pump control valve

The assembling, actuating , water-tight test of pump-turbine globe valve and its quality control are introduced.

介绍了抽水蓄能水轮机球阀装配 、 动作及密封漏水试验工艺性与质量控制.

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When load is between 15% and 25%, feedwater control valve is closing at fixed speed determined by function module, main motor-operated-valve is opened automatically, control mode of drum level is transferred to feedwater pump automatically and bumplessly;

15%至25%负荷阶段，给水调节阀由函数模块按照一定的速率自动平滑关闭，主给水电动门自动打开，汽包水位控制方式自动无扰切换为给水泵自动控制；

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The system consists of feedwater pump control, adjusting valve level control, safety and alarm devices.

该系统包括给水泵控制 、 调节阀阀位控制 以及 安全保护和报警.

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Characters Analysis of Constant Flow Pump Controlled by Constant Flow Control Valve

恒流阀控恒流量油泵的特性分析

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Design of quick die change system of heavy-duty press has been introduced with principle and component of lifter, pump and control valve of pneumatic and hydraulic, emphasis especially on design and calculation for lifter and pump.

介绍了用于大型压力机的模具快速更换系统的组成及工作原理，举升器和气动液压泵的结构与工作原理，举升器控制系统的原理等，并重点介绍了举升器和气动液压泵的设计计算。

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The RT and FPGA software control PID temperature, XY stage movement, pump movement, 32 relays for valve manifold, and more to fully automate the procedure.

RT和FPGA的软件控制PID温度，XY平台运动，泵的运动，32继电器阀组，多以完全自动化的程序。

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Since initial adjustment of household heating meter system possess necessary control equipments& self-operated differential pressure controlling valve, temperature control valve and the pump of frequency conversion.

由于分户热计量系统初调节与以往的初调节相比，拥有必要的控制设备&自力式压差控制阀、温控阀、变频水泵。

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Install overflow valve inside to control the normal operation of pump.

内装溢流阀控制泵的正常运行.

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Valve remote control system can control the hydromantic driving unit, valves, gather data from cursors. It can also control cargo pump and ballast pump.

阀门遥控系统采集阀门以及传感器数据，控制液压动力单元、液压阀门，对液货泵及压载泵等进行控制。

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The paper describes a practical example of refitting the butterfly valve control system with PLC at the exit of a Guangzhou Zhujiang Power Plant's circulation pump, accompanied by an analytical explanation of the system's particularities and results obtained, together with a summary of experiences acquired.

介绍广州珠江电厂采用PLC对循环水泵出口蝶阀控制系统进行改造的实例，并从改造方案到控制系统特点、控制效果等方面加以分析，总结改造的经验。

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