Manifold - fitted with shut-off valves - 5/4 "xEK; 12-way; brass IVAR.CS 553

Product detailed description

Manifolds with integrated shut-off valves are essential components in hydronic heating systems, particularly in underfloor heating applications. These devices allow for individual flow control in each circuit, ensuring even heat distribution and system efficiency. Installers working in residential and commercial buildings often encounter these systems, where zoning and thermal regulation are required. The manifold connects to the main heating circuit and distributes water to multiple heating loops, with each loop controlled by a dedicated shut-off valve. Proper installation and system preparation are crucial to avoid blockages and ensure long-term performance.

When integrating such a manifold into a system, it is important to consider the overall layout of the heating network. The manifold is typically installed in accessible locations, such as mechanical rooms or utility areas, where maintenance and adjustments can be carried out without disruption. The system may include a combination of floor heating and radiators, requiring careful balancing and flushing to prevent sediment buildup and corrosion. The presence of shut-off valves allows for isolation of individual circuits during maintenance or system modifications.

Technical parameters

The operating temperature of +120°C indicates that the manifold is suitable for high-temperature heating systems, such as those using condensing boilers or solar thermal inputs. The PN 10 rating defines the maximum pressure the manifold can withstand under normal operating conditions, which is important for sizing the system and selecting compatible components. The material, brass CW617N, is known for its resistance to corrosion and mechanical stress, making it suitable for long-term use in closed heating systems.

Installation and connection

Installation of the manifold requires careful alignment with the main supply and return lines. The side inlets are 1" F and 5/4" F, while the outlets are 3/4" EK. The 50 mm spacing between outlets ensures compatibility with standard pipe layouts and allows for the use of standard fittings. Before connecting, installers should verify that all connections are clean and free of debris to prevent blockages. A common mistake is incorrect orientation of the shut-off valves, which can lead to improper sealing or flow restriction. It is also important to ensure that the manifold is mounted in a stable position to avoid stress on the connections.

Compatibility and accessories

This manifold is compatible with standard floor heating systems and can be integrated with various types of actuators and controllers. The shut-off valves can be replaced with electrothermal heads such as IVAR.TE 3040, IVAR.TE 4040, IVAR.TE 3041, and IVAR.TE 4041 for automated control. When planning the system, it is necessary to ensure that all components, including pipe fittings and insulation, are compatible with the manifold's dimensions and specifications. Additional accessories such as pressure gauges or balancing valves may be required depending on the system design.

Technical background for designers

The manifold operates by dividing the incoming flow into multiple circuits, each controlled by a shut-off valve. The brass CW617N material provides good thermal conductivity and mechanical strength, ensuring stable performance under varying load conditions. The integration of the manifold into the system depends on the overall flow rate and pressure drop across the network. The service life and efficiency of the manifold are influenced by the quality of the system water, the presence of corrosion inhibitors, and the regularity of system maintenance. Proper system design and material selection are key to achieving long-term reliability.

Service and operation

Regular maintenance is essential to ensure the manifold operates efficiently. The system should be flushed periodically to remove sediment and debris that can accumulate in the valves and piping. It is recommended to use a system treatment such as GEL.LONG LIFE 100 to prevent corrosion and scaling. During operation, the shut-off valves should be checked for leaks and proper sealing. If any issues arise, the valves can be replaced individually without dismantling the entire manifold. The system should be inspected before each heating season to ensure all components are functioning correctly.

Frequently asked questions

Can the shut-off valves be replaced with automated actuators?
Yes, the manual shut-off valves can be replaced with electrothermal heads such as IVAR.TE 3040, IVAR.TE 4040, IVAR.TE 3041, and IVAR.TE 4041 for automated control.

What is the maximum operating temperature of the manifold?
The manifold is rated for a maximum operating temperature of +120°C, making it suitable for high-temperature heating systems.

What connection sizes are available on the manifold?
The side inlets are 1" F and 5/4" F, while the outlets are 3/4" EK with a 50 mm spacing between them.

Is it necessary to flush the system before commissioning?
Yes, it is strongly recommended to flush the entire system before commissioning to remove any debris or contaminants that could affect performance.