Our Ideal Vacuum XtremeFreez Solenoid Valves are built to withstand the extreme cold of liquid nitrogen LN2 and liquid oxygen service, these valves are cleaned and bagged for high-purity applications. They are electrically operated to automatically start and stop cryogenic flow, they require 120 VAC at 2 Amps. These valves are normally-closed (NC), the actuator is directly mounted to the valve body to minimize movement and reduce wear, the outer body is made of bronze, and has a working temperature range of -350 to 400 degrees Fahrenheit. These solenoid valves are typically used with Liquid Argon, Liquid Nitrogen, or Liquid Oxygen service, they have ½ Inch female pipe thread (FNPT) connections.