Cryogenic Insulation
The unique insulating role of expanded Perlite is characterized by a combination of its low thermal conductivity, excellent thermal properties and light weight. This has enabled expanded Perlite to become an accepted material for the insulation of vessels and pipe work involved with -
1. liquefied gas storage vessels – ammonia, nitrogen, etc
2. gas tankers including LNG tankers
3. cold boxes in oxygen production / air separation units
The cryogenic classification of the insulation being based on the fact that the storage vessels are maintained at -100ºC and below.
Blue Pacific Minerals perlite has been independently tested for its thermal conductivity. The expanded perlite sample, that had been expanded by a mobile perlite expansion operation in Australia, was tested by BRANZ (NZ). The results were conducted at 0˚C and the conductivity result was 0.0381 W/mK with a compacted density of 53.92kg/m3. This confirms the suitability of Blue Pacific Minerals Perlite for cryogenic applications.
The raw perlite ore Blue Pacific Minerals offers comes in a range of grades. A grade can also be custom manufactured to meet specific client requirements. With its ‘youthfulness’ compared to other Perlite sources in the world Blue Pacific Minerals Perlite tends to have a lower expansion temperature requirement driving down per unit costs for the expanded ore. The lower expansion temperature combined with greater expansion ratios makes the Perlite ore highly prized amongst expander operations. This is especially the case for remotely located mobile- portable expansion plant operations.
Blue Pacific Minerals has supplied cryogenic perlite ore to remote expansion operations in Australia, South East Asia and the Middle East. These sites value the reliability and repeatability of the perlite ore Blue Pacific Minerals offers.