Brand:
Description:
They are used in heating systems (the 3 bar models) or in sanitary installations for cold and hot water (the 6 bar models) to control system pressure. Connection size 1/2 inch.
When the valve reaches the calibrated pressure ( 3 bar or 6 bar depinde de model ), it opens, releasing air to ensure that the system pressure does not reach a level that would endanger the installation.
They allow the attachment of a 1/4" pressure gauge.