Manifold - fitted with regulating screws - 5/4 "xEK; 9-way; brass IVAR.CI 553

Product detailed description

This type of manifold is commonly used in residential and commercial buildings equipped with underfloor heating systems. It enables precise control of water flow to individual circuits, ensuring balanced heat distribution. Installers typically work with this component during the installation or renovation of radiant heating systems, where accurate flow regulation is essential for system efficiency.

In multi-circuit systems, the manifold serves as a central hub for distributing and regulating hot water. It connects to the primary heating circuit via larger inlet ports and distributes the flow through smaller outlet ports to individual heating loops. The presence of regulating and shut-off valves allows for independent adjustment and isolation of each circuit, which is crucial for troubleshooting and fine-tuning thermal performance.

Technical parameters

Installation and connection

The manifold is fitted with side inlets of 1” F and 5/4” F and 3/4” EK threaded outlets. During installation, it is important to ensure that all connections are clean and free from debris to avoid leaks or blockages. The spacing between the outlets is fixed at 50 mm, which must be considered when planning the layout of the heating circuits and routing the pipes.

A common mistake during installation is incorrect orientation of the manifold, which can lead to improper flow distribution. Installers should also verify that the regulating and shut-off valves are fully open before commissioning the system. Tightening of the fittings should be done carefully to avoid damaging the threads or the sealing surfaces.

Compatibility and accessories

This manifold is compatible with standard floor heating systems that use 3/4” EK threaded piping. To complete the system, additional components such as insulation, balancing valves, and pipe fittings may be required. While no alternative products are listed, installers should refer to the manufacturer’s guidelines for recommended combinations with other system components.

Technical background for designers

The manifold functions by dividing the incoming flow into multiple branches and allowing individual regulation of each branch. The use of CW617N brass provides good corrosion resistance and mechanical strength, making it suitable for long-term operation in heating systems. The design integrates the regulating and shut-off valves directly into the manifold body, simplifying the system layout and reducing the need for external control devices.

The service life and efficiency of the manifold depend on the quality of the installation, the cleanliness of the water in the system, and regular maintenance. The presence of impurities or high mineral content in the water can affect the longevity of the internal components and the sealing surfaces of the valves.

Service and operation

During operation, the manifold requires periodic inspection of the regulating and shut-off valves for signs of leakage or wear. The system should be drained and flushed if sediment accumulation is suspected. No specific service intervals are provided, so maintenance should be carried out based on the observed condition of the component and the overall system performance.

Frequently asked questions

Can the manifold be used in a system with higher than +120°C water temperature?
No, the maximum operating temperature is specified as +120°C. Exceeding this limit may cause material degradation or failure.

Is the manifold suitable for use in a closed-loop system?
Yes, the manifold is appropriate for use in closed-loop heating systems where water is the heat transfer medium.

Can the regulating valves be replaced individually?
Yes, the regulating and shut-off valves are integrated into the manifold body and can be serviced or replaced separately if required.

Are the inlets interchangeable for different pipe orientations?
Yes, the side inlets allow for flexible installation depending on the direction of the supply pipes.