Automatic control and balancing valve for end devices - 3/4"; Kv 0,26 to 2,9 IVAR.CIM 788

Product detailed description

Automatic balancing valves are essential components in hydronic systems for maintaining consistent flow and pressure in heating and cooling applications. These valves are commonly installed in residential, commercial and industrial buildings where precise control of thermal distribution is required. Installers and system designers use these valves to ensure even heat distribution across multiple circuits or zones, particularly in systems with varying load conditions. The integration of automatic balancing valves helps reduce the need for manual adjustments and supports long-term system stability.

In installations involving radiators, fan coil units or underfloor heating, these valves are used to compensate for pressure fluctuations and maintain the set flow rate. The valve is typically mounted on the supply or return side of the end device, depending on the system design and flow direction. The installation should be carried out in accordance with the manufacturer’s guidelines to ensure proper function and system compatibility.

Technical parameters

Material	CW602N-M
Operating temperature	-10 °C
Nominal pressure	PN 25
Weight	0.388 kg
Code	788034
Brand	IVAR

The valve is constructed from CW602N-M material, a copper alloy known for its durability and resistance to corrosion, making it suitable for use in both heating and cooling systems. The operating temperature range of -10°C to +120°C allows for use in a wide range of environments, including those with seasonal temperature variations. The PN 25 rating indicates that the valve is designed to handle a nominal pressure of 25 bar, which is typical for many hydronic systems. These parameters are critical for determining the valve’s suitability for specific applications and for ensuring correct sizing and system integration.

Installation and connection

The valve is installed using a 3/4 inch connection, which is compatible with standard pipe fittings and threaded connections in heating and plumbing systems. Before installation, it is important to verify the direction of flow and ensure that the valve is mounted in the correct orientation. The installation should be carried out in a clean, dry environment to prevent contamination of the internal components. Common installation mistakes include incorrect orientation, failure to check the flow direction and improper tightening of the connection. To avoid these issues, the installer should refer to the manufacturer’s technical documentation and follow the recommended installation procedure.

Compatibility and accessories

This valve is designed to work in conjunction with the IVAR.CIM 311 electrothermal head for automatic closing control. The electrothermal head allows for remote or automatic operation of the valve, which is useful in systems requiring dynamic flow adjustments. When ordering, the electrothermal head must be specified separately. The valve is compatible with standard heating and cooling systems that operate within the specified temperature and pressure ranges. It is not compatible with systems using non-compatible control heads or those requiring higher pressure ratings than PN 25.

Technical background for designers

The valve operates by automatically adjusting the flow rate in response to changes in system pressure, ensuring that the set flow remains constant. The CW602N-M material provides good mechanical strength and resistance to thermal expansion, which is important for maintaining the integrity of the valve under varying operating conditions. The integration of the valve into the system requires careful consideration of the overall hydraulic balance and the interaction with other components such as pumps, sensors and control units. The service life and efficiency of the valve are influenced by the quality of the installation, the operating conditions and the maintenance schedule.

Service and operation

The valve requires minimal maintenance due to its robust design and automatic operation. However, periodic checks should be carried out to ensure that the internal components are functioning correctly and that there is no blockage or leakage. The electrothermal head should also be inspected for signs of wear or damage. No specific service intervals are provided in the technical data, but it is recommended to follow the manufacturer’s guidelines for routine maintenance. In the event of a malfunction, the valve should be isolated and inspected by a qualified technician.

Frequently asked questions

Can the valve be used in cooling systems?
Yes, the valve is suitable for use in both heating and cooling systems as it operates within the temperature range of -10°C to +120°C.

Is the valve compatible with other control heads?
No, the valve is specifically designed to work with the IVAR.CIM 311 electrothermal head for automatic closing control.

Can the valve be installed in any orientation?
No, the valve must be installed in the correct orientation as indicated by the manufacturer’s instructions to ensure proper function.

What is the maximum operating pressure of the valve?
The valve is rated for a nominal pressure of PN 25, which means it can handle a maximum operating pressure of 25 bar.