4WRE(E)-2X进口比例换向阀 功能说明 Function description

4WRE(E)-2X比例换向阀通径6、10/压力至31.5MPa/流量至180L/min  4wre (E) - 2x proportional directional valve, diameter 6, 10 / pressure to 31.5Mpa / flow to 180L / min

4WRE（E）.-2X…型阀为直控式比例方向阀，板式结构；由可单独拆卸线圈的螺纹比例电磁铁控制；电磁铁的控制可以通过外部放大器（WRE-2X型）或内置放大器（WREE-2X型）。该阀由阀体（1）、阀芯（2）、弹簧（3）、弹簧座（4）、比例电磁铁（5）、位移传感器（6）及可选内置放大器（7）组成 retz品牌 4WRE（E）.- 2X... Type valve is a direct control proportional directional valve with plate structure; Controlled by a screw proportional electromagnet with a detachable coil; The electromagnet can be controlled by an external amplifier (wre-2x type) or a built-in amplifier (wree-2x type). The valve is composed of valve body (1), valve core (2), spring (3), spring seat (4), proportional electromagnet (5), displacement sensor (6) and optional built-in amplifier (7)

WRE（E）-2X型三位阀电磁铁未通电时，阀芯（2）由复位弹簧（3）保持中位。当电磁铁A通电时，电磁铁推杆直接推动阀芯（2）右移，位移量与电信号成正比，使阀芯的R槽逐渐打开，从而控制液流流量，若断电时阀芯靠复位弹簧复位  When the solenoid of wre (E) - 2x three position valve is not energized, the valve element (2) is held in the middle position by the return spring (3). When the electromagnet A is energized, the electromagnet push rod directly pushes the valve core (2) to move to the right, and the displacement is proportional to the electric signal, so that the R groove of the valve core is gradually opened to control the liquid flow. If the power is cut off, the valve core is reset by the reset spring

4WRE…A-2X…两位阀与三位阀结构原理相同。只是这类阀只有一个电磁铁“a”，第二个电磁铁的位置装上一个丝堵（10）4wre... A-2x... Two position valve and three position valve have the same structure and principle. This type of valve only has one electromagnet "a", and a screw plug (10) is installed at the position of the second electromagnet

4WRE（E）…-2X…比例换向阀采用板式连接，弹簧对中；阀体采用铸造内流道通流能力强，重复精度好，底板安装尺寸与电磁阀相同，通用性好；广泛应用于机床、轻工、冶金、矿山、航天等各领域  4wre (E)... - 2x... Proportional directional valve adopts plate connection and spring centering; The valve body is made of cast inner flow channel with strong flow capacity and good repeatability. The mounting size of the bottom plate is the same as that of the solenoid valve, with good versatility; It is widely used in machine tools, light industry, metallurgy, mining, aerospace and other fields

注意 Note:

1.对于4WRE（E）…-2X…型阀，必须避免回油管路中的由全部排空，必要时在回路中安装背压阀（背压约为0.2MPa）For 4wre (E)... - 2x... Type valve, it is necessary to avoid all the oil in the oil return pipeline from being emptied. If necessary, install a back pressure valve in the circuit (the back pressure is about 0.2MPa)

2.通过（8）可以进行机械零位调整；对于4WREE型通过（9）可进行电气零位调整。（出厂前已调好请勿随意调动）The mechanical zero position can be adjusted through (8); For 4wree type, the electrical zero position can be adjusted through (9). (it has been adjusted before leaving the factory. Please do not adjust it at will)

性能特点 Performance characteristics

●直动式比例阀可用于控制流量和方向 Direct acting proportional valves can be used to control flow and direction

●带电反馈 Live feedback

●通过螺纹比例电磁铁实现，线圈可单独拆卸  Realized by screw proportional electromagnet, the coil can be disassembled separately

●板式连接，阀芯由弹簧对中 Plate connection, valve core centered by spring

●带内置放大器，4WREE型的输入可选A1或F1  With built-in amplifier, 4wree type input can be A1 or F1

机能符号 Functional symbol

型号说明 Model description

技术参数 Technical parameter

慨述 Express with regret

液压部分（在P=10MPa，矿物油40℃±5℃时测得）

电器部分 Electrical part

放大器的电器参数  Electrical parameters of amplifier