工作原理 working principle

当线圈（1）通电，动铁芯（2）吸合，先导阀口（3）处于开启状态，使主阀塞（4）上腔降压，主阀塞（4）因压差开启，介质流通

When the coil (1) is energized, the moving iron core (2) is closed, and the pilot valve port (3) is in an open state, causing the upper chamber of the main valve plug (4) to decrease pressure. The main valve plug (4) opens due to the pressure difference, and the medium flows through

当线圈（1）断电，动铁芯（2）靠弹簧复位，先导阀口（3）处于关闭状态，使主阀塞（4）上腔升压，将主阀塞（4）压下，电磁阀关闭 When the coil (1) is powered off, the moving iron core (2) is reset by the spring, and the pilot valve port (3) is in a closed state, causing the upper chamber of the main valve plug (4) to increase pressure. The main valve plug (4) is pressed down, and the solenoid valve is closed

采用分步两次直动导向活塞式高压式结构电磁阀主要使用在高压流体，它需要一定压力才能正常工作

The electromagnetic valve adopts a two-stage direct acting piston type high-pressure structure, which is mainly used in high-pressure fluids and requires a certain amount of pressure to work properly

技术参数

规格：1/4-4"  Specification: 1/2-12“

阀体材质：不锈钢 Valve body material: stainless steel

介质温度：-200～＋350℃ Medium temperature: -200~+350 ℃

压力等级：5-3000bar Pressure rating: 5-3000bar

介质粘度：小于50C St（大于时需定制）Medium viscosity: less than 50C St (customized if greater than)

防护性能：防水、防爆（Exd IICT5）、防腐 Protective performance: waterproof, explosion-proof (Exd IICT5), anti-corrosion

接线方式：接线座式；引线式；插头式 Wiring method: wiring base type; Lead type; Plug type

控制方式：常开、常闭 Control mode: normally open, normally closed

电源电压：DC24～127V；AC36～380V Power supply voltage: DC24~127V; AC36～380V

连接方式：螺纹、法兰（外螺纹和特殊接口可定做或加转接头）Connection method: thread, flange (external thread and special interface can be customized or equipped with adapter)

适用介质：水、气、油、蒸汽、燃气、腐蚀流体等 Applicable media: water, gas, oil, steam, gas, corrosive fluids, etc

产品特点 Product Features

分步两次直动导向活塞式，阀芯均为不锈钢活塞，活塞环不会被介质中的杂质卡死，动密封性能高Direct acting guide piston type in two steps, the valve core is stainless steel piston, the piston ring will not be stuck by impurities in the medium, and the dynamic sealing performance is high

活塞与金属阀腔不产生直接摩擦，阀体安装方向无限制 There is no direct friction between the piston and the metal valve chamber, and the installation direction of the valve body is unrestricted

线圈不易烧毁，长时间停止动作重新启动，动作同样灵敏 The coil is not easy to burn out, and if it stops for a long time and restarts, the action is equally sensitive

泄漏量零，使用寿命长达100万次以上 Zero leakage, with a service life of over 1 million times

控制方式 Control mode

1.常闭：当线圈通电时，先导阀芯吸合，先导孔打开，阀上腔卸压，活塞靠下腔介质压力推动，电磁阀打开。当线圈断电时，先导阀芯靠弹簧复位，先导孔关闭，阀上腔由活塞节流孔增压和复位弹簧的推力，电磁阀关闭。

Normally closed: When the coil is energized, the pilot valve core is closed, the pilot hole opens, the upper chamber of the valve is depressurized, the piston is pushed by the medium pressure in the lower chamber, and the solenoid valve opens. When the coil is powered off, the pilot valve core is reset by the spring, the pilot hole is closed, and the valve upper chamber is pressurized by the piston orifice and the thrust of the reset spring, and the solenoid valve is closed

2.常开：当线圈通电时，先导阀芯靠弹簧复位，先导孔关闭，阀上腔由活塞节流孔增压和复位弹簧的推力，电磁阀关闭。当线圈断电时，先导阀芯靠弹簧复位，先导孔打开，阀上腔卸压，活塞靠下腔介质压力推动，电磁阀打开。

Normally open: When the coil is energized, the pilot valve core is reset by the spring, the pilot hole is closed, and the valve upper chamber is pressurized by the piston orifice and the thrust of the reset spring, and the solenoid valve is closed. When the coil is powered off, the pilot valve core is reset by the spring, the pilot hole is opened, the upper chamber of the valve is depressurized, the piston is pushed by the medium pressure in the lower chamber, and the solenoid valve opens.

注：出口端压力大于进口端压力，介质会反向导通。可安装止回阀。

Note: If the outlet pressure is greater than the inlet pressure, the medium will conduct in the opposite direction. Can be installed with a check valve

流量示意图 Flow diagram