DC 12V 1/4" Quick connect Solenoid valve.
Turn on water when system start;and cut off water when system stop.
Working pressure:0.02-0.8Mpa. Its working temperature:32-158℉ (0-70℃).
It will become hot because there are so many coils inside. It’s normal and safe phenomenon. The highest working temperature of this product reaches 60℃. If you want it works long hours, you should find a N/O normally open solenoid valve.