Mecalia DPI/DIM 50-Liter Wall-Mounted Buffer Tank

The Mecalia DPI/DIM wall-mounted buffer tank 50 liters, reference 02141, is designed for the storage of cold or hot water in closed primary circuits for heating and HVAC installations. Made of AISI 304 stainless steel, it offers a 50-liter capacity, a working pressure of 6 bar, and a practical vertical wall-mounted format, especially suitable for installations where optimizing available space is essential.

This buffer tank can be integrated into systems powered by a heat pump, solar energy, or boiler, providing additional water volume to the hydraulic circuit. Its compact size makes it especially interesting for aerothermal, heating, and HVAC installations with moderate storage needs.

Important: this is a tank intended for technical water in the primary circuit, operating in a closed loop, so it is not suitable for the direct storage of domestic hot water (DHW).

50-liter wall-mounted buffer tank

The Mecalia DPI/DIM 50 has a nominal capacity of 50 liters and belongs to the manufacturer's range of stainless steel buffer tanks.

Its wall-mounted installation configuration allows it to be fixed vertically to the wall, freeing up useful floor space in the technical room. This feature is especially advantageous in homes, plant rooms, and technical spaces with limited dimensions.

According to the official Mecalia price list, reference 02141 has dimensions of 450 mm in diameter and 700 mm in height.

Made of AISI 304 stainless steel

The tank body is made of AISI 304 stainless steel, a material used by Mecalia in this range of buffer tanks for closed hydraulic circuits.

Its construction is designed to store technical water, both hot and cold, allowing the same type of tank to be used in heating installations and reversible HVAC systems.

Ideal for heat pump and aerothermal installations

The Mecalia DPI/DIM buffer tank can be integrated into installations with a heat pump or aerothermal system to increase the volume of water available in the hydraulic circuit.

Adding a buffer tank helps provide a thermal reserve within the installation and allows hydraulic decoupling, depending on the scheme used, between energy production and distribution circuits.

Its 50-liter capacity is especially suitable when a relatively limited water volume needs to be added without resorting to a large tank.

Suitable for heating and cooling

This tank is designed for the storage, heating, or cooling of primary circuit water. It can therefore be used in installations intended only for heating as well as in reversible systems that provide cooling.

Mecalia specifies its use with different thermal generation systems:

• Heat pumps and aerothermal systems.
• Boilers.
• Solar energy systems.
• Water chillers.
• Heating and HVAC hydraulic installations.

Working pressure of 6 bar

The stainless steel DPI/DIM range is designed for a working pressure of 6 bar, allowing integration into different types of closed heating and HVAC circuits as long as the installation operating parameters remain within the limits established by the manufacturer.

Mecalia also indicates that the corresponding safety valves must always be installed on these tanks to properly protect the circuit.

Prepared for cold and hot water

Mecalia's technical documentation specifies an operating range of approximately -10 to 90 °C for this tank family, allowing use in both heating systems and hydraulic cooling installations.

This versatility is especially useful in installations with reversible heat pumps, capable of generating hot water in winter and cold water during the summer months.

Polyurethane thermal insulation

The tank includes thermal insulation with injected rigid polyurethane foam, designed to reduce heat exchange between the stored water and the surrounding environment.

Mecalia specifies an approximate thermal conductivity of λ = 0.022 W/m·°C and a density of 45 to 50 kg/m³ for this range. The insulating foam used is HCFC-free.

Insulation is especially important in a buffer tank, as it helps maintain water temperature both when the circuit is operating in heating mode and when it is running in cooling mode.

Threaded connections for hydraulic installation

Mecalia stainless steel buffer tanks with capacities of up to 500 liters incorporate four female threaded connections for the corresponding hydraulic connections.

This layout facilitates integration of the tank into different installation schemes, allowing it to be connected to the heat generator and distribution circuits according to the planned hydraulic design.

Not suitable for direct DHW storage

The Mecalia DPI/DIM 50 is intended exclusively for technical water in a closed primary circuit. It should not be confused with a storage tank or indirect water heater intended to store domestic hot water for consumption.

The manufacturer expressly states that the buffer tanks in this range are not suitable for DHW. Their function is to store water for heating, cooling, or HVAC circuits.

Applications of the Mecalia DPI/DIM 50 tank

• Aerothermal installations.
• Systems with a heat pump.
• Heating hydraulic circuits.
• Cooling and HVAC installations.
• Systems with water chillers.
• Thermal installations with a boiler.
• Systems powered by solar energy.
• Installations that require increasing the primary circuit water volume.

Technical specifications of the Mecalia 02141

• Brand: Mecalia.
• Reference: 02141.
• Model: DPI/DIM 50.
• Type: buffer tank.
• Installation: vertical wall-mounted.
• Nominal capacity: 50 liters.
• Material: AISI 304 stainless steel.
• Application: cold or hot primary circuit water.
• Operation: closed circuit.
• Suitable for DHW: no.
• Working pressure: 6 bar.
• Maximum working temperature: 90 °C.
• Range indicated in the range technical sheet: -10 to 90 °C.
• Diameter: 450 mm.
• Height: 700 mm.
• Hydraulic connections: four female threaded connections.
• Insulation: injected rigid polyurethane foam.
• Thermal conductivity of insulation: λ = 0.022 W/m·°C.
• Insulation density: 45-50 kg/m³.
• HCFC-free insulation: yes.
• Compatible with heat pump: yes.
• Compatible with boiler: yes.
• Compatible with solar energy: yes.
• Suitable for cooling circuits: yes.

Compact wall-mounted format for technical rooms

With dimensions of Ø 450 x 700 mm, the Mecalia DPI/DIM 50 combines a 50-liter capacity with a particularly compact format. Installed on the wall, it makes it possible to make the most of available space without occupying useful floor area.

This configuration is especially interesting in domestic aerothermal installations, renovations, and technical rooms where available space influences the choice of hydraulic components.

Mecalia buffer tank for aerothermal systems and HVAC

The Mecalia DPI/DIM 50-liter wall-mounted buffer tank provides a compact solution for increasing the water volume of closed heating and cooling circuits.

Its construction in AISI 304 stainless steel, 6 bar working pressure, polyurethane thermal insulation, and compatibility with heat pump, solar energy, and boiler systems allow it to be integrated into a wide variety of thermal installations.

Thanks to its wall-mounted installation and 50-liter capacity, it offers a particularly practical alternative for aerothermal and HVAC installations where a durable buffer tank is needed without taking up floor space.