REFLEX Level Gauge Glass (DIN 7081)

Manufactured in borosilicate glass, it is used in numerous applications where both chemical resistance and low thermal expansion coefficient are required.

Description

Manufactured in borosilicate glass, it is used in numerous applications where both chemical resistance and low thermal expansion coefficient are required.

Because the glass has reflection prisms, the light spectrum is reflected in such a way that where there is liquid it is completely opaque and where there is no liquid it is bright. These are mainly used in the petrochemical industry, refineries and general applications.

Type of Glass PSI °F
Non-corrosive fluid at room temperature, without steam, without chemical attack on the glass; in direct contact with the glass 4000 86
Non-corrosive fluid at room temperature, without steam, without chemical attack on the glass; in direct contact with the protective mica (only for flat sight glasses) NA NA
Hot fluid or saturated vapor in direct contact with the glass 500 482
Hot fluid or saturated vapor in direct contact with the protective mica (only for flat sight glasses) NA NA
Radio
r
Width
b
Length
l
Number 2 3 4 5 6 7 8 9 10 11
1.18” 0.59” 5.51” 6.50” 7.48” 8.66” 9.84” 11.02” 12.60” 13.39”
1.34” 0.67” 5-1/2” 6-1/2” 7-1/2” 8-5/8” 9-7/8” 11” 12-5/8” 13-3/8” 14.57” 15.75”
Chemical properties Hydrolytic resistance HGB 1 (ISO 719)
Acid resistance Class S1 (ISO 1776)
Alkaline resistance Class A2 (ISO 695)
Chemical composition SiO2 Minimum 80% content
B2O3 Minimum 13% content
Na2O + K2O Minimum 4,5% content