John Guest Speedfit 15mm Pushfit Auto Airvent

ManoMano

When air becomes trapped in a sealed heating system it can cause a wide variety of problems including excessive noise, corrosion and increased maintenance costs as it also can cause air locks and prevent the system from operating effectively and efficiently. Automatic air vents are most suited for heating systems and other closed circuit hot water systems which require an efficient and automatic removal of air whilst the system fills with water. A vacuum break is fitted onto the bottom of the valve in order to prevent an air lock forming and encourages air to be released from the water within the system. The Reliance Automatic Air Vent are high-quality solid brass & heat resistant polypropylene to provide long life and durability in heating systems to help vent air when commissioning a system. Available with MBSP, compression or push-fit connections. Automatically vents trapped air from within sealed heating systems Robust solid brass construction and heat resistant polypropylene

Zoro Tools

The Reliance Automatic Air Vent is mounted on the heating system to automatically bleed air from the heating system. The gadget is made out of a polypropylene float coupled to a simple valve. When the amount of air trapped within the float chamber reaches a predetermined level, the float descends, opening the valve and releasing the trapped air. As the air is released, water replaces it and causes the float to return to the up position, closing the valve. The Automatic Air Vent is offered with compression and push-fit connecting ends. The new range, which incorporates JG Speedfit, can be installed and removed without the need of tools, making it even easier and faster to install, maintain, or replace valves.