Industrial cryogenic equipment supply filler 50-70 mesh perlite perlite

Perlite is a glassy volcanic lava from acidic broken through, preheating, firing expansion has a porous structure made of white, granular bulk material, having a small capacity, low thermal conductivity, chemical stability, non-flammable, non- toxic, tasteless, sound-absorbing characteristics. Perlite (ultra low temperature super-power engineering perlite) is selected by the selection of powder ore pellets through the vertical shaft kiln with natural gas as a heat source, thermal expansion of the obtained product, which enhanced the product is a silicone coating on the surface of expanded perlite to form a hydrophobic structure. Product color, density, size similar to an ordinary perlite. This product is mainly used for large ultra-low temperature thermal insulation construction projects, such as oxygen air separation unit, natural gas, liquid hydrogen, liquid nitrogen, liquid oxygen freeze travel and other transportation. The product has a good ultra-low temperature insulation properties. Perlite Technical Specifications No. Item Unit Performance SP-50 SP-60 type 1 type bulk density Kg / m 35 ~ 50 45 ~ 60 2 tap density Kg / m 45 ~ 60 55 ~ 70 3 size (weight% ratio) 1.2mm throughput% 1.2mm-0.154mm less than 90% 1.2mm-0.154mm by an amount not less than 90% 0.154mm% 0.154mm maximum of 10% 0.154mm maximum moisture content of 10% by mass 4 (wt% ratio )% ≤0.5 ≤0.5 ~ 1 5 repose angle (when the stack height 100mm) manually increase 033 ~ 376 during loading density pneumatic% ≤25% ≤35 7 thermal coefficient (atmospheric temperature at 77K --- 310K mean) w / (mk) 0.022 ~ 0.025 0.024 ~ 0.026 8 temperature ℃ -200 ~ 800 Note: The table bulk density, tap density maximum.