Radiator valve VD with presetting - straight, 3/4"

Product detailed description

This straight preset radiator valve is commonly used in residential and commercial heating systems to regulate the flow of hot water through radiators. It is suitable for installations involving steel piping and is designed for integration into traditional central heating systems. Installers typically use this valve in applications where a fixed flow rate is required, such as in pre-set systems or where balancing is not necessary. The valve is often found in new builds and retrofit projects where consistent heat output is desired without manual adjustment.

The valve is designed for use in systems operating at temperatures up to +120°C and is intended for use with steel piping. It is suitable for installation in both single and multi-zone heating systems. The nickel-plated brass construction provides resistance to corrosion and ensures long-term durability in typical heating environments. The 3/4 inch thread size is a standard dimension used in many European heating systems, making this valve a versatile option for a wide range of applications.

Technical parameters

Installation and connection

Installation of this straight preset radiator valve involves connecting it to steel piping using the 3/4 inch thread. The valve is typically installed at the inlet of the radiator, with the flow direction indicated on the body. Before installation, the system should be depressurised and the pipe ends cleaned to ensure a secure connection. A common mistake is incorrect orientation of the valve, which can lead to improper flow and reduced efficiency. Installers should also check that the thread is clean and undamaged before tightening the connection to prevent leaks.

Compatibility and accessories

This valve is compatible with standard steel pipe systems and is designed for use with radiators that require a fixed flow rate. It is not intended for use with thermostatic radiator valves or systems requiring manual flow adjustment. When installing this valve, it is important to ensure that the system includes appropriate shut-off valves and pressure relief devices. No additional accessories are required for basic installation, but system-specific components may be needed depending on the overall design.

Technical background for designers

The valve operates by allowing a fixed flow rate of hot water through the radiator, based on the presetting during manufacturing. The nickel-plated brass body ensures resistance to corrosion and wear, making it suitable for long-term use in heating systems. The PN 10 pressure rating ensures that the valve can withstand typical operating pressures in domestic and light commercial systems. The integration of this valve into the system depends on the overall design, including the type of piping and the desired heat output. The material properties and pressure rating directly affect the valve's service life and efficiency in the system.

Service and operation

Regular inspection of the valve is recommended to ensure it remains leak-free and functions correctly. The connection should be checked for signs of wear or corrosion, particularly at the thread. No specific service intervals are provided, but any visible damage or leaks should be addressed immediately. The valve is not designed for frequent adjustment, so it is important to ensure the correct presetting is selected during installation to avoid the need for future intervention.

Frequently asked questions

Can this valve be used with copper piping?
This valve is designed for use with steel piping. While it may be compatible with copper piping in some cases, it is not specifically tested or certified for this application.

Is this valve suitable for use in high-pressure systems?
The valve has a nominal pressure rating of PN 10, which means it is suitable for systems operating at up to 10 bar. It is not intended for use in high-pressure systems beyond this rating.

Can this valve be adjusted after installation?
This valve is preset during manufacturing and is not designed for adjustment after installation. It is intended for use in systems where a fixed flow rate is required.

What is the maximum operating temperature for this valve?
The valve is suitable for use in systems operating at temperatures up to +120°C, as specified in the technical data.