应用范围：
它**应用于船舶重工、测试设备、加热设备、液压设备等，工作温度在300℃以上的导热系统中。

产品特点：
阀芯均为不锈活塞式，活塞环用特殊耐温、**材料制作；活塞与金属阀腔不产生直接摩擦，阀体安装方向无限制；**线圈，并采用散热的结构方式，因此不易烧毁；长时间停止动作重新启动，动作同样灵敏；启动压力0.2MPa。

主要技术参数：

工作原理：
常闭：当线圈通电时，先导阀芯吸合，先导孔打开，阀上卸压，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，阀关闭。
常开：当线圈通电时，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。

规格尺寸：

注：出口端压力大于进口端压力，介质会反向导通。可安装止回阀或订制自带止回功能的阀。

Appli**ions:
It is widely used in shipbuilding He**y Industry, test equipment, heating equipment, hydraulic equipment, the wo**ng temperature above 300 ℃ thermal systems.

Features:
Are stainless steel piston va**e, piston ring with a special temperature, wear-resistant material; piston va**e chamber with the metal does not h**e a direct friction, the va**e mounting direction unlimited; special coil structure and way of using heat, it is not easy bur**; long time to restart the s**ped action, action as sensitive; minimum starting pressure 0.2MPa.

Main technical parameters:

How it works:
NC: When the coil is energized, the pilot spool pull the pilot hole to open, pressure relief va**e, piston push media pressure on the lower chamber, the electromagnetic va**e is ope**; When the coil power, the pilot va**e by the spring return, pilot hole Close the va**e on the throttle chamber pressurized by the piston return spring and thrust, the va**e closed.
Normally Open: When the coil is energized, the pilot hole closed, the va**e chamber and pressurized by the piston return spring throttle thrust, the electromagnetic va**e is closed. When the coil power, the pilot va**e by the spring return, pilot hole open, pressure relief va**e on the chamber, medium pressure piston push the lower chamber, the electromagnetic va**e is ope**.

Size:

Note: The outlet pressure is greater than the inlet pressure, the media will pass anti-wizard. Can be installed or custom built non-return