Prefabricated Trace Heating Line

Prefabricated Trace Heating Line Solution

BAOFENG provides prefabricated trace heating line solutions based on long-length stainless steel seamless coiled tubing for industrial process piping, instruments and equipment requiring heat tracing.

The solution can be configured according to the service medium, tube material, tube size, required continuous length and installation conditions.

What Is a Trace Heating Line?

A trace heating line runs alongside process piping, instruments or equipment to provide heat where temperature maintenance is required.

BAOFENG’s technical materials identify typical trace heating targets including:

• Flue gas lines
• Pressure impulse lines
• Control valves
• Process piping
• Instruments installed directly on process equipment
• Instrument insulation boxes

Low-pressure steam is one of the typical heating media used in these systems.

Typical Steam Tracing Conditions

For steam tracing applications documented by BAOFENG, typical steam pressure is:

• 0.2–0.4 MPa low-pressure steam

The tracing tube is typically stainless steel tubing selected according to the operating environment and project requirements.

Typical Tube Sizes

Common stainless steel tube dimensions used for trace heating include:

• φ6 × 1 mm
• φ10 × 1 mm
• φ12 × 1 mm

The final tube size is selected according to the tracing requirement, installation route and project specification.

Material Options

BAOFENG can provide trace heating tubing in materials including:

• 304L
• 316 / 316L
• 317
• 321
• 904L
• Duplex 2205
• Super Duplex 2507
• Alloy 625
• Alloy 825

Material selection depends on corrosion environment, process conditions and project requirements.

Why Long-Length Seamless Tubing?

Traditional installations using short straight tubing sections may require multiple intermediate joints along long tracing routes.

BAOFENG seamless coiled tubing can be supplied in long continuous lengths, helping reduce the number of field connections.

For suitable specifications, BAOFENG can provide seamless stainless steel coiled tubing in continuous lengths exceeding 3,000 metres, reducing intermediate connection points and associated leakage risk.

Typical Applications

Prefabricated trace heating lines can support applications such as:

• Process pipe steam tracing
• Instrument impulse line tracing
• Control valve tracing
• Flue gas line tracing
• Instrument and analyzer line tracing
• Equipment-mounted instrument tracing
• Industrial piping temperature maintenance

BAOFENG specifically lists steam tracing and pre-insulated lines among the major application scenarios for its stainless steel coiled tubing.

From Tubing to a Prefabricated Line

Instead of treating the requirement as only a stainless steel tube supply, the trace heating line can be configured according to the complete installation requirement:

Tube material → Tube size → Heating medium → Continuous length → Routing requirement → Protection / insulation configuration → Inspection → Coil preparation → Project delivery

This approach helps move part of the preparation work away from the jobsite and into a controlled prefabrication process.

Inspection & Quality Control

BAOFENG seamless coiled tubing is subject to air-tightness testing and eddy current inspection as part of its standard quality control.

Hydrostatic and ultrasonic testing can also be added when required by the project.

Project-Based Configuration

To select a suitable prefabricated trace heating line, please provide:

• Traced pipe / instrument type
• Heating medium
• Required tube material
• Tube OD × wall thickness
• Working pressure
• Operating temperature
• Required continuous length
• Installation environment
• Insulation or outer protection requirement

BAOFENG can then recommend a suitable tubing and prefabricated trace heating line configuration according to the project conditions.