Set M - valve - corner, 1/2" x EK, 16 x 2

Product detailed description

This IVAR M-valve corner set is commonly used in residential and commercial heating systems where radiators with 1/2 inch internal thread need to be connected to copper or ALPEX piping. The set is suitable for integration into central heating systems with standard radiator connections and is often found in new builds or renovation projects where precise flow control and thermal regulation are required. The compact design allows for installation in tight spaces, and the set is particularly useful in systems where space constraints or pipe routing make straight-line connections impractical.

Installers working with this product typically deal with pre-assembled radiator connections that require secure and leak-free compression fittings. The set is designed for use with copper pipes (Ø 15 x 1 mm) and ALPEX multi-layer pipes (Ø 16 x 2 mm), ensuring compatibility with a wide range of piping systems. The corner configuration allows for directional changes in the piping layout, which is essential in systems with complex routing or where space is limited.

Technical parameters

Installation and connection

Installation involves connecting the M-valve to the radiator using the 1/2 inch internal thread and securing the compression fittings to the copper or ALPEX piping. The IVAR TR 4430 fittings are used for copper pipes, while IVAR TA 4420 fittings are used for ALPEX. The tightening torque must be carefully followed: 20–35 Nm for TA 4420 and 35–45 Nm for TR 4430. It is important to check that the threads are clean and free of debris before assembly to prevent leaks. A common mistake is over-tightening the compression fittings, which can damage the sealing surfaces and lead to leaks or pipe deformation.

Compatibility and accessories

This set is compatible with radiators that have a 1/2 inch internal thread, such as those from KORADO, PURMO, and KORAD. The included compression fittings are suitable for copper and ALPEX piping, making the set versatile for different pipe materials. No additional accessories are required for standard installation, as the set includes all necessary components for a complete connection. Related products include other IVAR M-valve sets and compression fittings for different pipe sizes and configurations.

Technical background for designers

The M-valve operates by regulating the flow of hot water through the radiator based on the temperature of the room. The thermostatic head responds to ambient temperature changes and adjusts the valve opening accordingly. The nickel-plated brass CW617N material provides good thermal conductivity and resistance to corrosion, ensuring long-term reliability. The set is designed to integrate seamlessly into central heating systems, with the corner configuration allowing for directional changes in the piping layout. The service life and efficiency of the set are influenced by the quality of the installation, the cleanliness of the threads, and the correct application of tightening torque during assembly.

Service and operation

Regular inspection of the compression fittings and valve connections is recommended to ensure there are no leaks or signs of wear. The tightening torque should be verified periodically, especially after the initial heating season, to maintain a secure connection. No specific service intervals are provided in the brief, but any issues with flow control or temperature regulation should be addressed by checking the thermostatic head and valve for blockages or damage. The nickel-plated brass construction requires minimal maintenance and is resistant to common forms of corrosion in heating systems.

Frequently asked questions

Can this M-valve set be used with copper pipes of different diameters?
No, the set is specifically designed for copper pipes with a diameter of Ø 15 x 1 mm. Using pipes of different diameters may result in improper sealing and leaks.

Is it possible to use this set with radiators that have an external thread instead of an internal thread?
No, the set is intended for radiators with a 1/2 inch internal thread. Radiators with external threads require a different type of connection or an adapter.

Can the compression fittings be reused after disassembly?
No, the compression fittings are designed for single-use only. Reusing them may compromise the sealing integrity and lead to leaks.

What should be done if the thermostatic head does not respond to temperature changes?
The thermostatic head should be checked for blockages or damage. If the issue persists, it may need to be replaced to restore proper function.