Central Heating Manual Air Vent

The mechanism works like the air valve on a bicycle tire.

Central heating manual air vent.

These manually operated hot water heating system air vents are kept closed except when manually bleeding air from the system. Using a pen or small screwdriver if you push down on the stem holder to un seat the spring closed valve you ll vent the air pocket. When you unscrew the air vent cap you will see inside a small white plastic stem holder. Measures 11mm across the flats of the hexagonal part the screw thread has a diameter of 7mm.

Our line includes products such as high capacity air vents that provide automatic air venting for hot or cold water distribution systems and models with a manual vent feature for fast venting of residential and commercial systems. Your browser is out of date. A dry valve acts as an air vent until a dribble of water passes through it and swells the cartridge. Update your browser to view this website correctly.

Update my browser now. But before rushing over to one of those cold radiator or baseboard fix it articles check the article summary. Have a question or two. Air vents air vents are designed for use on heating systems.

A characteristic of these valves is that they function best on the hot delivery side of a radiator and may not open as vents unless the water supply is hot. Manual air vent 1 8 bsp products accessories more accessories bungs and vents manual air vent new zealand institute of central heating. If the valve dries out again it re opens.