Manifold - with EK pins, 1" x EK, 4-way

Product detailed description

This 4-way manifold is designed for use in residential and commercial heating and plumbing systems where multiple branch circuits need to be connected to a single supply line. It is commonly used in underfloor heating systems, radiator circuits, and hot water distribution networks. Installers working on new builds or renovations will find it useful for connecting to heat emitters such as radiators, baseboard heaters, or heat exchangers. The EK pin connections allow for quick and secure assembly without the need for soldering or threading.

The manifold is suitable for both low-temperature and conventional heating systems operating up to 120°C. The nickel-plated brass body provides resistance to corrosion and ensures long-term durability in wet environments. The EPDM O-rings offer a reliable seal against leakage, even when exposed to hot water and steam. The compact design allows for easy integration into tight spaces, such as mechanical rooms or underfloor cavities.

Technical parameters

Material	Nickel-plated brass CW617N with EPDM O-ring
Operating temperature	+120 °C
Nominal pressure	PN 10
Weight	0.389 kg
Code	501689N
Brand	IVAR

The PN10 pressure rating indicates that the manifold is suitable for systems with a maximum operating pressure of 10 bar. The maximum operating temperature of 120°C means it can be used in high-temperature applications such as condensing boilers or solar thermal systems. These parameters are essential for ensuring compatibility with the rest of the system components and for correct sizing during planning.Installation and connection To install the manifold, first ensure the system is depressurised and disconnected from the power supply. The 1 inch female metric inlet should be connected to the main supply pipe using a standard 1 inch male metric fitting. The four EK outputs are spaced 40 mm apart and should be connected to individual branch circuits using EK connectors. The EK pins must be fully seated and rotated to lock the connection securely. After installation, perform a visual inspection to confirm all connections are tight and leak-free. A common mistake is misalignment of the EK pins, which can cause leaks or restrict flow.Compatibility and accessories This manifold is compatible with IVAR.CS200 N series components and other standard EK pin fittings. For a complete system setup, additional components such as valves, balancing devices, and insulation may be required. Accessories like EK pin connectors and sealing rings should be ordered separately to ensure a watertight installation. The manifold is suitable for use with copper, plastic, and stainless steel piping systems.Technical background for designers The manifold operates as a central distribution point, dividing the incoming flow into four equal or adjustable branches depending on system requirements. The nickel-plated brass body provides good thermal conductivity and structural stability, while the EPDM O-rings ensure a flexible and durable seal. The PN10 rating means it is suitable for most domestic and light commercial heating systems. The operating temperature limit of 120°C is important for system design, particularly when integrating with high-efficiency boilers or solar collectors. Proper flow balancing is critical to avoid uneven heating and system inefficiencies.Service and operation Regular visual inspections should be carried out to check for signs of corrosion, leakage, or wear around the EK pins and O-rings. If any issues are detected, the affected connections should be disassembled and resealed with new EPDM O-rings. No scheduled service intervals are specified for this component, but maintenance should be performed as part of routine system checks.Frequently asked questions

Can this manifold be used with a condensing boiler?
Yes, provided the system operating temperature does not exceed 120°C and the pressure remains within the PN10 rating.

What is the recommended pipe size for the inlet?
A 1 inch pipe is suitable for the female metric inlet to maintain proper flow and pressure in the system.

Are the EK pin connections reusable?
Yes, the EK pin connections can be reused multiple times, but the EPDM O-rings should be replaced after each disassembly to maintain a watertight seal.

Can this manifold be used in a hot water recirculation system?
Yes, as long as the system pressure and temperature remain within the specified limits of PN10 and 120°C.