Manifold - fitted with regulating screws - 5/4 "xEK; 6-way; brass IVAR.CI 553

Product detailed description

This 6-way manifold is commonly used in underfloor heating systems in residential and commercial buildings. It allows for precise flow regulation and distribution of heated water to individual heating loops. The brass construction ensures durability and resistance to corrosion, making it suitable for long-term use in hydronic heating applications. Installers typically integrate this manifold into the primary circulation system to manage flow rates and pressure distribution effectively.

Correct installation and sizing are crucial for optimal system performance. The manifold is designed to handle nominal pressure up to PN 10 and can operate at temperatures up to 120°C. It is typically installed in mechanical rooms or utility areas where access for maintenance and adjustments is convenient. The inlet and outlet connections must be carefully aligned with the rest of the system to avoid flow imbalances and pressure drops.

Technical parameters

The operating temperature of +120°C and nominal pressure of PN 10 are essential for determining the suitability of this manifold for specific heating systems. These parameters ensure that the manifold can handle the thermal and hydraulic demands of underfloor heating circuits without deformation or failure. The material, brass CW617N, is selected for its strength and resistance to thermal expansion, making it ideal for long-term operation in heating systems.

Installation and connection

Installation begins with verifying the inlet and outlet connections. The manifold features 1“ F and 5/4“ F inlets and 3/4“ EK outlets, which must be connected to the corresponding piping using appropriate fittings. The 50 mm spacing between the outlets should be considered when planning the layout to ensure compatibility with the connected heating elements. Installers should ensure that all connections are tightened to the manufacturer’s torque specifications to prevent leaks. A common mistake is misaligning the outlet ports, which can lead to uneven flow distribution and reduced system efficiency.

Compatibility and accessories

This manifold is compatible with standard underfloor heating systems that use 3/4“ EK threaded connections. It is typically used in conjunction with thermostatic valves, circulation pumps, and expansion vessels to maintain stable system operation. Additional components such as pressure gauges and balancing valves may be required depending on the system design. No specific accessories are required for this model, but installers should ensure that all connected components are sized and rated for the same operating conditions.

Technical background for designers

The manifold operates by distributing heated water from a single supply line to multiple heating circuits. The regulating and shut-off screws allow for manual adjustment of flow rates in each circuit, ensuring even heat distribution. The design minimizes pressure loss across the manifold, making it suitable for use in both low- and medium-pressure systems. The spacing between the outlets and the thread types are chosen to accommodate standard underfloor heating tubing and fittings.

Service and operation

Periodic inspection of the regulating and shut-off screws is recommended to ensure they remain free from debris and operate smoothly. Any signs of leakage around the connections should be addressed immediately. The manifold does not require scheduled maintenance beyond visual inspections and functional checks. If flow imbalances occur, the regulating screws can be adjusted to restore balance. No specific service intervals are provided for this model, but regular monitoring is advised to maintain system performance.

Frequently asked questions

Can the manifold be used in systems with higher operating temperatures?
No, the maximum operating temperature is specified as +120°C. Exceeding this may cause material deformation or failure.

Is it possible to replace individual regulating screws?
Yes, the regulating and shut-off screws are designed for individual replacement without removing the entire manifold.

Can the manifold be used with non-ferrous metal piping?
Yes, the brass construction is compatible with copper and other non-ferrous metal piping systems.

Are the inlet and outlet connections interchangeable?
No, the inlets are 1“ F and 5/4“ F, while the outlets are 3/4“ EK. They are not interchangeable and must be connected to matching fittings.