Manifold - with EK pins - 1 "xEK; 9-way; nickel IVAR.CS 501 NK

Product detailed description

This nickel-plated distribution manifold is commonly used in hydronic heating systems for residential and commercial buildings. It enables efficient distribution of heated water to multiple circuits in underfloor heating, fan coil units or radiator systems. The compact design allows installation in mechanical rooms, plant rooms or behind false ceilings where space is limited. The EK pin connections simplify integration with prefabricated heating elements while maintaining system integrity.

The manifold connects to the primary heating circuit via a 1 inch female thread, with secondary circuits branching off through 3/4 inch EK pins. The 50 mm spacing between outlets accommodates standard pipe layouts and ensures compatibility with most panel radiators and floor heating manifolds. The nickel plating provides corrosion resistance in wet environments typical of central heating installations.

Technical parameters

Material	Nickel-plated brass CW617N
Operating temperature	+120 °C
Nominal pressure	PN 10
Outlet spacing	50 mm
EAN	8595145902729
Weight	2.167 kg
Code	400399N
Brand	IVAR

The operating temperature limit of +120°C makes this manifold suitable for conventional hot water heating systems but not for high-temperature applications. The PN 10 rating indicates it can handle up to 10 bar pressure, which is standard for most domestic and light commercial heating systems. The 50 mm outlet spacing is important for matching with standard pipe layouts and ensuring proper clearance for insulation and access.

Installation and connection

Begin by positioning the manifold according to the system layout plan, ensuring sufficient clearance for maintenance and balancing valves. Connect the main supply using a 1 inch male thread to match the female inlet. For secondary circuits, insert EK pins into the 3/4 inch outlets and secure with appropriate locking mechanisms. Verify that all connections are tight and leak-free before commissioning. Common installation errors include incorrect orientation of EK pins and failure to align outlet spacing with pre-drilled panels. Always check that the nickel plating is undamaged before final tightening to prevent micro-leaks at connection points.

Compatibility and accessories

This manifold is designed for use with EK pin-equipped heating elements such as panel radiators, underfloor heating collectors and fan coil units. To complete the system, balance valves, shut-off valves and pressure gauges should be added according to the system requirements. The nickel plating ensures compatibility with standard copper and steel piping systems.

Technical background for designers

The CW617N brass alloy provides good mechanical strength and thermal conductivity while resisting dezincification in hot water environments. The nickel plating enhances corrosion resistance and prevents galvanic reactions with other metals in the system. The manifold functions as a central distribution point, dividing the flow from the boiler or heat pump into multiple parallel circuits. Proper sizing depends on the total flow rate required by all connected circuits and the pressure drop across the manifold. The operating life depends on water quality, temperature cycling and maintenance practices. Regular inspection of connections and cleaning of internal passages helps maintain efficiency. The design allows for future expansion by adding more EK pins if additional circuits are required during system upgrades.

Service and operation

During routine maintenance, check all connections for signs of leakage or corrosion. Inspect the nickel plating for scratches or pitting that could lead to premature failure. Clean internal passages periodically to remove sediment buildup that might restrict flow. No scheduled service intervals are specified, but visual inspections should be performed during annual system checks.

Frequently asked questions

Can this manifold be used with underfloor heating systems?
Yes, the 3/4 inch EK outlets are compatible with standard underfloor heating collectors when used with appropriate connecting fittings.

Is this manifold suitable for use with condensing boilers?
It can be used with condensing boilers provided the return water temperature remains above the dew point to prevent acidic condensate formation.

Can the outlet spacing accommodate standard radiator panels?
The 50 mm spacing matches standard mounting holes in many radiator panels, allowing direct connection without additional adaptors.

What type of sealing material should be used for the 1 inch inlet?
Use a standard PTFE tape or anaerobic thread sealant suitable for brass-to-steel connections in hot water applications.