The Sime murelle manual air vent is a safety device within the central heating unit. They work by using floatation to release an accumulation of air. As water flows through the heating and cooling system, a float within the automatic air vent opens or closes depending on the water level.
Fits multiple appliances
Technical specification
Waist Sizeac49cf14fwERP RatingNot ApplicableSupplier Part Number6017212Brand NameSime