Radiator valve with presetting - corner, 1/2" x EK

Product detailed description

This corner-mounted radiator valve is commonly used in residential and commercial heating systems to regulate water flow through radiators. Installers and technicians use it in central heating applications where accurate flow control is required. The valve is designed for integration with copper or plastic piping using compression fittings, making it suitable for both new and retrofit installations. Its compact design and presetting feature simplify balancing of the system during commissioning.

Typical applications include single or double pipe systems where each radiator requires individual flow adjustment. The valve is often found in multi-family buildings, offices, and industrial facilities with district or boiler-based heating systems. Due to its corner orientation, it is particularly useful in tight spaces or when connecting to pipes at right angles.

Technical parameters

Installation and connection

Installers should prepare the pipe ends by ensuring they are clean, straight, and free from burrs. The valve connects to copper or plastic pipes using compression fittings (IVAR.TR for copper, IVAR.TA for Alpex, IVAR.TP for plastic). The 1/2 inch inlet and EK (external thread) outlet require correct alignment to avoid leakage. After fitting, the system should be tested for tightness before final sealing with PTFE tape or sealing compound.

Common installation mistakes include incorrect tightening of compression fittings, which can cause leaks or damage the seal. The presetting should remain untouched unless system balancing requires manual adjustment. Always verify the direction of flow indicated on the valve body to prevent improper operation.

Compatibility and accessories

This valve is compatible with standard copper and plastic piping systems. To complete the connection, installers must order compression fittings separately, such as IVAR.TR for copper, IVAR.TA for Alpex, and IVAR.TP for plastic. It is intended for use with radiators requiring individual flow control and is typically paired with a second valve (thermostatic or on/off) for full system regulation.

Technical background for designers

The valve operates by allowing water to flow through the radiator at a pre-set rate, which helps maintain balanced heat distribution across the system. The nickel-plated brass body resists corrosion and maintains structural integrity at high temperatures. The material also ensures good thermal conductivity and minimal pressure drop across the valve. For efficient system performance, designers should account for the valve’s nominal pressure and temperature limits when selecting components and planning the hydraulic layout.

Service and operation

During routine maintenance, technicians should inspect the valve for signs of leakage around the compression fittings and verify the presetting remains intact. If the system shows uneven heating, the presetting may need rechecking. No regular service intervals are specified, but visual inspections are recommended during annual system checks. Any damage to the body or fittings should be addressed immediately to prevent system failure.

Frequently asked questions

Can this valve be used with plastic pipes?
Yes, the valve can connect to plastic pipes using IVAR.TP compression fittings. Ensure the pipe ends are properly prepared before installation.

Is it possible to adjust the preset flow rate manually?
Yes, the presetting can be adjusted if system balancing requires it. However, any changes should be documented and verified during commissioning.

What sealing material is recommended for the EK thread?
PTFE tape or a sealing compound is suitable for the external thread (EK). Apply evenly to prevent over-tightening and potential thread damage.

Can this valve be used in a two-pipe system?
Yes, it is suitable for two-pipe systems where each radiator requires individual flow control. Pair it with a thermostatic valve for full regulation.