Pressure expansion vessel, 35 l, 10 bar, 1"

Product detailed description

Pressure expansion vessels are essential components in potable water systems, particularly in closed-loop systems where thermal expansion must be accommodated. This model is commonly used in residential and commercial buildings where water heating systems require compensation for volume changes. Installers working on domestic hot water systems, heat pump circuits, or pressurised water storage systems will find this vessel suitable for integration into systems operating within a wide temperature range.

The vessel is designed to be mounted in a fixed position and is intended for use with potable water. It is not suitable for aggressive media or chemical solutions. The operating temperature range allows for use in both cold and hot water applications, making it adaptable to a variety of system configurations.

Technical parameters

Diameter	400 mm
EAN	8019742012112
Weight	6.15 kg
Code	A032L31
Brand	IVAR

The 35 l capacity is suitable for systems with moderate expansion requirements. The 10 bar working pressure ensures compatibility with most domestic and commercial water systems. The 1 inch connection is a standard size for many plumbing applications, allowing for straightforward integration into existing piping systems. The diameter of 400 mm and height of 400 mm must be considered when planning the installation space.Installation and connection The vessel is designed for wall mounting and should be installed in a location that allows for easy access for inspection and maintenance. The 1 inch connection requires a compatible pipe fitting with a standard thread type. It is important to ensure that the vessel is installed in a vertical orientation and that the pressure relief valve is accessible. Common installation mistakes include incorrect orientation, which can affect the performance of the internal diaphragm, and failure to secure the vessel properly, which can lead to vibration or movement over time. Before commissioning, the pressure within the vessel should be checked to ensure it matches the system pressure.Compatibility and accessories This pressure expansion vessel is compatible with potable water systems operating within the specified temperature range. It is intended for use with EPDM diaphragm membranes, which are suitable for water applications. No additional accessories are required for basic installation, but pressure relief valves and mounting brackets may be needed depending on the system configuration. Related products may include pressure regulators and temperature sensors, which should be selected based on the system requirements.Technical background for designers The vessel operates on the principle of separating the water from the air using a flexible EPDM diaphragm. As the water expands due to heating, the diaphragm compresses the air chamber, allowing the system to maintain a stable pressure. The EPDM material is resistant to water and provides a long service life when used within the recommended temperature range. The vessel is designed to be integrated into closed-loop systems and must be sized according to the system’s expansion requirements. The internal volume and pressure rating are key factors in determining the vessel’s suitability for a given application.Service and operation Regular inspection of the vessel is recommended to ensure that the internal diaphragm remains intact and that the pressure remains stable. No specific service intervals are provided in the technical data, but any signs of leakage or pressure loss should be investigated. The vessel should be checked for physical damage and proper mounting. If the diaphragm becomes damaged or the vessel is no longer functioning correctly, it should be replaced to avoid system instability.Frequently asked questions

Can this vessel be used in a domestic hot water system?
Yes, it is suitable for use in domestic hot water systems operating within the specified temperature range of -10°C to +99°C.

Is the EPDM diaphragm suitable for potable water?
Yes, the EPDM membrane is designed for use with potable water and is commonly used in such applications.

What is the maximum operating pressure for this vessel?
The vessel is rated for a maximum operating pressure of 10 bar, which is suitable for most domestic and commercial water systems.

Can the vessel be installed in a horizontal position?
No, it should be installed vertically as specified in the technical documentation to ensure proper operation of the internal diaphragm.