Expansion Vessel for Heating Systems Kaps 10 L Open Horizontal

Open horizontal expansion vessel Kaps 10 L is designed for heating (central heating/CO) systems to accommodate thermal expansion in closed-loop circuits. With a 10-litre capacity and horizontal orientation, this open-type tank helps maintain pressure balance, reduce stress on pipes and components, and provide a compact solution for residential and small commercial installations where space constraints or plumbing layout favour a horizontal vessel.

Advantages

The horizontal open design allows straightforward venting and connection in low-height installations while providing reliable accommodation of thermal expansion in heating circuits. The compact 10 L volume is suitable for smaller systems and helps limit heat losses compared with larger tanks. Constructed for use in central heating systems, the vessel contributes to maintaining hydraulic stability and protecting pumps, valves and radiators from excess pressure variations.

Suitable for

• Residential central heating systems with limited space
• Small commercial heating circuits
• Retrofit installations that require a horizontal tank configuration
• Systems where open-type expansion vessels are specified for venting and maintenance access

Key specifications

• Type: open expansion vessel, horizontal orientation
• Nominal volume: 10 litres
• Intended application: heating/central heating (CO) systems
• Mounting orientation: horizontal, suitable for low-height or compact installations
• Material considerations: corrosion-resistant construction suitable for open-loop exposure typical in heating systems

How to use

Install the vessel in accordance with local regulations and the system designer's instructions, ensuring correct horizontal positioning and secure mounting. Connect the vessel to the heating circuit at the designated expansion point, provide appropriate venting and overflow arrangements, and ensure all connections are leak-tight. Commission the system after installation by filling, venting air from the circuit, and checking for correct hydraulic behaviour and stable pressure during heat-up and cool-down cycles.

Usage recommendations

Locate the vessel where regular inspection and maintenance access is available; ensure proper venting and overflow piping to a safe drain. Use this open-type horizontal vessel only in systems designed for open expansion tanks and follow local building and plumbing codes for installation and safety.