28515 - Flexvent Top air vent Rp ½inch F AAV

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.

• The cap of the Flexvent Super is conical in shape.
• The advantage of this construction is that the clearance between the water level and venting valve is maximized.
• The air escape duct can be opened or closed with an adjusting screw.
• The venting valve forms an integral part of the cap, so that it is impossible to damage the float vent mechanism from outside.