Expansion Vessel (Open Horizontal) Kaps 50 L for Central Heating - Model C413501050

Open horizontal expansion vessel Kaps 50 L (model C413501050) is designed for central heating systems requiring an open expansion solution. This vessel accepts changes in water volume caused by temperature fluctuations in non-pressurized heating circuits and is intended for horizontal mounting in boiler rooms. The unit is suitable for domestic and small commercial installations where a gravity or open-vent arrangement is used and where reliable allowance for thermal expansion is needed.

Advantages

The Kaps open horizontal expansion vessel provides a simple, passive means to accommodate thermal expansion without the need for pressurized components. Its 50-liter capacity offers ample compensation for typical small to medium heating loops. Horizontal mounting reduces installation height requirements and facilitates placement in boiler rooms with limited vertical space. The vessel's open-type design enables free venting to an expansion tank or attic cistern in traditional open systems.

Suitable for

• Domestic central heating systems with open-vent configuration
• Small commercial boiler rooms where non-pressurized expansion is required
• Retrofit projects replacing damaged or undersized open expansion tanks
• Installations with limited vertical space that need horizontal mounting

Key specifications

• Nominal volume: 50 liters capacity for thermal expansion compensation
• Mounting orientation: horizontal installation
• Application type: open/vented expansion vessel for central heating circuits
• Material considerations: corrosion-resistant construction suitable for potable or heating water circuits when installed in open systems
• Connection type: fittings compatible with standard open-vent plumbing arrangements

How to use

Install the expansion vessel horizontally in the boiler room at the designated location in the expansion circuit, ensuring secure support and correct alignment of inlet and outlet connections. Connect the vessel to the system's open-vent piping so it can communicate with the expansion tank or header. Provide a clear vent path to the atmosphere or to the building's expansion cistern as required by the system design. Regularly inspect the vessel and connections for signs of corrosion, leaks, or blockages and ensure the open vent remains unobstructed.

Usage recommendations

Verify compatibility with the heating system design prior to installation: ensure the 50 L capacity meets expansion requirements, the horizontal orientation suits the available space, and the vessel is placed in a location that allows proper venting and maintenance access.