On a header-tank system: Air can enter the system through micro-gaps in joints etc, without a leak, but in some cases a leak could lead to air collecting in one radiator. In those cases fitting an Autovent might delay the identification of a leak. On such systems, NLB recommends that Autovents should be fitted to installed radiators that have a history of collecting air if no leak in the system has been identified. The HV30 model or OEM model (Original Equipment Manufacturer) is a lower cost ½” BSP version with exactly the same mechanism inside, lasting the same amount of time.

Also can be used when you need to isolate a mains water feed to a multi-occupancy building or to maintain a component in a heating system. Save Time and InconvenienceYou have several options if you cannot find your inside stop valve or if it's faulty and needs to be repaired. Install a permanent isolation valve called an Aladdin valve. This can be installed on hot water or cold water pipes in around 5 minutes and can be done without turning off your water.

We have two 6mm models. One is called the Micro Barlo which has an extended length thread and a conical tip. The other is the Micro 6mm which has a short 6mm thread. Unable to freeze flow of water, you can still install EasyFit to pipes with moving water, without the need to turn off the main external / internal service valve. The standard radiator tapping size for Panel Radiators and Towel Radiators (80% of market) is the ½” BSP tapping. Once your radiator begins to feel cold at the top, air has begun to build and the Autovent needs to be replaced. Our Autovents have a unique patented design which means at the end of the product life they will seal shut. 5) Don’t all Automatic De-aeration valves leak?Yes, this is possible. Some plumbers suggest that on the suction side of the pump micro-gaps in joints could allow air ingress, yet when the pump is off (and the pressure equalises to the c. 1.6 bar of normal operation) the micro-gaps are too small to allow water egress. 10) Can corrosion inhibitors be used with an Autovent? If a system continues to lose pressure after the first 2 weeks or so of being filled, this can only be due to water loss, i.e a leak. 9) On a Closed system, can a radiator continue to collect air without there being a water leak?

Aladdin Autovents reduce the volume of air/gas in radiators and helps to maintain their thermal efficiency, thereby reducing the fuel and energy usage. If isolating a mains water feed in a multi-occupancy building, save time notifying and inconveniencing neighboursIt may take a few turns to turn the water on. It may also take a few minutes for the water to start running from your taps, as it will need to run through the pipes again. Your property will likely have several stop valves inside your home. You will likely be able to turn off your water for the room or area of your property where you have a leak, or you’re doing some plumbing. This means you can continue to use your water in the remaining rooms of your property. Yes, the EasyFit Isolator is designed to be fitted to live pipes hot up to 85°C or cold pipes. 2. When the EasyFit Isolator cuts into the pipe what happens to the piece of pipe which is removed? A CenterRad Centerbrand radiator has a little well on the end of the roll top radiator facing end out from the radiator. This also uses the Micro Barlo. This valve needs no oring seal but seals on the cone end of the valve stem. BSP (British Standard Pipe) plumbing thread allows a ½” tube to pass inside the thread which approximately has a 20.8 mm outside thread on it. The inside is around 18.6 mm and inside that size a ½” 12.7mm pipe will pass.