Flamco carries a wide range of expansion vessels, equipped with innovative technology. Both the steel shell and the membrane are made of top quality materials and guarantee a long service life. The Airfix D Expansion Vessels are 'through-flow' vessels, meaning that they are specially constructed so that they regularly 'rinse' themselves with fresh mains water. In this way, still, stagnant water, which is associated with the formation of detrimental bacteria, such as legionella is eliminated from the water supply. As a result, the quality of the potable water is maintained. As the interior of the vessel is especially coated there is no chance of the water coming into contact with untreated steel even in the event of damage to the internal diaphragm.
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Flamco Data Sheet