1/2" Combined Safety & Non-Return Valve extension - 25mm Water Seal

- 25mm Water Seal

They are also vital components in (to name but a few): underfloor heating systems

- Drain cleaning products should not be poured down the Magna Valve

- Includes 3 LED indicators - Green = normal

1/2" Combined Safety & Non-Return Valve extension - 25mm Water SealDESCRIPTION: A safety valve is designed to relieve any pressure in a heating system where the component are unable to accommodate any rapid and excessive pressure build up. Either type of valve should be fitted as close to the boiler as possible, and should incorporate a " pipe connection which enables discharge to a point outside of the building. It should discharge in a position which is noticeable, BUT NOT where any discharge may cause bodily