Product Data Sheet (2018-04-23)


The compact, proven design has high efficiency and guaranteed operation for heating and air conditioning.
The water within the installation contains air which can form corrosion and reduce the thermal transfer. A Flexvent is fitted at places
where the air collects.
Float operated, the air is collected in the Flexvent causing the float to drop and open the air release valve. The water pressure then
pushes the air out, the float rises and closes the valve.
The air cushion in the upper part of each Flexvent protects the valve seat against contamination.

• With protective cap including expansion sealer rings to prevent leaks.
• Substantial distance between the water and the closing mechanism, reducing the chance of contamination.
• Most types are equipped with a shut-off valve for easy fitting and dismantling.
• A Flexvent float vent is easy to fit in any installation due to its very small dimensions.
• The relatively large air cushion at the top of each type of Flexvent float vent protects the valve seat sufficiently against
contamination, so that the Flexvent will not leak.
• To guarantee top quality, we test all Flexvents before they leave our facility!

Technical information
• Minimum/Maximum working temperature: -10 °C / 90 °C (peak load: 120 °C).
• Minimum/Maximum working pressure: 0.2 / 6.0 bar (peak load: 10.0 bar).
• Suitable for addition of glycol-based anti-freeze up to 50%.

Find more information online:
CAD drawings
Extra documentation


Flamco Limited
Washway Lane
WA10 6PB, St Helens, Merseyside – gb
T 017 447 447 44
F 017 447 447 00

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