应用范围：
The scope of application:
、核工业、船舶重工、石化、电力、化学、轻工、机械、科研、燃气管网、工业窑炉、管道介质自动化控制等领域。
Military industry, nuclear industry, shipbuilding, petrochemical, electric power, chemical, light industry, machinery, scientific research, industrial furnace, gas pipeline, pipeline medium automation control field.
产品特点：
Product features:
外观精美；活塞结构；性能稳定；专制线圈，不易烧毁；适应在爆炸危险场所使用。
The outward appearance is exquisite; piston structure; stability; autocratic coil, is not easy to be burned; used in explosion hazardous areas most suitable.
主要技术参数：
Main technical parameters:
【控制方式】：常开、常闭、自保持式。
[control]: normally closed, normally open, self hold type.
【电源电压】: DC12～220V; AC24～380V。
[]: supply voltage DC12 ~ 220V; AC24 ~ 380V.
【阀体材质】：铸钢、黄铜、铝、四氟乙烯、不锈钢。
Body material: [] cast steel, brass, aluminium, stainless steel, ptfe.
【适用介质】：水、气、油、腐蚀流体等。
[suitable medium: water, oil, and gas], corrosive fluid.
【压力范围】：0～200MPa
[] pressure range: 0 ~ 200MPa
【温度范围】：(-200、-50）～（+120、+200、+250）
Temperature range: [] (-200, -50) ~ (+120, +200, +250)
0～（+300、+450、+600）℃。
0 - (+300, +450, +600) C.
【介质粘度】：小于50C St(大于时需定制）。
[]: medium viscosity of less than 50C St (more than required custom).
【防护性能】：防尘、防水、防爆。根据工况选择。
[]: protective performance of dust, waterproof, explosion-proof. According to the working condition selection.
【接线方式】：接线座式；引线式。
[]: wiring terminal; lead type.
【连接方式】：法兰、焊接、内螺纹（外螺纹和特殊接口可定做或加转接头）。
[]: flange connection, welding, internal thread (thread and special interface can be customized or adapter).
工作原理：
Working principle.
常闭：当线圈通电时，电磁铁芯吸合，卸压孔打开，主活塞由介质压力推动，打开主阀口，介质流通。
Normally closed: when the coil is energized, the solenoid core pull, pressure relief hole is opened, the main piston driven by the pressure of the medium, the main valve port is opened, the media flow.
当线圈断电时，主阀口关闭，介质截止。
When the coil power, the main valve port closed, medium stop.
常开：当线圈通电时，电磁铁芯吸合，卸压孔关闭，主活塞由介质压力推动，关闭主阀口，介质截止。
Normally open: when the coil is energized, the solenoid core pull, pressure relief hole is closed, the main piston driven by the pressure of the medium, close the main valve port, media cutoff.
当线圈断电时，主阀口打开，介质流通。
When the coil power, the main valve port open, medium flow.