Dynamic thermostatic valve - direct, 3/8"

Product detailed description

Dynamic thermostatic valves are essential in hydronic heating systems where flow balancing and temperature regulation are required. This model is commonly used in residential and commercial buildings with central heating systems. Installers and service technicians typically encounter these valves in radiator circuits, where they help maintain consistent room temperatures by adjusting the flow of hot water based on demand. The valve is designed for direct installation and is compatible with standard steel pipe systems, making it a versatile component in both new and retrofit projects.

When integrating this valve into a system, it is important to consider the overall flow dynamics and the need for accurate flow control. The valve’s dynamic balancing feature ensures that the flow remains stable even under varying system pressures. This makes it particularly useful in multi-zone systems where maintaining balanced flow is critical for efficient operation and energy savings.

Technical parameters

Material	Nickel-plated brass CW617N
Operating temperature	120 °C
Nominal pressure	PN 10
Weight	0.295 kg
Code	501186
Brand	IVAR

The valve is rated for a maximum operating temperature of 120°C and a nominal pressure of PN 10, which defines its suitability for standard heating systems. The nickel-plated brass body (CW617N) ensures corrosion resistance and durability in wet environments. These parameters are essential for proper sizing and selection, especially when matching the valve to the system’s operating conditions and flow requirements.

Installation and connection

The valve is designed for direct installation and features a 3/8 inch connection for integration into the heating circuit. The head of the valve has an M30 x 1.5 thread for attaching control heads or actuators. During installation, it is important to ensure that the valve is correctly oriented and that the sealing surfaces are clean and undamaged. A common mistake is incorrect tightening of the connections, which can lead to leaks or reduced performance. Always verify the alignment of the valve body with the flow direction and confirm that the system pressure does not exceed the PN 10 rating.

Compatibility and accessories

This dynamic thermostatic valve is compatible with standard steel pipe systems and is intended for use with control heads or actuators that fit the M30 x 1.5 thread. When ordering, ensure that the control head or actuator is compatible with the valve’s Kv value and operating range. Additional components such as balancing tools or flow meters may be required for system commissioning, depending on the complexity of the installation.

Technical background for designers

The valve operates by adjusting the flow of hot water in response to temperature changes in the system. The nickel-plated brass body (CW617N) provides good thermal conductivity and resistance to corrosion, ensuring long-term reliability. The dynamic balancing feature allows the valve to maintain a stable flow rate even when system pressure fluctuates. The integration of this valve into a heating system depends on the overall design of the circuit, including pipe sizing, pump capacity, and the presence of other balancing components. The service life and efficiency of the valve are influenced by the quality of the installation, the cleanliness of the system, and the regularity of maintenance checks.

Service and operation

While no specific service intervals are provided in the technical data, it is recommended to inspect the valve periodically for signs of wear, corrosion, or blockages. Check the sealing surfaces and connections for leaks, and ensure that the control head or actuator is functioning correctly. If the system experiences reduced performance or inconsistent temperature control, the valve may need to be recalibrated or replaced. Always refer to the manufacturer’s technical data sheet for detailed service instructions.

Frequently asked questions

Can this valve be used in a system with a temperature above 120°C?
No, the valve is rated for a maximum operating temperature of 120°C. Exceeding this temperature may cause damage to the internal components.

Is the valve compatible with copper or plastic piping?
It is specifically designed for use with steel pipe systems. Compatibility with other pipe materials should be verified according to the manufacturer’s technical data sheet.

Can the Kv value be adjusted after installation?
Yes, the valve is pre-set to a specific Kv value, but this can be adjusted during installation to match the system requirements.

What is the recommended tightening torque for the M30 x 1.5 thread?
The tightening torque should be applied according to the manufacturer’s specifications to avoid over-tightening or under-tightening the connection.