Radiator valve VD with presetting - straight, 3/8"

Product detailed description

The VD presetting radiator valve is commonly used in residential and commercial heating systems to regulate heat output from radiators. It is particularly suited for systems where pre-set flow rates are required to ensure balanced distribution. Installers working on steel pipe-based systems will find this valve suitable for integration into traditional or modern heating circuits. The valve's presetting feature allows for accurate flow control without the need for manual adjustment after installation, making it ideal for applications where system balancing is critical. The nickel-plated brass construction ensures durability and resistance to corrosion, making it suitable for long-term use in central heating environments.

When installing this valve, it is important to ensure compatibility with the system's piping and other components. The valve is designed for use in systems operating under nominal pressure conditions and must be correctly sized to match the flow requirements of the radiator it serves. The presetting function is set during manufacturing and should not be altered unless system conditions change significantly. This valve is not intended for use in systems with variable flow rates or where frequent manual adjustments are required.

Technical parameters

Material	Nickel-plated brass CW617N
Nominal pressure	PN 10
Weight	0.17 kg
Code	500561
Brand	IVAR

The valve is rated for a nominal pressure of PN 10, indicating its suitability for standard central heating systems. The nickel-plated brass CW617N material provides good mechanical strength and resistance to thermal cycling. These parameters are essential for ensuring the valve can handle typical operating conditions and remain functional over time. When selecting this valve, the nominal pressure rating and material properties should be considered to ensure compatibility with the system's design and operating conditions.

Installation and connection

The VD presetting valve is designed for straight pipe connections with a 3/8 inch thread. Prior to installation, ensure that the system is depressurised and that the valve is compatible with the pipe material and diameter. The valve should be installed in a position that allows for easy access during maintenance. Common installation errors include incorrect thread orientation and failure to check for debris in the piping before fitting. It is important to use appropriate sealing materials, such as PTFE tape, to ensure a leak-free connection. After installation, verify that the valve is fully open and that there are no obstructions in the flow path.

Compatibility and accessories

This valve is compatible with steel pipe systems and is intended for use with radiators that require preset flow control. It is typically used in conjunction with other standard heating system components such as thermostatic radiator valves and balancing valves. No additional accessories are required for standard installation, but it is important to ensure that the system's piping and fittings are compatible with the valve's thread size and material. There are no related products listed for this model.

Technical background for designers

The VD valve operates by allowing a pre-set flow rate through the radiator circuit, which is determined during manufacturing. The nickel-plated brass CW617N material offers good thermal conductivity and mechanical strength, making it suitable for use in central heating systems. The valve's design ensures minimal pressure drop across the component, which helps maintain system efficiency. The material's resistance to corrosion and thermal expansion ensures long-term reliability. The valve's integration into the system depends on the overall system design, including pipe sizing and flow requirements. The service life of the valve is influenced by the quality of the installation and the operating conditions of the system.

Service and operation

The valve requires minimal maintenance due to its preset design and durable construction. Regular checks should be performed to ensure that the valve remains free from blockages and that the system operates within the specified pressure range. If the system is modified or if flow conditions change significantly, the valve may need to be replaced or adjusted. No specific service intervals are provided in the brief, but it is recommended to inspect the valve during routine system maintenance.

Frequently asked questions

Can the VD valve be used in systems with copper piping?
Yes, the valve is compatible with copper piping as long as the connection size and thread type match the valve's specifications.

Is the presetting feature adjustable after installation?
No, the presetting is factory-set and cannot be adjusted manually after installation. Any changes to the flow rate would require replacing the valve.

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

Can this valve be used with thermostatic controls?
Yes, the valve can be used in conjunction with thermostatic controls, but the presetting function remains fixed and cannot be altered by the thermostat.