Three-way Univent is designed for use on vented hot water systems to ensure that there is always a direct connection from the boiler/ calorifier to the atmosphere. Made from body materials resistant to stress corrosion cracking, it can be used for single or multi-boiler installations.
In-line servicing, using Univent replacement cartridges, allows valve maintenance to be carried out without disturbing the pipework.
The Univent can be opened and closed using the integral hand wheel. To close the drain port and open the vent, turn the handwheel clockwise to its full travel. Turn the handwheel anti-clockwise to open the drain and close the vent.