Expansion Tank Cimm ERE CE 24 L

Product detailed description

Expansion tanks are essential components in closed heating systems, where they accommodate thermal expansion of the water as it heats. This prevents pressure build-up in the system, ensuring safe and efficient operation. The Cimm ERE CE 24 L is suited for use in residential, commercial and industrial buildings with central heating systems. It is commonly installed in boiler rooms, mechanical rooms or behind utility walls. The tank is typically part of a larger system including circulators, safety valves and pressure-reducing devices. Proper installation ensures the tank can respond to temperature fluctuations and maintain system stability over time.

When integrating an expansion tank, the installer must consider the system’s total volume, the type of heat source and the anticipated temperature range. The tank must be sized correctly to handle the maximum expected expansion. Incorrect sizing can lead to frequent pressure fluctuations or insufficient compensation. The tank should be placed close to the boiler or heat source, preferably in a location that allows easy access for inspection and maintenance.

Technical parameters

Height	420 mm
Article number	820024
Name/volume	ERE CE 24 L
Diameter	325 mm
Connection thread	M 3/4 inch G
Operating pressure	1.5 bar
Maximum overpressure	4.0 bar
Operating temperature	-10+100 °C
Color	White
EAN	8033003527474
Code	832440
Brand	Cimm

The operating pressure of 1.5 bar indicates the tank’s ability to function under normal system conditions, while the maximum overpressure of 4.0 bar defines the upper limit before potential damage occurs. The working temperature range of -10 to +100°C ensures compatibility with most heating applications. The internal diaphragm is designed to resist thermal cycling and maintain airtight separation between the gas and water chambers. The M 3/4 inch G inlet is standard for many European heating systems, simplifying integration with existing piping.

Installation and connection

The Cimm ERE CE 24 L should be installed using a dedicated pipe section with a M 3/4 inch G threaded connection. The tank must be mounted vertically, with the inlet at the bottom to allow proper flow dynamics. Before connecting, ensure the system is depressurized and the tank is pre-charged with air or inert gas to the recommended pressure level. Verify the tank’s orientation and secure it with mounting brackets to prevent movement during operation. Common installation errors include incorrect orientation, failure to pre-charge the tank, or using undersized piping, which can restrict flow and reduce efficiency. Always check for leaks after installation and confirm the tank is correctly integrated into the system loop.

Compatibility and accessories

The Cimm ERE CE 24 L is compatible with standard closed-loop heating systems equipped with a pressure-reducing valve and safety relief valve. Additional components such as a pressure-reducing valve or air vent may be required depending on the system configuration. While no specific alternative products are listed, the tank can be used in conjunction with other Cimm or Quadroflex components for a fully integrated solution.

Technical background for designers

The Cimm ERE CE 24 L operates on the principle of a flexible diaphragm separating the air chamber from the water chamber. As the water heats and expands, the diaphragm compresses the air, absorbing the excess volume. This mechanism prevents excessive pressure buildup and maintains system equilibrium. The tank is constructed from durable materials suitable for long-term exposure to thermal stress. The white exterior provides corrosion resistance and is suitable for indoor environments. The tank’s performance is influenced by the initial pre-charge pressure, system volume and temperature range. Designers should account for these variables when selecting the appropriate tank size and configuration for the system.

Service and operation

Regular maintenance includes checking the pre-charge pressure and inspecting the tank for signs of wear or damage. If the tank shows signs of overexpansion or loss of pressure, it may require recharging or replacement. No specific service intervals are provided in the product data, but periodic checks are recommended to ensure continued functionality. During operation, the tank should remain free from obstructions and positioned in a location that allows for easy access. Any unusual noises or pressure fluctuations should be investigated promptly to identify potential issues.

Frequently asked questions

Can the Cimm ERE CE 24 L be used in solar heating systems?
Yes, the tank is suitable for use in solar heating systems provided the system operates within the specified temperature and pressure limits.

Is the Cimm ERE CE 24 L compatible with glycol-based systems?
It is compatible with glycol-based systems as long as the fluid remains within the operating temperature range and does not degrade the internal diaphragm.

How is the pre-charge pressure set on the Cimm ERE CE 24 L?
The pre-charge pressure should be adjusted to match the system’s cold pressure level using a pressure gauge and a suitable charging tool.

Can the Cimm ERE CE 24 L be installed horizontally?
No, the tank must be installed vertically with the inlet at the bottom to ensure correct operation and flow dynamics.

Documents for download

• Dokument na stiahnutie (PDF)
• Dokument na stiahnutie (PDF)
• Dokument na stiahnutie (PDF)