Pressure maintaining station for water heating plant - comprises water-tight safety valve in air venting tube

摘要

The pressure maintaining station for a water heating installation has an equalising vessel, whose inside is divided by a rubber membrane (12) into separate air and water compartments. A preset equalising vol. of water is stored under the membrane, and the air compartment is connected to ambient atmos. by a vent pipe (21) with a safety valve (22). ADVANTAGE - No water leakage and risk of corrosion.