve were adopted to timely control the belt tension and its working principles were introduce.
分别采用比例方向流量阀和比例溢流阀来实时控制输送带张力，并分别介绍了其工作原理。
A new type of electro hydraulic digital relief valve, which is a pilot pressure control component directly controlled by digital information is introduced.
介绍的新型电液数字溢流阀是一种数字信息直接控制的导控式压力控制元件。
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.
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。
Two-stage pressure relief valve with provision for remote control.
带远程控制装置的两阶段减压阀。
The pump body combination with control valve, and with built-in adjustable relief valve, one-way valve, it could greatly simplify the system design and installation.
泵体与方向控制阀组合，并内置可调溢流阀，单向阀，可大大简化系统的设计与安装。
Cast iron relief valve in main oil system to control oil pressure to the compressor bearings.
主油路中装有安全阀以控制压缩机轴承中的油压。
Using fluid dynamics analysis software CFD made a numerical simulation to the BOP control system pressure relief valve under the valve different working conditions;
使用流体力学分析软件对减压溢流阀在阀口不同开度条件下进行了阀内流场的数值模拟和仿真；
Using fluid dynamics analysis software CFD made a numerical simulation to the BOP control system pressure relief valve under the valve different working conditions;
使用流体力学分析软件对减压溢流阀在阀口不同开度条件下进行了阀内流场的数值模拟和仿真；
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