Normally open solenoid valves is the valve stays open unless energized. When energy is applied, they immediately close, and stay that way as long as energized. Because of the way they close, these are not intended for continuous use of more than a few hours. They are a great choice for situations where a valve needs to only close for short spurts, and should remain open most of the tan .
Operasyon valv la nòmalman louvri se itil nan sitiyasyon kote li nesesè kenbe likid yo ap koule tankou dlo nan tout tan . Yon bon egzanp se gwo kay won an refwadisman nan yon sistèm endistriyèl ki ta dwe toujou sou pou fè pou evite surchof . Reparasyon .
