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You are here: Home - Products - Solar - Jain Solar Water Heating System - PUF Insulation

Jain Solar Water Heating System - PUF Insulation

The salient features of PUF insulation are as follows:

  • Rigid insulating material, minimum 90% closed cells.
  • Remains durable for years.
  • No thermal bridges.
  • High mechanical strength, maintains insulation effectively.
  • Compression strength → > 1kg/cm².
  • Water absorption → Upto 3% of foam volume.
  • Effective temperature range → -40° to 150°C.
  • Heat conductivity factor → <0.02kcal-m-hr-°C.

Jain Solar Water Heating Systems are insulated with selective grade CFC free PUF as insulation material. PUF insulated collector and tank ensure superior performance with minimum heat loss.

HDPE clad PUF insulated precast pipes are used for insulating the system piping and hot water distribution piping upto the end use points.

Comparisons of Properties of Different Cold Insulation Materials

Insulating Material
Density Thermal Conductivity
W/MK(10ºC)
Compressive Strength KPA Relative Moisture
Absorption
Expanded Polystyrene 15
15 0.040 35 Medium
Expanded Polystyrene 30
30 0.037 110 Medium
Extruded Polystyrene
32 0.27 300 Medium
Polyurethane Foam
36 0.018 200 Low
Phenolic Foam
32 0.027 170 Low
Cellular Foam
125 0.41 700 Low
Mineral Wool
24 0.045 Negligible Very High

 

Polyurethane Foam As a Insulating Material

Rigid insulation, minimum 90% closed cells, remains durable for years, no thermal bridges, high mechanical strength, maintains insulation effectively.

Pressure strength 0.5 to 6 kg/cm²
Water absorbency 0.5 to 3%of foam volume
Effective temperature range 40ºC to 180ºC
Heat conductivity factor 0.017 - 0.025kcal - M - HRºC

Results

As an overall conclusion, Rigid P.U. Foam emerges as a material with extremely effective thermal insulation qualities and high strength to weight ratio at low temperatures. These inherent physical characteristic enable it to perform extremely well with other alternatives products.

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