In pneumatic position servo system with proportional directional control valve and control cylinder,the centre adjust emt voltage is one of the important factors that influence control precision.
在比例方向阀控缸气动位置伺服系统中,置中电压是影响控制精度的重要因素之一。
This paper introduced theory analysis and test research of the position controlling of electro-hydraulic proportional directional control valve,and established transfer function of this proportional position controlling system,analyzed time-domain attribute and frequency-domain attribute and stability of this system.
对电液比例方向阀位置控制问题进行了理论分析和实验研究,建立了比例位置控制系统传递函数,分别对系统的时域特性,频域特性,稳定性进行了分析,对该类系统的动态性能有重要的影响,并得出了一些有意义的结论。
A Research on Proportional Valve-based Pneumatic Positioning Control of Linear Actuator
基于比例方向阀的直线气缸位置控制研究
Study of Pneumatic Position Control System Based on Proportional Valve of Direction Type;
基于比例方向阀的气动位置控制系统控制策略的研究
Development and Experiment of CAT System for Static and Dynamic Characteristics of Electrohydraulic Proportional Directional Control Valve;
电液比例方向阀综合特性CAT系统的研制及试验研究
Intelligent Fault Diagnose System of Proportional Direction Valve Based on Artificial Immune Algorithm;
基于人工免疫算法的比例方向阀故障智能诊断系统研究
Install valve in the direction of the flow arrows on the valve body.
按照阀体上的箭头方向安装阀门。
hydraulically operated direction control valve
液压操纵的方向控制阀
ball check valve
球形止回阀（附有球阀和阀座的阀门,液体只能单方向通过）
Holding the cage in one hand, push the seat inward and rotate counterclockwise against the cage.
用一只手握住阀笼，向内推阀座并顺、反时针方向旋转阀笼。
Steady-state Fluid Force Direction of Comparative Analysis about Slip Valve and Cone Valve
关于滑阀与锥阀中稳态液动力方向的比较分析
dual way check valve
双向止回阀（双通单向阀）
Discharging Mode Selection of Hydraulic One Way Valve Controlled Pressure-holding Circuit
液控单向阀保压回路的释压方式选择
3-Way Plug Valve 1;3-Way Plug Valve 2;3-Way Plug Valve 3
向旋塞阀 1;3 向旋塞阀 2;3 向旋塞阀 3
Tonner containers have two valves. The container is oriented so the valves are one above the other.
Tonner容器有两个阀门。让容器朝向一定方向，使一个阀门在另一个阀门的上面。
When handling solids in suspension, Wedgeplug valves should be installed with the stem vertical.
当处理滞留的固体颗粒时，楔塞阀应该安装成阀杆垂直向上的方式。
Dynamic Design and Simulation of Proportional Directional Valve with Displacement Feedback Based on the Moving Valve Sleeve
基于动阀套位移反馈的电液比例方向节流阀动态设计与仿真
Check valves must be installed with the inlet in the direction of arrow.
必须按照箭头所指方向安装止回阀的进口。
Locate the heater so that panels and drain valves are accessible.
放置热水器时,要使得热水器的面板和排水阀朝向容易操作的方向。
Holding the cage in one hand, push the seat inward and rotate counterclock-wise against the cage.
用一只手握住止回笼，向内推阀座，面对止回笼反时针方向旋转。