Round safety Sight Glass disc
Our company produces high borosilicate glass and quartz glass, with a good appearance, high temperature, resistance strong pressure, acid and alkali, high transparency, good quality, After cutting, grinding, polishing, milling, Tempered and so on process to complete.
1.7, 2.0, 3.0, 3.3, 4.0, 5.0, 6.0, 8.0, 10.0, 12.0, 15.0, 20.0, 25.0 mm thickness, etc., the maximum size of 2000mm × 750mm, the minimum size of 20mm diameter
Resistance to bending strength
Not less than 1100Kgf/cm ²
Temperature resistance:
Long working temperature ≤ 450 ° C, short time working ≤ 500 ° C
Light transmission rate:
95% up
Hydraulic Water-resistant strength:
More than test 40Kgf/cm ²
Thermal stability:
T300 ° C
Linear expansion coefficient (0-300 ° C):
3.3 × 10-7 K-1
Softening temperature:
820° C
Audited Supplier 
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