Manifold - fitted with shut-off valves - 5/4 "xEK; 6-way; brass IVAR.CS 553

Product detailed description

Manifolds with integrated shut-off valves are essential components in hydronic heating systems, particularly in floor heating applications where individual circuit isolation is required. Installers working in residential and commercial buildings often use these units to manage return flow from multiple heating zones. The system typically involves connecting the manifold to a central heating unit and distributing the return flow to individual circuits. This model is suitable for installations where precise flow control and circuit isolation are required, such as in mixed systems with both floor and radiator heating.

Correct selection and installation of manifolds is critical to system performance. The operating conditions and material properties must align with the system's design parameters to ensure long-term reliability and efficiency. This model is intended for use in systems with moderate flow rates and where manual shut-off is sufficient for maintenance and isolation purposes.

Technical parameters

Material	Brass CW617N
Operating temperature	+120 °C
Nominal pressure	PN 10
Code	400026
Brand	IVAR

The operating temperature limit of +120°C and nominal pressure rating of PN 10 define the conditions under which the manifold can be safely used. These values are essential for sizing the manifold to the system's hydraulic and thermal requirements. The CW617N brass material provides good corrosion resistance and mechanical strength, making it suitable for use in closed heating systems with glycol or water as the heat transfer medium.

Installation and connection

The manifold features a 1-inch female inlet and a 5/4-inch female inlet, with six 3/4-inch EK threaded outlets spaced 50 mm apart. The installation process involves aligning the inlet ports with the return flow piping and connecting the outlets to individual heating circuits. It is important to ensure that all connections are tightened to the manufacturer's torque specifications to prevent leaks. A common mistake is incorrect orientation of the manifold, which can lead to flow imbalances and uneven heating. Before commissioning, the system should be flushed according to the manufacturer's instructions to remove any debris that could affect performance.

Compatibility and accessories

This manifold is compatible with standard floor heating systems and can be integrated with heating circuits using 3/4-inch EK threaded connections. The manual shut-off valves can be replaced with electric actuators from the IVAR.TE series (TE 3040, TE 4040, TE 3041, TE 4041) for automated control. When ordering, ensure that all necessary fittings and valves are included to complete the installation. No alternative products are available for this model.

Technical background for designers

The manifold operates by distributing the return flow from the heating system to multiple circuits, with each circuit controlled by a shut-off valve. The CW617N brass material is selected for its durability and resistance to corrosion in closed heating systems. The PN 10 rating ensures that the manifold can handle typical system pressures without deformation or failure. The design allows for easy integration into existing systems, with the 50 mm spacing between outlets accommodating standard pipe layouts. The longevity of the manifold depends on the quality of the installation, the cleanliness of the system, and the regularity of maintenance checks.

Service and operation

To maintain system efficiency, it is recommended to flush the entire heating system before commissioning, especially when combining floor and radiator heating. The shut-off valves should be inspected periodically for signs of wear or leakage. If the system is not flushed properly, debris can accumulate and cause blockages or damage to the manifold. The manufacturer also recommends using the GEL.LONG LIFE 100 treatment to extend the service life of the system. No specific service intervals are provided, but regular visual inspections are advised.

Frequently asked questions

Can the shut-off valves be replaced with electric actuators?
Yes, the manual shut-off valves can be replaced with electric actuators from the IVAR.TE series (TE 3040, TE 4040, TE 3041, TE 4041) for automated control.

What is the maximum operating temperature for this manifold?
The maximum operating temperature is +120°C, as specified in the technical parameters.

What is the recommended system preparation before installation?
The system must be flushed thoroughly before commissioning to remove any debris that could affect performance. The GEL.LONG LIFE 100 treatment is also recommended.

What is the material of the manifold body?
The manifold body is made from CW617N brass, which provides good corrosion resistance and mechanical strength.