Storage tank Sunsystem PSM50 suspended 50 L for closed heating and solar systems

Suspended storage tank Sunsystem PSM50 is a compact 50 L buffer vessel designed for closed heating and solar systems. The wall-mounted tank provides hydraulic separation between primary and secondary circuits, stores thermal energy and helps reduce short-cycling of heat sources. Intended for small residential installations, the unit supports integration with boilers, heat pumps and solar thermal loops, offering a space-saving solution that enhances system stability and heat exchange efficiency.

Advantages

The Sunsystem PSM50 tank combines compact dimensions with 50 litres of usable storage capacity, allowing installation in limited spaces such as boiler rooms or utility closets. By providing hydraulic separation, it reduces pressure fluctuations and protects circulating pumps and control valves. Wall-mounted design simplifies mounting and saves floor area, while internal corrosion protection and proven construction improve long-term reliability and reduce maintenance needs.

Suitable for

• Small residential heating systems with a single boiler or heat pump
• Domestic solar thermal installations and solar loop buffering
• Systems requiring hydraulic separation and stabilization of pump operation
• Compact installations where floor space is limited

Key specifications

• Storage capacity: 50 litres
• Mounting type: wall-suspended
• Application: closed heating and solar thermal systems
• Primary functions: hydraulic separation, thermal buffering, pressure fluctuation damping
• Compatibility: intended for use with boilers, heat pumps and solar loops
• Typical installation location: boiler room, utility room, or service wall

How to use

Install the Sunsystem PSM50 storage tank on a suitable load-bearing wall at a height and position that allow safe connection of piping and access for maintenance. Connect the primary and secondary circuits following hydraulic schematics provided by the heating system designer, ensuring correct placement of flow, return and safety components such as check valves, isolation valves and expansion vessels where required. Commission the system according to local regulations, flush and fill with the appropriate heating fluid, bleed air from the circuits and verify correct pump operation and temperature differentials to confirm effective buffering.

Usage recommendations

For reliable operation, use the tank in closed systems with appropriate antifreeze or inhibitor fluids when required by climate. Schedule periodic inspections of mounting fasteners, connections and corrosion protection, and follow manufacturer or installer guidance for system commissioning and maintenance to maintain optimal hydraulic separation and thermal storage performance.