应用范围：
**应用在航天、船舶重工、**化工、给排水、消防设备、食品**设备、清洗设备、景观喷灌、加湿设备、液压设备、测试设备、水厂等,工作压力在6.4---100MPa的管道系统中。

产品特点：
阀芯均为不锈钢活塞式，活塞环不会被介质中的杂质卡死，动密封性能高,寿命长；活塞与金属阀腔不产生直接摩擦，阀体安装向无限制；**线圈，不易烧毁；长时间停止动作重新启动，动作同样灵敏；启动工作压力0.5MPa。

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，阀腔由活塞节流孔增压和复位弹簧的推力，电磁阀关闭。
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:
Widely used in aerospace, shipbuilding He**y Industry, petrochemical, water, fire fighting equipment, food and medical equipment, cleaning equipment, landscape irrigation, humidifi**ion equipment, hydraulic equipment, testing equipment, water plant, the work pressure in the pipeline 6.4 --- 100MPa system.

Features:
Spool is stainless steel piston and piston rings will not be stuck impurities in the medium, dynamic sealing performance and long life; piston va**e chamber with the metal does not produce direct friction, the va**e installed to the limit; authoritarian coil, easily bur** ; for a long time to restart the s**ped action, action as sensitive; minimum start wo**ng pressure 0.5MPa.

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 on the chamber, the piston on the lower chamber medium pressure to promote, the electromagnetic va**e is ope**; When the coil power, the pilot va**e by the spring return, pilot hole closed throttle va**e chamber pressurized by the piston return spring and thrust, the electromagnetic va**e is 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, the piston on the lower chamber medium pressure to promote the solenoid va**e open.

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 va**e function of the va**e.