Manifold - fitted with shut-off valves - 1 "xEK; 4-way; brass IVAR.CS 553

Product detailed description

This 4-way manifold is commonly used in floor heating systems to manage the return water flow in ON/OFF control configurations. It is suitable for installation in residential and commercial buildings where zoning and individual circuit control are required. The brass body provides durability and resistance to corrosion, making it ideal for use in closed heating systems with glycol or water as the heat transfer medium. The manifold is typically installed in mechanical rooms or technical areas where access for maintenance and adjustments is feasible.

When integrating this manifold into a system, the installer must ensure that the primary and secondary circuits are correctly sized to avoid pressure imbalances. The 50 mm spacing between outlets allows for standard pipe routing and connection to individual heating loops. The shut-off valves are manually operated but can be upgraded to electrothermal actuators for automated control. The system must be flushed before commissioning to remove any particulate matter that could affect valve operation or system efficiency.

Technical parameters

Material	Brass CW617N
Operating temperature	+120 °C
Nominal pressure	PN 10
Outlet spacing	50 mm
EAN	8595145905263
Weight	1.424 kg
Code	501672
Brand	IVAR

The operating temperature of +120°C and PN 10 pressure rating indicate that this manifold is suitable for standard heating systems with moderate pressure and temperature conditions. The CW617N brass material is selected for its mechanical strength and resistance to thermal expansion. The 50 mm spacing between outlets is a key factor in determining the layout of the distribution manifold and the routing of connecting pipes.

Installation and connection

The manifold is connected via 1 inch female threads on the inlet side and 3/4 inch EK (external) threads on the four outlets. The installer must verify that the inlet and outlet connections align with the system’s piping layout and that the manifold is mounted in a stable, accessible location. A common mistake is incorrect orientation of the shut-off valves, which can lead to improper flow control. The system must be flushed before commissioning to remove debris that could damage the valves or reduce efficiency. It is also important to ensure that the manifold is not installed in a location where freezing could occur.

Compatibility and accessories

This manifold is compatible with standard floor heating systems and can be integrated with electrothermal actuators such as IVAR.TE 3040, IVAR.TE 4040, IVAR.TE 3041, and IVAR.TE 4041 for automated control. The manual shut-off valves can be replaced with these actuators to enable remote or temperature-based regulation. Additional components such as flow meters, balancing valves, or insulation may be required depending on the system design. The system must also be treated with a preparation such as GEL.LONG LIFE 100 to protect against corrosion and scaling.

Technical background for designers

The manifold operates by distributing return water from multiple floor heating circuits into a single return line. The brass body ensures minimal thermal conductivity and structural stability under operating conditions. The CW617N material has a high tensile strength and is suitable for temperatures up to 120°C. The integration of shut-off valves allows for individual circuit isolation, which is essential for maintenance and balancing. The efficiency of the system depends on correct sizing of the manifold and the associated piping, as well as the quality of the system flush and chemical treatment.

Service and operation

Regular inspection of the shut-off valves is recommended to ensure smooth operation and to detect any signs of wear or leakage. The system must be flushed before each heating season to remove any particulate matter that could affect performance. No specific service intervals are provided, but the system should be checked for blockages or pressure imbalances if performance issues arise. The use of a chemical treatment such as GEL.LONG LIFE 100 is recommended to extend the service life of the manifold and associated components.

Frequently asked questions

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

Is this manifold suitable for use with glycol-based heat transfer media?
Yes, the CW617N brass material is compatible with glycol-based media and can operate at temperatures up to 120°C.

What is the recommended procedure before commissioning the system?
The system must be flushed according to the manufacturer’s instructions to remove any debris that could affect valve operation or system efficiency.

Can this manifold be used in a mixed system with floor heating and radiators?
Yes, but it is important to ensure that the system is properly balanced and that the manifold is installed in a location that allows for individual circuit control.