COMMERCIAL PLUMBING & HEATING
MANUFACTURER - ALTECNIC
Mark Mogey, Altecnic.
MARK MOGEY, HEAD OF OEM SALES & ROI AT ALTECNIC, EXPLORES IN DETAIL THE ROLE OF A FLOW-THROUGH EXPANSION VESSEL IN PREVENTING HARMFUL BACTERIA BUILD UP IN POTABLE WATER SYSTEMS…
All you need to know about flow-through expansion vessels
W hilst a flow-through vessel can be used effectively on any potable water system, they are particularly useful in healthcare, education, hotel, hospitality and other public use settings. WHAT IS A FLOW-THROUGH EXPANSION VESSEL? Flow-through expansion vessels are designed to keep potable water moving through a system to prevent any stagnation or contamination. The innovative design encourages flushing through the vessel, greatly reducing the
opportunity for clusters to form. How do flow-through vessels work? In a closed hot water circuit, the water cannot be compressed, so any increase in volume created by an increase in temperature has to be accommodated by an expansion vessel. When water is cold, the pre-charge pressure forces the bladder to collapse until the pump is started, when the bladder starts to inflate. As the temperature in the system increases, with the associated increase in pressure and volume, the expanded water enters the bladder creating additional volume and lowering the pressure. When
Flow-through vessel with Flowjet valve.
FLOWJET
T-PIECE
“Flow-through vessels are particularly useful in healthcare, education, hotel, hospitality and other public use settings.”
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26 | PLUMBING & HEATING MAGAZINE
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