MAXOS®
安全视窗，液位计玻璃
Aluminosilicate glass is typically used wherever pressure loads occur at temperatures above 300 °C. The aluminosilicate glass from German production is characterized by a particularly high temperature resistance of up to 375 °C. It is mandatory to protect the inner side of the glass (i.e. side facing steam or liquid) with mica shield to avoid fast chemical attack.
| Technical properties | ||
|---|---|---|
| Expansion coefficient α 20 °C / 300 °C | 4.8 x 10–6 K–1 | |
| Max. operating temperature | 375 °C | 707 °F |
| Thermal shock resistance as per ISO 718 | ΔT 230 °C | |
| Max. operating pressure | 225 bar | 3,263 psi |
| Surface pressure prestressing | ≥ 90 N/mm² | ≥ 13,000 psi |
| Chemical properties | ||
|---|---|---|
| Water resistance | ISO 719 | Class 1 |
| Acid resistance | ISO 12116 | Class 3 |
| Alkali solution resistance | ISO 695 | Class 3 |
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