Expansion Vessel Kaps C413501030 30 L Open Horizontal for Heating Systems

Open horizontal expansion vessel Kaps C413501030 30 L is designed for central heating and boiler systems where an open, gravity-vented tank is required. With a 30‑liter capacity, this vessel accommodates thermal expansion of water in closed-loop heating circuits that are configured as open installations, helping to maintain stable operating pressure and prevent overflow or undue strain on system components. The horizontal, open design allows installation on a wall or floor and connects to the heating circuit at a convenient orientation for system layout and maintenance.

Advantages

The open horizontal construction simplifies venting and makes the unit compatible with gravity-vented heating systems. Its 30‑liter volume provides sufficient buffer capacity for many residential and light-commercial systems, reducing pressure fluctuations during heating cycles. The vessel's orientation and mounting options offer flexibility for integration into boiler rooms or plant rooms where space and piping geometry dictate non-vertical installation.

Suitable for

• Residential central heating systems with open expansion requirements
• Small commercial or light-industrial boiler circuits using gravity venting
• Installations requiring wall- or floor-mounted horizontal vessels
• Heating systems where accessible venting and maintenance are important

Key specifications

• Capacity: 30 liters
• Design: open expansion vessel, horizontal configuration
• Application: central heating and boiler systems with gravity venting
• Mounting: suitable for wall or floor installation in heating plant rooms
• Function: accommodates thermal expansion of heating water and provides pressure compensation

How to use

Install the expansion vessel in accordance with local regulations and the heating system layout, ensuring the open tank is positioned to allow gravity venting and safe discharge. Connect the vessel to the heating circuit at the designated feed or return point using appropriate piping and fittings; secure the unit on a stable surface or wall bracket to maintain horizontal orientation. Regularly inspect the vessel and associated piping for signs of leakage, corrosion, or blockages in venting lines, and perform maintenance as part of scheduled heating system checks.

Usage recommendations

Ensure the installation follows applicable safety and building codes for open expansion vessels, including providing an appropriate overflow or drain path and easy access for inspection. Use the vessel in systems designed for open venting; do not use this open horizontal vessel in sealed or pressurized closed systems without appropriate modifications and approvals.