Pipes

❄️ Where is cold insulation placed?
Key areas to prevent condensation, thermal loss, and corrosion

Cold insulation is essential in facilities that handle fluids or gases at temperatures below ambient. Proper installation prevents condensation, saves energy, and prevents corrosion under insulation (CUI) damage.

🔧 Common areas where cold insulation is applied:

Refrigeration and freezing pipes

Chilled water, ammonia, glycol, CO₂, etc.

In food plants, cold rooms, refrigerated vessels.

Cryogenic or refrigerated storage tanks

Nitrogen, oxygen, industrial gases, or milk/fish tanks.

Valves, flanges, and cold line fittings

Require detailed insulation and precise sealing to prevent moisture leakage points.

Refrigeration units (compressors, evaporators, chillers)

To maintain operational efficiency and protect equipment.

Air conditioning ducts (HVAC)

Prevents condensation and improves air conditioning.

🧱 Common materials for cold insulation:
Selected for their low thermal conductivity and moisture resistance:

Material - Main application - Temperature range
Elastomeric foam (NBR or EPDM). - Refrigeration pipes and ducts. - -50°C to +105°C

Polyurethane (PUR / PIR). - Pipes, tanks, and panels -180°C to +120°C

Expanded polystyrene (EPS). - Tanks, floors, and refrigeration chambers. - -50°C to +75°C

Foam glass - Cryogenic and industrial processes -180°C to +430°C

Vapor barriers (aluminum foil, PVC, bituminous) Protect insulation from external moisture -50°C to +100°C (depending on type)

✅ All these materials must be accompanied by good joint sealing and a continuous vapor barrier to ensure their effectiveness.