品牌：RETZ瑞茨/我们一直致力于流体控制领域的持续创新，始于2005……进口真空直动式电磁阀广泛应用真空泵等设备上，电磁阀与泵并联在一起受泵的开关控制，当泵的开启或者停止时，同步控制了不锈钢直动式真空电磁阀的开启与关闭。当泵停止工作或电源突然中断时，真空电磁阀能自动将系统封闭，并将大气通过泵的进气口充入泵腔，避免泵油返流污染真空系统。真空电磁阀适用的工作介质为空气及非腐蚀性气体
The imported vacuum direct acting solenoid valve is widely used in equipment such as vacuum pumps. The solenoid valve is connected in parallel with the pump and is controlled by the pump's switch. When the pump is started or stopped, it synchronously controls the opening and closing of the stainless steel direct acting vacuum solenoid valve. When the pump stops working or the power supply is suddenly interrupted, the vacuum solenoid valve can automatically close the system and charge the atmosphere into the pump chamber through the pump's air inlet, avoiding the return flow of pump oil from polluting the vacuum system. The working medium suitable for vacuum solenoid valves is air and non corrosive gases
工作原理 working principle
进口真空直动式电磁阀常闭型 retz Imported large direct acting solenoid valve, normally closed type
断电时呈关闭状态，当线圈通电产生电磁力，使动铁芯克服弹簧力和静铁芯吸合直接开启阀口，介质通过；当线圈断电时电磁力消失，动铁芯在弹簧力的作用下复位，直接关闭阀口，介质不通。
When the normally closed type is powered off, it is in a closed state. When the coil is energized, electromagnetic force is generated, causing the moving iron core to overcome the spring force and the static iron core to directly open the valve port, and the medium passes through; When the coil loses power, the electromagnetic force disappears, and the moving iron core recovers under the action of spring force Position, directly close the valve port, medium blocked
技术参数 Technical parameter
大通径，多种密封形式可选 Large diameter, multiple sealing forms available
可按需提供多种板接方式 Multiple board connection methods can be provided as needed
结构简单，动作可靠，开关速度快，在零压差和微真空下正常工作 Simple structure, reliable action, fast switching speed, and normal operation under zero pressure difference and micro vacuum
动作类型 | 直动型 |
控制方式 | 常闭式(标准)、常开式(可选) |
连接口 | G(标准）、NPT、Rc底板连接（可选） |
适用介质 | 中性介质，气态或液态流体 |
流体黏度 | ≤21mm²/s |
阀体材质 | 黄铜、不锈钢 |
密封 | NBR(标准)、FKM、EPDM(可选) |
介质温度 | NBR:-10～+80℃ FKM:-10~+110℃ EPDM:-20～+120℃ |
环境温度 | -10～50℃(防爆型-20℃~40℃) |
标准电压 | AC220V(50-60Hz)、DC24V(0Hz) |
电压变化 | ±10% |
防护等级 | IP65 |
安装方式 | **使线圈朝上 |
可选配置 | 防爆型、降温节能线圈/接线盒,定时开关、手动装置 |
规格尺寸 | G3/8-G3/4、G1/2-F100 |
适应压力 | 0-1.0Bar |
