Manifold - fitted with shut-off valves - 5/4 "xEK; 2-way; brass IVAR.CS 553

Product detailed description

Manifolds with integrated shut-off valves are essential components in hydronic systems, particularly in underfloor heating applications. They allow for individual zone control of return flows, ensuring even heat distribution and system efficiency. This model is commonly used in residential and commercial buildings where zoning and flow regulation are required. Installers typically encounter these units in systems combining underfloor heating with radiators, where precise flow management is critical for system performance.

When integrating this manifold into a system, it is important to consider the hydraulic balance and thermal expansion characteristics of the installation. The brass construction provides durability and resistance to corrosion, making it suitable for long-term use in closed heating circuits. The shut-off valves allow for manual or automated control, depending on the system requirements.

Technical parameters

Material	Brass CW617N
Operating temperature	+120 °C
Nominal pressure	PN 10
Code	400022
Brand	IVAR

The operating temperature of +120°C and PN 10 pressure rating are key factors in determining the suitability of this manifold for specific applications. These parameters ensure compatibility with standard heating circuits and allow for safe operation under typical thermal and hydraulic conditions. The material selection (brass CW617N) also influences the component’s resistance to thermal cycling and mechanical stress.

Installation and connection

The manifold is equipped with side inlets of 1 inch F and 5/4 inch F, and 3/4 inch EK outlets. The 50 mm spacing between outlets should be considered when planning the layout to ensure compatibility with standard pipe routing. During installation, it is important to verify the alignment of the inlets and outlets with the system piping and to ensure that all connections are properly sealed. A common mistake is neglecting to check the orientation of the shut-off valves, which must be aligned with the flow direction for optimal performance.

Compatibility and accessories

This manifold is compatible with standard heating systems that use 3/4 inch EK threaded connections. The shut-off valves can be replaced with electrothermal heads (IVAR.TE 3040, IVAR.TE 4040, IVAR.TE 3041, IVAR.TE 4041) for automated control. When ordering, ensure that the system includes all necessary fittings and valves to complete the installation. No related products are listed for this model.

Technical background for designers

The manifold operates by directing the return flow of the heating system through individual shut-off valves. The brass CW617N material offers high mechanical strength and corrosion resistance, making it suitable for long-term use in closed heating circuits. The design allows for integration into both manual and automated systems, depending on the control strategy. The service life and efficiency of the manifold are influenced by the quality of the system water and the frequency of thermal cycling. Proper system flushing and treatment are essential for maintaining performance.

Service and operation

The manufacturer recommends a thorough system flush before commissioning, especially when combining underfloor heating with radiators. The system should also be treated with a preparation such as GEL.LONG LIFE 100 to prevent contamination-related issues. While no specific service intervals are provided, regular inspection of the shut-off valves and connections is advised to ensure continued operation. Any signs of leakage or blockage should be addressed promptly to prevent system inefficiency.

Frequently asked questions

Can the shut-off valves be replaced with automated heads?
Yes, the manual shut-off valves can be replaced with electrothermal heads from the IVAR.TE series for automated control.

What is the maximum operating temperature of the manifold?
The manifold is rated for a maximum operating temperature of +120°C, suitable for standard heating applications.

What connection types are available on the manifold?
The manifold features side inlets of 1 inch F and 5/4 inch F, and 3/4 inch EK threaded outlets for connecting to the system piping.

Is the manifold suitable for use in mixed heating systems?
Yes, the manifold is suitable for use in systems that combine underfloor heating with radiators, provided the system is properly flushed and maintained.

Documents for download

• CSTL_IVAR.CS 553 (PDF)
• SKTL_IVAR.CS 553 sk (PDF)
• SKNAVOD_IVAR.CS 553 czver (PDF)
• CSNAVOD_IVAR.CS 553 (PDF)