• 1. normally open valve: 常开阀 | 常开式电磁阀 | 常开触点
• 2. normally open solenoid valve: 常开式电磁阀 | 常开电磁阀
• 3. Normally y open valve: 常开阀

• 1.Normally Open: When the coil is energized, the pilot hole closed, the valve chamber and pressurized by the piston return spring throttle thrust, the electromagnetic valve is closed.
  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。
  dict.yoduao.com
• 2.Valve types include Normally Open and Normally Closed valves, for use in fuel, hydraulic, or pneumatic applications.
  阀门有常开和常闭两种，可用于燃油，液压或气动应用领域。
  dict.yoduao.com
• 3.This valve is normally automatic work, in a direction of flow of fluid under pressure, open the flap valve;
  通常这种阀门是自动工作的，在一个方向流动的流体压力作用下，阀瓣打开；
  dict.yoduao.com

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