Less expensive insulation solutions for straight sections of pipelines use shells of polystyrene foam.
Depending on the production technology, polystyrene foam can be divided into 2 types: pressed and extruded.
When choosing foam polystyrene as thermal insulation one should consider that it is cheaper, but not as strong as polyurethane foam.
Temperature range of use expanded polystyrene -50 to +70°C.
PS foam shells are available in various lengths for pipes with diameters from 32 to 1420 mm.