Manifold - fitted with shut-off valves - 1 "xEK; 5-way; brass IVAR.CS 553

Product detailed description

This manifold is commonly used in residential and commercial underfloor heating systems where individual circuit flow control is required. It allows the installer to regulate the return water flow using manually operated shut-off valves, ensuring balanced heat distribution. The unit is suited for use in both new builds and retrofit projects involving mixed heating systems such as underfloor and radiator heating combinations.

Installers typically encounter this component in central heating rooms or plant rooms where space is limited but accessibility is essential for maintenance. The compact design and side-mounted connections allow for easy integration into standard pipe layouts. The system operates by directing return water from multiple floor heating loops back to the boiler, with each loop controlled independently via its respective valve.

Technical parameters

Material	Brass CW617N
Operating temperature	+120 °C
Nominal pressure	PN 10
Spacing of outlets	50 mm
EAN	8595145905287
Weight	1.707 kg
Code	501673
Brand	IVAR

The maximum operating temperature of +120°C and PN 10 pressure rating are important for determining the suitability of this manifold for use with high-efficiency condensing boilers and underfloor heating systems. These parameters ensure compatibility with standard heating system pressures and temperatures, while the brass construction provides corrosion resistance and long-term durability in wet environments.

Installation and connection

When installing this manifold, begin by positioning it in a location that allows for unobstructed access to the shut-off valves. The 1 inch F inlet should be connected to the return water supply line, while the five 3/4 inch EK outlets connect to individual heating circuits. Ensure all connections are tightened to the recommended torque for the fitting type to prevent leaks. Verify that the 50 mm spacing between outlets aligns with the planned pipe layout. Common installation errors include using incorrect thread sealants incompatible with brass components or failing to clean the internal system before commissioning. Always follow the manufacturer’s instructions regarding system flushing to remove debris that could damage the valves or block the heating circuits.

Compatibility and accessories

This manifold is compatible with standard underfloor heating systems that use 3/4 inch EK threaded fittings. It can also be integrated with electric actuators such as IVAR.TE 3040, IVAR.TE 4040, IVAR.TE 3041, and IVAR.TE 4041 to enable automated flow control. For complete system functionality, ensure that the necessary pipe fittings and insulation materials are available on site.

Technical background for designers

The manifold operates by dividing the return water flow into multiple circuits, each controlled by a separate shut-off valve. The brass CW617N material offers good thermal conductivity and resistance to corrosion in water-based heating systems. The design ensures minimal hydraulic resistance between the inlet and each outlet, supporting even flow distribution. Long-term performance depends on the quality of system filtration and the absence of particulate matter in the water, which can cause premature wear of the valve seats.

Service and operation

During routine maintenance, inspect the shut-off valves for signs of leakage or stiffness in operation. Clean the internal surfaces if sediment accumulation is observed. Although no specific service intervals are provided, regular visual checks are recommended after major system flushes or when integrating with new heating circuits.

Frequently asked questions

Can this manifold be used with automated temperature control systems?
Yes, the manual shut-off valves can be replaced with electric actuators such as IVAR.TE 3040 or IVAR.TE 4041 to enable automated regulation.

Is this manifold suitable for mixed heating systems?
Yes, it is designed for use in systems combining underfloor heating with other types of heating, provided the system is properly flushed and maintained.

What is the maximum number of circuits supported?
This model supports five circuits, with each connected via a 3/4 inch EK outlet.

Can the valve heads be replaced individually?
Yes, the manual heads can be removed and replaced with electric actuators as required for automation purposes.