Manifold - fitted with shut-off valves - 1 "xEK; 9-way; brass IVAR.CS 553

Product detailed description

This 9-way manifold is commonly used in underfloor heating systems in residential and commercial buildings. It allows for individual flow control of each circuit, enabling precise temperature management in different zones. The unit is typically installed in mechanical rooms or utility areas where access for maintenance and adjustments is required. It is especially suited for systems where a combination of floor heating and radiator circuits is used, ensuring balanced flow distribution and system efficiency.

During installation, the manifold connects to the main return line via a 1 inch female thread and branches into individual circuits using 3/4 inch EK threaded outlets. The 50 mm spacing between outlets ensures compatibility with standard manifold mounting brackets and insulation panels. The brass body provides corrosion resistance and long-term durability in hot water environments.

Technical parameters

Material	Brass CW617N
Operating temperature	+120 °C
Nominal pressure	PN 10
Outlet spacing	50 mm
EAN	8595145905362
Weight	3.053 kg
Code	501677
Brand	IVAR

The operating temperature of +120°C and PN 10 pressure rating make this manifold suitable for standard underfloor heating systems with glycol or water as the heat transfer medium. The 50 mm spacing between outlets is critical for proper alignment with insulation panels and collector boxes. The CW617N brass material ensures compatibility with common pipe materials and resists dezincification in closed systems.

Installation and connection

The manifold is installed using a 1 inch female inlet connection to the main return line. Each of the nine outlets uses a 3/4 inch EK thread for connecting to individual circuit pipes. The 50 mm spacing between outlets must be verified during mounting to ensure proper alignment with insulation and mounting hardware. A common mistake is incorrect orientation of the shut-off valves, which can lead to restricted flow or uneven pressure distribution. Installers should also ensure that all connections are tightened to the manufacturer's torque specifications to prevent leaks.

Compatibility and accessories

This manifold is compatible with standard underfloor heating systems using 3/4 inch EK threaded piping. For automated flow control, electrothermal heads such as IVAR.TE 3040, IVAR.TE 4040, IVAR.TE 3041, and IVAR.TE 4041 can be installed in place of the manual valve heads. Additional components such as insulation panels, mounting brackets, and flow meters may be required depending on the system design. It is recommended to use GEL.LONG LIFE 100 for system protection against corrosion and deposits.

Technical background for designers

The manifold operates by distributing return water from the underfloor heating circuits back to the heat source. The CW617N brass body is resistant to dezincification and suitable for use with glycol-based or water-based heat transfer media. The PN 10 rating ensures compatibility with standard heating system pressures. The 50 mm outlet spacing is designed for ease of insulation and integration with standard manifold boxes. The material and design ensure long-term reliability in closed heating systems with proper maintenance and flushing procedures.

Service and operation

Regular maintenance includes checking for leaks at all connections and verifying the operation of the shut-off valves. The manufacturer recommends a thorough system flush before commissioning, especially when combining floor heating with radiator circuits. Deposits and debris in the system can cause blockages or reduce efficiency. If electrothermal heads are used, ensure they are compatible with the system's control logic and power supply. No specific service intervals are provided, but visual inspections should be performed during routine system checks.

Frequently asked questions

Can the manual valve heads be replaced with electrothermal heads?
Yes, the manual valve heads can be replaced with electrothermal heads such as IVAR.TE 3040, IVAR.TE 4040, IVAR.TE 3041, and IVAR.TE 4041 for automated flow control.

Is this manifold suitable for use with glycol-based heat transfer media?
Yes, the CW617N brass body is compatible with glycol-based media and provides resistance to corrosion and dezincification in closed systems.

What is the recommended spacing between the outlets?
The outlets are spaced 50 mm apart, which is standard for underfloor heating systems and ensures compatibility with insulation panels and mounting brackets.

Can this manifold be used in systems with both floor heating and radiators?
Yes, the manifold is suitable for systems with combined floor heating and radiator circuits. However, a thorough system flush is recommended before commissioning to prevent blockages caused by debris.