District Heating PUR Pipe Section Insulation for Steam Line Service 120 C

District heating networks need insulation that survives heat, ground water and traffic load at the same time. This PUR pipe section insulation is moulded at fifty kilograms per cubic metre and banded to the pipe, so the shell stays tight while the line expands and contracts through the heating season.

The closed cell structure keeps water absorption below five percent by volume, which matters in buried ducts where the insulation can sit in contact with groundwater for decades. Conductivity of 0.023 W/(m.K) keeps heat loss per metre low, and the shell is dimensioned to fit standard DN sizes without gaps at the butt joints.

For steam service we confirm the actual operating temperature before quoting, because standard PUR suits continuous duty up to about 100 degrees and short excursions to 120. Where the line runs hotter, we recommend a PIR or mineral based solution instead, and we will say so rather than sell a shell that will fail early.

A district heating PUR pipe section is banded at 300 mm centres, and every district heating PUR pipe section is checked for roundness before dispatch. Where a district heating PUR pipe section meets a valve we supply a matching box section, and a district heating PUR pipe section ordered for a buried line receives an HDPE jacket. Each district heating PUR pipe section is packed with its joint sleeves.

Key Advantages

• Moulded shells at 50 kg/m3 keep shape under pipe movement
• Closed cell foam with water absorption below five percent
• Conductivity 0.023 W/(m.K) cuts heat loss per metre
• Sized to standard DN pipe diameters for tight butt joints
• Steel band fixing suits buried and above ground networks
• Temperature advice given honestly before quotation

Technical Specifications

Typical Applications

• District heating supply and return lines
• Steam and condensate pipework
• Buried pre-insulated pipe systems
• Plant room headers and manifolds
• Industrial process steam lines
• Municipal heat network retrofits

Frequently Asked Questions

MYREAL supplies PUR pipe section insulation for district heating from Shanghai to projects in Europe, the Middle East and Southeast Asia. Contact our technical team for datasheets, samples and container plans.