DuraTherm™ Protec™ PIR Industrial Insulation System


Petrochemical, Chemical, and Pharmaceutical plants are increasingly focused on design and management of their lower-temperature and cryogenic processes, not only to reduce energy loss but to improve process efficiencies... and in the case of chemical and pharmaceutical industries, to enable more selective and specialized chemical reactions at very low temperatures. At these low and cryogenic temperatures the selection of the pipe and equipment Insulation and the design of the insulation system becomes Mission Critical. Defex considers the paramount role of the insulation in these efforts since it has a material impact not only on life-cycle cost (material/labor capital cost plus long-term operation/maintenance costs) but also on life-cycle-performance and risk.

DuraTherm™Protec™ PIR Industrial Insulation System is a thermoset plastic produced as a foam and used as rigid thermal insulation. The starting materials are similar to those used in polyurethane (PUR) except that the proportion of methylene diphenyl diisocyanate (MDI) is higher and a special polyester-derived polyol is used in the reaction instead of a polyether polyol. The resulting chemical structure is significantly different, with the isocyanate groups on the MDI trimerising to form isocyanurate groups which the polyols link together, giving a complex polymeric structure.

DuraTherm™ Protec™ PIR Industrial Insulation System is manufactured in form of Bunstock, Boards, Preformed Pipe Insulation & custom fittings suitable for pipework, vessels & equipment operating at dual, low & cryogenic temperatures for

1) Condensation Control
2) Process Control & improve efficiency
3) Personnel Protection
4) Thermo-acoustic Applications


DuraTherm™ Protec™ PIR Industrial Insulation System is manufactured in standard densities of 32, 40, 48, 64 & 96 Kgs/ Cu.M. in conformance to ASTM C 591 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation. Wind/bioenergy

Product Features:

  • Superior Thermal Conductivity among all insulation
    materials
  • Excellent Fire Performance
  • Excellent Moisture Resistance
  • High Flexural Strength
  • Dimensionally Stable
  • Chemically Resistant
  • Light Weight
  • Low Life-Cycle Costs
  • Environmentally Friendly (Zero ODP)
  • Long Service Life
  • Superior to Polystyrene, Elastomeric Rubber,
    Phenolic Foam, Fibrous Insulation


Some Applications:

  • Chilled Water & Brine / Other Systems
  • Cryogenic Processes like LNG, Liquid Oxygen
  • Vessels and Equipment in Petrochemical,
    Chemical, Pharmaceutical etc Low temperature processes
  • Transportation & Marine



DuraTherm™ Protec™ PIR Industrial Insulation System Product Data Sheets, MSDS & Installation procedures can be downloaded from Client Lounge.

Draft Specifications can be downloaded from Client Lounge Ancillary materials shall be available for sale soon through our channel partners and will be offered upon request.

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