Assembly distributor IVAR.CS 553 DRS, 4-way

Product detailed description

The IVAR.CS 553 DRS 4-way assembly distributor is commonly used in multi-loop radiator heating systems in residential and commercial buildings. It provides a central point for distributing and collecting heated water in a balanced manner. Installers working on central heating systems will find this unit suitable for systems requiring individual circuit control and isolation. The unit is typically integrated into underfloor or wall-mounted heating systems where precise flow management is required.

Designed for use with standard pipe diameters and compatible with a range of control systems, this assembly ensures even heat distribution across multiple circuits. The inclusion of both control and shut-off valves allows for individual circuit adjustment and isolation during maintenance or system balancing. The unit is intended for use in systems operating at nominal pressure up to PN 10 and temperatures up to +120°C, making it suitable for conventional heating applications.

Technical parameters

Nominal pressure	PN 10
EAN	8595145903696
Weight	5.489 kg
Code	553772BS
Brand	IVAR

The nominal pressure rating of PN 10 indicates that the distributor is suitable for systems operating at pressures up to 10 bar. The maximum operating temperature of +120°C is typical for central heating systems using water as the heat transfer medium. These parameters are essential for determining compatibility with existing piping and system components such as pumps, radiators and control valves.

Installation and connection

The distributor is connected via 1 inch threaded connections with EK thread type. Installers should ensure that the inlet and outlet connections are aligned with the system layout and that all pipe joints are properly sealed. The unit should be mounted in a stable position to prevent vibration and stress on the connections. Common installation errors include incorrect orientation of the manifolds, improper sealing of threaded joints, and failure to align the control and shut-off valves with their respective circuits. It is important to verify that all valves are fully open during initial commissioning to allow for system balancing.

Compatibility and accessories

The IVAR.CS 553 DRS is compatible with standard heating system components such as thermostatic radiator valves, balancing valves and circulation pumps. Additional accessories such as mounting brackets and insulation may be required depending on the installation environment. The unit is designed to be used with standard 1 inch piping and fittings. Related products should be selected based on the specific system requirements and flow rates.

Technical background for designers

The distributor operates by dividing the incoming hot water into multiple circuits and collecting the return flow from each circuit. The distribution manifold is equipped with control valves to regulate flow to individual radiators, while the collection manifold has shut-off valves to isolate circuits during maintenance. The materials used are selected for their resistance to corrosion and thermal expansion. The integration of the distributor into the system depends on the overall flow rate, number of circuits and the required pressure drop. The service life and efficiency are influenced by the quality of installation, regular maintenance and correct system balancing.

Service and operation

Regular inspection of the valves and connections is recommended to ensure leak-free operation. Checkpoints include verifying the tightness of threaded joints, the correct operation of control and shut-off valves, and the absence of corrosion or scaling. No specific service intervals are provided in the technical data, but maintenance should be performed as part of routine system checks. Any signs of leakage or malfunction should be addressed immediately to prevent system downtime.

Frequently asked questions

Can the IVAR.CS 553 DRS be connected to a system with more than four circuits?
No, the unit is specifically designed for four circuits and cannot be expanded beyond this configuration.

Is it possible to replace individual valves on the distributor?
Yes, the control and shut-off valves can be replaced individually if damaged or worn.

Can the distributor be used in systems with glycol-based heat transfer fluid?
According to the manufacturer's technical data sheet, compatibility with glycol-based fluids should be verified separately.

What is the maximum allowable pressure drop across the distributor?
The pressure drop depends on the flow rate and system configuration. Refer to the manufacturer's technical data sheet for detailed information.