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Water heater tank Galmet SGW(S) Maxi 500 L with 6.0 m² spiral heat exchanger, standing, polyurethane insulation
The Galmet SGW(S) Maxi 500 L is a freestanding domestic hot water storage tank designed for integration with central heating systems, solar installations or external boilers. The model features a built-in spiral (coil) heat exchanger with a 6.0 m² surface area to transfer heat efficiently from an external heat source into the stored water. The cylinder is insulated with polyurethane foam and finished with a skay outer layer to reduce heat loss and provide a durable external surface suitable for plant rooms and utility spaces.
The integrated 6.0 m² spiral heat exchanger enables effective heat transfer for rapid recovery of stored hot water while remaining compact within the 500-litre capacity. Polyurethane insulation minimises standby losses and improves energy efficiency of the hot water system. The standing design simplifies installation and connection to floor-level piping; internal construction is intended for domestic and light-commercial hot water supply applications. The skay finish offers a washable outer surface that is resistant to common mechanical wear in technical environments.
Install the tank on a level, load-bearing floor close to the heat source and the distribution piping. Connect the spiral heat exchanger inlet and outlet to the external heat source according to the system design, ensuring appropriate flow direction and pump sizing for the exchanger surface area. Fill the tank with potable water and vent any trapped air before commissioning. Follow local regulations for water treatment, pressure relief, safety valves and electrical connections when integrating the tank into the building’s hydraulic and control systems.
For optimal performance, match pump flow rates and heat source output to the 6.0 m² exchanger area and maintain recommended water treatment to avoid scaling inside the coil. Periodic inspection of insulation integrity and external finish will help sustain thermal performance and service life.
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