品牌：RETZ瑞茨/我们一直致力于流体控制领域的持续创新，始于2005……进口分步直动式电磁阀是一种直动式和先导式相结合的原理，结构分为活塞式和膜片式，适于用气、水、油、蒸汽、燃气、腐蚀性流体的控制The imported step-by-step direct acting solenoid valve is a combination of direct acting and pilot operated principles, with a structure divided into piston type and diaphragm type, suitable for controlling gas, water, oil, steam, gas, and corrosive fluids
工作原理
常闭：当线圈通电时，电磁力先打开先导孔，主阀活塞上腔压力下降，从而利用压差和电磁力吸动先导阀芯连动主活塞，电磁阀打开。 当线圈断电时，靠弹簧复位关闭先导孔，主活塞上腔增压，推动主活塞向下移动，电磁阀关闭。
Normally closed: When the coil is energized, the electromagnetic force first opens the pilot hole, causing the pressure in the upper chamber of the main valve piston to decrease. Therefore, the pressure difference and electromagnetic force are used to attract the pilot valve core and connect the main piston, causing the electromagnetic valve to open. When the coil is powered off, the pilot hole is closed by spring reset, and the upper chamber of the main piston is pressurized, pushing the main piston to move downwards, and the solenoid valve is closed.
常开：常开与常闭相反 Normally open: The opposite of normally open and normally close |
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