Objectives of Thermography in Steam Systems

• Identify heat losses through uninsulated or poorly insulated piping.
• Detect steam leaks from valves, flanges, or fittings.
• Pinpoint faulty steam traps (e.g., passing steam or blocked traps).
• Locate blockages or restrictions in steam piping.
• Assess insulation integrity across steam lines.
• Check performance of heat exchangers, pressure reducing valves (PRVs), and other components.

Key Components to Survey

Steam Traps

• Compare temperatures on inlet and outlet sides.
• Identify traps passing live steam or showing cold, non-condensing temperatures.

Valves & Flanges

• Detect leakage or bypassing in valves.
• Identify hot spots or irregular heat signatures indicating failure.

Insulation Systems

• Scan for exposed hot surfaces suggesting missing or damaged insulation.

Condensate Return Lines

• Ensure proper condensate flow and absence of blockages or backlogs.

Heat Exchangers & PRVs

• Look for uneven heating, temperature anomalies, or flow issues.