Auto air vent (3/8") with shut off valve and manual vent feature. Positioned at high points in the system (e.g. on top of thermal stores), the automatic air vent releases the collected air. Features a fast purge function for filling thermal store cylinders.

• Automatic and manual air vents
• Supplied with automatic shut-off valve
• Body and cover are brass construction
• Air vent with silicone rubber seal
• Impurities do not usually affect function as maximum float line of water is always lower than the valve seal
• Float is high temperature resistant polyethylene
• Suitable for use with glycol systems

For use with Nu-Heat cylinders, buffer tanks, and pipework.