IVAR.CI 553 - manifold with regulating unions

The IVAR.CI 553 category includes brass distributors with integrated regulating and shut-off screws, designed for use in floor heating systems. These units are suitable for balancing and controlling the flow of supply water to individual heating circuits. They feature side inlets in 1" F or 5/4" F and 3/4" EK threaded outlets, with an outlet spacing of 50 mm. Available in 2- to 12-way configurations, they are constructed from CW617N brass, offering durability and resistance to corrosion.

These distributors are ideal for hydronic systems where precise flow control is required, especially in mixed systems combining floor heating with radiators. The PN 10 pressure rating and operating temperature up to +120°C make them suitable for standard heating applications.

How to choose

• Select the correct number of ports (2- to 12-way) based on the number of heating circuits in the system.
• Ensure the inlet size (1" F or 5/4" F) matches the pipe size of the supply line.
• Verify that the outlet connections (3/4" EK) are compatible with the branch pipes and fittings in the system.
• Confirm the material (CW617N brass) is suitable for the system’s chemical and thermal environment.
• Check compatibility with other system components, such as thermostatic valves and circulator pumps.

Frequently asked questions

What is the maximum operating temperature of the IVAR.CI 553?
The maximum operating temperature is +120°C.

Can the IVAR.CI 553 be used in mixed heating systems?
Yes, it is suitable for systems combining floor heating with radiators, provided the system is properly flushed and maintained.

What is the recommended maintenance procedure for these distributors?
Before commissioning the heating system, especially in mixed systems, it is recommended to flush the entire system according to the manufacturer’s instructions and treat it with a preparation such as GEL.LONG LIFE 100.