Pressure expansion vessel - water supply systems - 60l; 10bar; 1"; vertical with base IVAR.AFV 60 - AQUACOLD

Product detailed description

Pressure expansion vessels are essential components in water supply systems where thermal expansion of water must be accommodated. These vessels are commonly used in residential, commercial and industrial buildings to prevent pressure surges and damage to pipework and fittings. Installers working with domestic hot and cold water systems, as well as in larger-scale water distribution systems, will find these vessels necessary for system stability and longevity. The vertical orientation with a base makes this model suitable for installations where space is limited or where a compact footprint is required.

When integrating into a system, the vessel is typically installed downstream of the water heater or boiler, connected via a 1 inch pipe. It is important to ensure that the vessel is installed in a location that is easily accessible for inspection and maintenance. The vessel’s operating temperature range allows it to function effectively in both cold and warm environments, making it suitable for a wide range of applications.

Technical parameters

Code	A032L35
Brand	IVAR

The 60l capacity and 10bar pressure rating are critical for determining the vessel’s suitability for a given system. The 1 inch connection size ensures compatibility with standard pipe sizes used in water supply systems. The operating temperature range from -10°C to +99°C, with a recommended maximum of +80°C, means the vessel can be used in both cold and heated water systems. These parameters are essential for correct sizing and system design.

Installation and connection

To install the pressure expansion vessel, the installer should first ensure that the system is depressurised and that all connections are clean and free of debris. The vessel should be connected using a 1 inch pipe, typically via a threaded connection. It is important to verify that the vessel is mounted vertically with the base in contact with a stable surface to prevent movement or vibration. Common installation mistakes include incorrect orientation, failure to secure the vessel properly, or neglecting to check the pre-charge pressure before commissioning. Always refer to the manufacturer’s guidelines for specific installation instructions.

Compatibility and accessories

This expansion vessel is compatible with standard water supply systems and can be integrated with pressure-reducing valves, pressure switches and other system components. For alternative mounting options, the IVAR.AC model is suitable for hanging installations, while the IVAR.AFH model is designed for horizontal mounting with feet. When ordering, ensure that all necessary fittings and connections are included to match the system layout. Additional accessories such as pressure gauges or isolation valves may also be required depending on the system design.

Technical background for designers

The operating principle of the vessel relies on a flexible EPDM membrane that separates the air chamber from the water chamber. As water expands due to heating, the membrane compresses the air, allowing the vessel to absorb the excess volume without increasing system pressure. The EPDM material is resistant to a wide range of temperatures and is suitable for potable water applications. The vessel is CE marked in accordance with EU pressure equipment directive 97/23/ES, ensuring compliance with safety and quality standards. The vessel’s design allows for integration into both new and existing systems, with the vertical orientation optimising space usage in confined areas.

Service and operation

Regular inspection of the vessel is recommended to ensure that the membrane remains intact and that the pre-charge pressure is maintained. No specific service intervals are provided in the brief, but installers should monitor the system for signs of leakage, pressure fluctuations or unusual noise. If the vessel is suspected of being faulty, it should be isolated and replaced to prevent system damage. The vessel is designed for long-term operation with minimal maintenance, provided that it is installed correctly and used within its specified parameters.

Frequently asked questions

Can the vessel be used in a system with a temperature above +80°C?
It is not recommended to use the vessel in systems where the operating temperature exceeds +80°C, as this may affect the integrity of the EPDM membrane and reduce the service life of the vessel.

Is the EPDM membrane replaceable?
Yes, the membrane is designed to be replaceable and is supplied in the form of a vacuum-sealed unit, allowing for easy maintenance and replacement without the need to replace the entire vessel.

Can this vessel be mounted horizontally?
No, this model is specifically designed for vertical mounting with a base. For horizontal mounting, the IVAR.AFH model should be selected.

What is the maximum working pressure of the vessel?
The vessel is rated for a maximum working pressure of 10bar, making it suitable for use in high-pressure water supply systems.