DIGITEN 24V 3/8 Inlet Feed Water Solenoid Valve Quick Connect for RO Reverse Osmosis DC 24V 3/8" Solenoid valve. Suitable for 3/8" tube. Working pressure:0.02-0.8Mpa. Rated power:4.8W. It will become hot when it works because there are so many coils inside. Its normal and safe phenomenon. The highest working temperature of this product reaches 60.