Freeze protection
Support exposed instrument, process and utility lines through cold conditions. Define the winter ambient, flow and shutdown scenario before selecting the heater.
DEKORON UNITHERM · SUPPLIED BY PMA
Freeze protection and temperature maintenance, brought together in a factory-built tubing bundle.

ELECTRICALLY TRACED TUBING
An electric heater runs alongside the process tube inside thermal insulation and a protective outer jacket. The assembly supplies heat along the line to help preserve flow or maintain a specified process temperature. PMA helps you consider the heater, tubing and installation as one system.

Choose the heating arrangement around the fluid, the required temperature and the available electrical supply.
Support exposed instrument, process and utility lines through cold conditions. Define the winter ambient, flow and shutdown scenario before selecting the heater.
Keep temperature-sensitive fluids or analytical samples within the specified duty. The maintained temperature depends on the complete design and operating conditions.
Conventional fibrous-glass and aerogel constructions are available. Aerogel options can improve thermal efficiency and reduce the bundle outside diameter.
Options include carrier-tube replaceable heaters and multiple heating zones. Availability depends on tube count, material and the selected construction.
TECHNICAL INFORMATION
Published range information and the inputs needed to specify your assembly.
| Parameter | Range information / requirement |
|---|---|
| Tube outside diameters | ¼, ⅜, ½ and ¾ inch |
| Common wetted materials | 316/316L stainless steel, copper and PFA; family dependent |
| Self-regulating bundle | 1–4 tubes, subject to diameter and material |
| Low-temperature self-regulating | Published maximum operating temperature: 85°C |
| High-temperature self-regulating | Published maximum operating temperature: 150°C |
| Power-limiting heater | Published maximum operating temperature: 204°C |
| Heating-system specification | Confirm voltage, circuit length, sensing, control and electrical protection |
| High process exposure | State maximum inlet and cleaning temperatures; specialist buffered designs may be required |
Heater operating limits are not guaranteed maintained temperatures. PMA will confirm the thermal design, area classification and documentation for the exact assembly.
Manufacturer product informationAPPLICATION STARTING POINTS
Tell us what the line needs to do, then review the complete construction with PMA.
Review exposed small-bore lines for freeze protection, including intermittent flow and cold shutdowns.
Define sample composition, target temperature and line length to manage condensation between the process and analyser.
Consider viscosity, normal operation, start-up and cleaning conditions together.

PRODUCT DOCUMENTS
The manufacturer’s two-page June 2026 line card provides an overview of Dekoron Unitherm tubing families. Ask PMA for the datasheet, installation instructions and certification relevant to your selected construction.
Download range brochure PDFRequest product-specific documentsUSEFUL TO KNOW
Start with the required maintained temperature, ambient extremes and process exposure. Self-regulating, power-limiting and specialist higher-temperature constructions serve different duties; PMA can review the appropriate option.
Self-regulating describes the heater’s response to temperature. Circuit protection, temperature sensing and control requirements still need to be reviewed against the application and the supplied product instructions.
Include fluid, pressure, tube material and dimensions, tube count, maintained and maximum temperatures, voltage, length, route and any certification requirements.
Talk to PMA about electrically traced tubing. Share the fluid, temperature duty and installation details so we can review the complete tubing assembly.
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