Buffer tank Galmet 300 L SG(B) unenameled without coil, insulated Skay V.2

Galmet 300 L buffer tank SG(B) unenameled without coil, insulated Skay V.2 is a 300-litre hydraulic buffer vessel designed for closed-loop hydronic heating systems. The tank provides thermal storage and hydraulic separation between heat sources and distribution circuits. Constructed as an unenameled steel cylinder without internal heat exchanger, it is intended to work with boilers, heat pumps and solar thermal installations. External Skay V.2 insulation reduces standby heat losses and supports more stable system operation.

Advantages

The buffer tank offers a compact 300 L capacity that evens out temperature fluctuations and reduces short-cycling of heat generators. Being unenameled and without an internal coil, the vessel is suitable for systems where separate heat exchangers or external coils are used. External Skay V.2 insulation gives improved thermal retention compared with an uninsulated tank, while the simple internal design facilitates maintenance and inspection. The product supports straightforward integration into existing hydronic circuits and can contribute to more consistent temperature delivery.

Suitable for

• Hydronic heating systems with boilers
• Heat pump installations requiring hydraulic separation
• Solar thermal systems used as storage buffer
• System upgrades where an internal coil is not required

Key specifications

• Nominal volume: 300 litres
• Type: unenameled storage vessel without internal coil
• Function: thermal storage and hydraulic separation
• Insulation: Skay V.2 external layer to reduce heat loss
• Compatibility: designed for integration with boilers, heat pumps and solar thermal circuits
• Installation orientation: vertical cylindrical tank

How to use

Install the buffer tank according to local codes and the heating system design, ensuring correct hydraulic connections for supply, return and any necessary sensors or fittings. Mount the tank in a vertical position on a stable base and connect to the heating source and distribution circuits with appropriate pipework and safety devices. Commission the system by filling, venting air from the circuit, and checking for leaks and correct flow direction. Configure control settings on the boiler or heat pump to use the buffer volume for load leveling and to prevent frequent cycling.

Usage recommendations

Use corrosion inhibitors or appropriate water treatment when required by the installation, and fit external safety and monitoring devices (pressure relief, temperature sensors) as specified by the heating system designer. For systems requiring domestic hot water heat exchange, pair this unenameled tank with a separate heat exchanger or indirect cylinder. Regularly inspect insulation integrity and external connections to maintain performance.