Thermostatic double control valve - axial, 1/2"

Product detailed description

Thermostatic double control valves are essential in hydronic heating systems where precise flow regulation is required. These valves are commonly used in residential and commercial buildings for balancing and controlling the flow of hot water in radiators, underfloor heating systems, or other terminal units. Installers and system designers use these valves to ensure even heat distribution and to maintain system efficiency. The axial design of the IVAR VCR 2132 N allows for linear movement of the valve seat, which provides consistent and accurate flow control over a range of operating conditions.

In systems with steel piping, the VCR 2132 N is installed between the pipe and the radiator or heat emitter. The valve is typically mounted in a vertical position to ensure proper operation of the internal thermostat. The connection to the pipe is made using a threaded M30 x 1.5 fitting, and the 1/2 inch inlet allows for integration into standard pipe networks. The valve is designed for use in systems where the media is hot water and the temperature does not exceed 120°C. It is not suitable for steam or other non-compatible media.

Technical parameters

Material	Nickel-plated brass CW617N
Operating temperature	+120 °C
Nominal pressure	PN 10
Weight	0.249 kg
Code	500810
Brand	IVAR

The nominal pressure rating of PN 10 indicates that the valve is suitable for systems operating at up to 10 bar. The maximum operating temperature of 120°C means it is appropriate for use in high-temperature heating systems. The CW617N brass body provides good corrosion resistance and mechanical strength. The pre-adjustable Kv value allows for initial flow setting, which can be fine-tuned during commissioning to match the system requirements. These parameters are critical for correct valve sizing and selection in accordance with the system’s hydraulic design.

Installation and connection

The VCR 2132 N is installed using a threaded M30 x 1.5 connection for the valve head and a 1/2 inch inlet for the pipe. The valve must be connected to a steel pipe using standard threading techniques. It is important to ensure that the threads are properly sealed with thread sealant or PTFE tape to prevent leaks. The valve should be mounted vertically, with the head positioned at the top, to allow for correct operation of the internal thermostat. During installation, the Kv value should be set according to the system design. Common installation errors include incorrect orientation, failure to seal the threads, and incorrect adjustment of the flow setting. These can lead to poor system performance and reduced efficiency.

Compatibility and accessories

The VCR 2132 N is compatible with standard steel pipe systems and is typically used in conjunction with radiators or other heat emitters. It is designed for use with thermostatic radiator valves and can be integrated into systems with manual or automatic balancing. No additional accessories are required for basic installation, but it may be necessary to order thread sealant or PTFE tape separately. The valve is not compatible with copper or plastic piping due to the specific connection requirements.

Technical background for designers

The VCR 2132 N operates using a bimetallic or wax thermostat that responds to room temperature changes. As the temperature increases, the thermostat expands, reducing the flow of hot water through the valve. This helps maintain a consistent room temperature. The nickel-plated CW617N brass body provides good thermal conductivity and resistance to corrosion, ensuring long-term reliability. The valve is designed to be integrated into a balanced system, where the flow rate is adjusted to match the heat demand of the room. The service life and efficiency of the valve depend on the quality of installation, correct adjustment, and the operating conditions of the system.

Service and operation

The VCR 2132 N requires minimal maintenance. Regular visual inspections should be carried out to check for leaks or signs of wear. The valve should be tested periodically to ensure that the thermostat is functioning correctly and that the flow setting remains stable. No specific service intervals are provided, but it is recommended to inspect the valve during routine system maintenance. If the valve becomes unresponsive or fails to regulate the flow, it should be replaced. The valve is not designed for disassembly or repair in the field.

Frequently asked questions

Can the VCR 2132 N be used in copper pipe systems?
No, the valve is designed for use with steel pipes and requires a specific threaded connection that is not compatible with copper piping.

Is it possible to adjust the flow setting after installation?
Yes, the pre-adjustable Kv value can be modified during commissioning to match the system requirements. However, it is not designed for frequent readjustment.

Can the valve be used in a system with a temperature higher than 120°C?
No, the maximum operating temperature is 120°C. Exceeding this temperature may damage the internal components and affect the valve’s performance.

Does the valve require a separate balancing device?
No, the VCR 2132 N is a self-regulating valve and does not require additional balancing equipment. It is suitable for use in systems where manual balancing is not required.