Ultra-low temperature insulation material

ISO9001 quality management system, the expanded perlite (pearlite sand) produced for ultra-low temperature insulation to the greatest extent meets the special requirements of ultra-low temperature equipment such as air separation plants, cryogenic liquid storage tanks (LNG, LPG, liquid oxygen, liquid nitrogen, ethylene). Requirements.

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Low temperature adiabatic

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ISO9001 quality management system, the expanded perlite (pearlite sand) produced for ultra-low temperature insulation to the greatest extent meets the special requirements of ultra-low temperature equipment such as air separation plants, cryogenic liquid storage tanks (LNG, LPG, liquid oxygen, liquid nitrogen, ethylene). Requirements.

1.Technical parameters of expanded perlite for ultra-low temperature thermal insulation:

Bulk Density		Kg/m3	35 ~ 55	40 ~ 60
Compact Density Compact Density		Kg/m3	48 ~ 65	50 ~ 70
Moisture		Wt %	≤0.3	≤0.1
Therm. Conductivity(atmospheric pressure, 77~293k)		w/m.k	≤0.022	≤0.022
Granularity level matching	Particle size in mm	mesh	Sifter Remainder Amount wt%
	~1.18	~16	0 - 10	0 - 10
	1.18~0.15	16~30	70 - 95	80 - 95
	0.15~	100~	5 - 20	5 - 10

2. Service content:

- Repair and maintenance works of expanded perlite (pearl sand) for thermal insulation of ultra-low temperature devices (sand filling service);
- Filling service system of expanded perlite for vacuum insulation of small cryogenic liquid storage tanks (vacuum bulk material, tank truck transportation, automatic filling system);
- On-line supplementary filling project of expanded perlite for thermal insulation of large and medium-sized cryogenic liquid storage tanks (LNG, ethylene).