Dynamic thermostatic valve - corner, 1/2" x EK

Product detailed description

Dynamic thermostatic valves are commonly used in residential and commercial hydronic heating systems to maintain consistent room temperatures by regulating the flow of hot water through radiators or underfloor heating circuits. These valves are often installed in systems where precise flow control is required, such as in multi-room buildings or systems with variable load conditions. Installers must ensure that the valve is correctly sized and integrated with the system to avoid over- or under-supplying heat to specific zones. The valve’s dynamic balancing feature helps maintain stable flow rates even when system conditions fluctuate.

Technical parameters

Material	Nickel-plated brass CW617N
Operating temperature	120 °C
Nominal pressure	PN 10
Weight	0.27 kg
Code	501185
Brand	IVAR

The operating temperature limit of 120°C and nominal pressure rating of PN 10 define the valve’s suitability for standard central heating systems. The nickel-plated brass body (CW617N) ensures corrosion resistance and long-term durability in hot water environments. The pre-set Kv value allows for initial flow rate adjustment, which is essential for system balancing during commissioning.

Installation and connection

This corner valve is designed for 1/2 inch pipe connections and features an EK (external key) connection type for secure assembly. The valve head connects via a M30 x 1.5 thread, which must be aligned correctly with the actuator or control head. When installing, ensure that the valve is mounted in the correct orientation, with the flow direction indicated on the body. Common mistakes include incorrect thread engagement or failure to check the sealing surfaces before tightening. Always verify the compatibility of the connection type with the pipe material—copper, ALPEX, or plastic—and use the appropriate IVAR connection fittings (TR, TA, or TP) to ensure a leak-free installation.

Compatibility and accessories

The valve is compatible with copper and plastic piping systems via the use of IVAR.TR, IVAR.TA, and IVAR.TP compression fittings. For full system integration, the valve must be paired with a suitable control head or actuator that fits the M30 x 1.5 thread. No additional accessories are included in the standard packaging, so ensure that all necessary fittings and tools are available before installation.

Technical background for designers

The dynamic thermostatic valve operates by adjusting the internal flow passage in response to temperature changes in the system. The nickel-plated brass body (CW617N) offers high thermal conductivity and resistance to corrosion, making it suitable for long-term use in hot water environments. The valve’s dynamic balancing mechanism ensures that the flow remains stable even when the system pressure varies. The pre-set Kv value allows for initial flow rate adjustment, which is essential for system balancing during commissioning. The valve’s performance is influenced by the quality of the connection, the accuracy of the pre-setting, and the overall system design.

Service and operation

The valve requires minimal maintenance under normal operating conditions. Regular checks should include inspecting the connection for leaks and verifying that the valve is functioning as intended. If the system experiences unusual fluctuations in temperature or pressure, the valve should be inspected for blockages or wear. No specific service intervals are provided in the technical data, but any signs of malfunction should be addressed promptly to avoid system inefficiencies.

Frequently asked questions

Can this valve be used with plastic piping systems?
Yes, the valve is compatible with plastic piping systems when used with the appropriate IVAR.TP compression fittings.

Is the valve suitable for use in high-temperature applications?
The valve is rated for a maximum operating temperature of 120°C, making it suitable for standard central heating systems.

Can the Kv value be adjusted after installation?
The valve has a pre-set Kv value that can be adjusted during installation to match the system requirements.

What connection types are available for this valve?
The valve features a 1/2 inch connection and an EK (external key) fitting for secure assembly.