OPTIMA regulating unions - straight / angle, three-axis

The OPTIMA control screws category includes straight, corner, and three-axis models designed for use in bathroom heating systems. These fittings integrate with thermostatic valves and feature a built-in thermostatic insert for accurate temperature regulation. They are suitable for applications where variable flow control and precise adjustment are required, such as in underfloor heating or panel radiators. The models are constructed from brass CW617N with a surface treatment for durability and corrosion resistance.

Available in both chrome and inox finishes, these control screws are ideal for professional installation in plumbing and heating systems. They are compatible with PN 10 systems and operate at a maximum temperature of +100 °C. The connection sizes include 1/2" and M24 threads, ensuring compatibility with standard pipe and valve configurations.

How to choose

• Select the correct model (straight, corner, or three-axis) based on the system layout and flow direction.
• Ensure the connection size matches the pipe or valve thread (1/2" and M24 are available).
• Choose between chrome or inox finish to suit the aesthetic and environmental requirements of the installation.

Frequently asked questions

Can OPTIMA control screws be used in underfloor heating systems?
Yes, the three-axis model is particularly suitable for underfloor heating due to its ability to adjust flow in multiple directions.

What is the maximum operating temperature for these control screws?
The maximum operating temperature is +100 °C, making them suitable for standard heating applications.