Kaps open horizontal expansion vessel 20 L with handles for central heating

Kaps open horizontal expansion vessel 20 L with handles for central heating is a horizontal cylindrical tank designed to accommodate thermal expansion in closed central heating systems. With a 20-litre capacity and integrated handles, the vessel is intended to reduce pressure fluctuations, protect pumps, valves and piping, and provide a compact solution for residential and light commercial heating installations where a horizontal layout is required.

Advantages

The horizontal design with built-in handles simplifies handling and installation in tight spaces and supports stable positioning on brackets or shelves. The open construction provides straightforward connection to the heating circuit and allows visual inspection of water level and venting. Corrosion-resistant materials and robust welds ensure reliable operation under typical heating conditions, while the 20 L capacity offers effective compensation for daily thermal expansion in small to medium-sized systems.

Suitable for

• Residential central heating systems
• Light commercial heating installations
• Boiler rooms with limited vertical space
• Retrofits and replacement of existing horizontal expansion vessels

Key specifications

• Capacity: 20 litres
• Orientation: horizontal cylindrical tank
• Mounting: designed for bracket or shelf installation with integrated handles for transport
• Connection: open expansion vessel compatible with standard central heating circuit piping and fittings
• Material: corrosion-resistant metal construction suitable for heating water
• Use environment: for closed central heating systems in residential and light commercial buildings

How to use

Install the vessel in a horizontal position on appropriate supports or mounting brackets, using the integrated handles to position the tank safely. Connect the vessel to the heating circuit at the designated point with suitable piping and valves, ensuring proper venting and a stable water level. Commission the system according to the heating equipment manufacturer’s instructions, checking for leaks and confirming that the vessel compensates for expansion during heat-up cycles. Periodically inspect the tank and connections for signs of corrosion or leaks and perform maintenance as part of routine heating system checks.

Usage recommendations

Place the vessel where it is accessible for inspection and maintenance; avoid direct contact with continuous condensate or aggressive chemicals. Use compatible fittings and follow local regulations for heating installations. For systems with higher expansion requirements or different layout constraints, verify capacity and orientation suitability before installation.