Expansion Vessel Cimm SOLAR 18 L

Product detailed description

Expansion vessels are essential components in closed-loop systems such as solar thermal installations, where thermal expansion of the working fluid must be accommodated. In residential and commercial solar systems, these vessels help maintain stable pressure and prevent damage to the system from overpressure. Installers working on such systems must ensure that the expansion vessel is correctly sized and installed to handle the thermal expansion of the fluid, especially during peak solar heating periods. The Cimm SOLAR 18 L is designed specifically for these applications, offering a compact and reliable solution for solar thermal systems.

When integrating an expansion vessel into a solar system, the installer must consider the system's volume, the type of working fluid, and the expected temperature range. The vessel must be positioned in a location that allows for easy access for maintenance and inspection. It should also be installed in a way that minimises thermal losses and ensures that the system remains balanced. The Cimm SOLAR 18 L is suitable for use in both new installations and system upgrades, providing a durable and efficient solution for managing thermal expansion in solar thermal systems.

Technical parameters

Height	380 mm
Item number	400018
Name/capacity	SOLAR 18 L
Diameter	260 mm
Connection thread	M 3/4 inch G
Operating pressure	2.5 bar
Maximum overpressure	10.0 bar
Operating temperature	-10+100 °C
Colour	Red
EAN	8033003530146
Code	400018
Brand	Cimm

The technical parameters of the Cimm SOLAR 18 L are crucial for determining its suitability for a specific solar thermal system. The operating pressure of 2.5 bar indicates the pressure at which the vessel is designed to function under normal conditions. The maximum overpressure of 10 bar is the upper limit beyond which the vessel should not be operated, ensuring safety and longevity. The operating temperature range of -10 to +100°C allows the vessel to function in a wide range of environmental conditions, from cold climates to high-temperature solar collectors. These parameters help in selecting the correct vessel size and type for the system, ensuring that it can handle the expected thermal expansion without failure.

Installation and connection

The Cimm SOLAR 18 L is equipped with an M 3/4 inch G connection, which is a standard thread type used in many plumbing and heating applications. When installing the vessel, the installer should ensure that the connection is clean and free from debris before tightening the fitting. The vessel should be mounted in a stable and accessible location, ideally near the pump or heat exchanger in the system. It is important to verify that the vessel is correctly positioned and that all connections are secure to prevent leaks. Common installation mistakes include improper tightening of the connection, which can lead to leaks, and incorrect positioning, which can affect the vessel's ability to function properly.

Before commissioning the system, the installer should check the vessel's pressure and ensure that it is within the specified operating range. This can be done using a pressure gauge connected to the vessel. If the pressure is too low, it may indicate a leak or an issue with the system's balance. The installer should also inspect the vessel for any signs of damage or wear that could affect its performance. Regular checks during the installation process can help identify and resolve potential issues before they become more serious.

Compatibility and accessories

The Cimm SOLAR 18 L is designed for use in solar thermal systems and is compatible with a wide range of system configurations. It can be integrated with various types of solar collectors, heat exchangers, and control systems. When installing the vessel, it is important to ensure that it is compatible with the system's piping and fittings. The M 3/4 inch G connection allows for easy integration with standard plumbing components. No additional accessories are required for the vessel to function, but installers may need to use standard tools and fittings to complete the installation. The vessel is not listed as having related or alternative products, so it should be selected based on the specific requirements of the system.

Technical background for designers

The Cimm SOLAR 18 L operates on the principle of accommodating thermal expansion in a closed-loop system. As the working fluid in the solar system heats up, it expands, increasing the pressure within the system. The expansion vessel contains a flexible diaphragm that separates the air chamber from the fluid chamber, allowing the fluid to expand into the vessel without causing a pressure increase in the system. The vessel is constructed from durable materials that can withstand the operating pressures and temperatures specified in the technical parameters. The integration of the vessel into the system is critical for maintaining stable pressure and preventing damage to other components. The service life and efficiency of the vessel depend on factors such as the quality of the installation, the operating conditions, and the maintenance performed over time.

Designers should consider the system's thermal expansion requirements when selecting the appropriate vessel size. The 18 L capacity of the Cimm SOLAR 18 L makes it suitable for systems with moderate thermal expansion needs. The operating temperature range of -10 to +100°C ensures that the vessel can function in a variety of climates and system conditions. The materials used in the vessel's construction are chosen for their durability and resistance to thermal cycling, which is a common issue in solar thermal systems. Proper integration of the vessel into the system can help optimise the overall performance and efficiency of the solar installation.

Service and operation

The Cimm SOLAR 18 L requires minimal maintenance to ensure continued performance. The vessel should be inspected periodically for signs of wear, damage, or leaks. The pressure within the vessel should be checked regularly to ensure that it remains within the specified operating range. If the pressure is found to be outside the acceptable range, it may indicate a problem with the system's balance or a leak in the vessel. The installer should also check the condition of the connection and ensure that it remains secure. No specific service intervals are provided in the technical data, so maintenance should be performed as needed based on the system's performance and the installer's experience.

During operation, the vessel should be monitored for any changes in pressure or performance that could indicate an issue. If the vessel is found to be underperforming or showing signs of wear, it should be replaced to prevent potential system failures. The vessel's durability and reliability make it a long-lasting component in solar thermal systems, but regular checks and maintenance are essential for ensuring its continued function. The installer should also ensure that the vessel is not exposed to extreme conditions that could affect its performance or lifespan.

Frequently asked questions

Can the Cimm SOLAR 18 L be connected to a standard solar thermal system?
Yes, the Cimm SOLAR 18 L is designed for use in standard solar thermal systems. It is compatible with a wide range of system configurations and can be integrated with various types of solar collectors and heat exchangers.

What is the maximum operating pressure of the Cimm SOLAR 18 L?
The maximum operating pressure is 10 bar. The vessel should not be operated beyond this pressure to ensure safety and longevity.

What is the operating temperature range of the Cimm SOLAR 18 L?
The operating temperature range is -10 to +100°C. This allows the vessel to function in a wide range of environmental conditions, from cold climates to high-temperature solar collectors.

What type of connection does the Cimm SOLAR 18 L use?
The vessel uses an M 3/4 inch G connection, which is a standard thread type used in many plumbing and heating applications. This allows for easy integration with standard plumbing components.

Documents for download

• Dokument na stiahnutie (PDF)
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