Tempered Soda Lime Sight Glass

Manufactured in Soda Lime Glass, these sight glasses are used in several applications where the cost-reduction is important, and the glass will not be in contact with food, drugs, chemicals, or temperatures above 572°F.

Description

Manufactured in Soda Lime Glass, these sight glasses are used in several applications where the cost-reduction is important, and the glass will not be in contact with food, drugs, chemicals, or temperatures above 572°F.

Special dimensions of glasses are available upon request, where the minimum diameter is 0.39”, and the maximum diameter is 12.78”. The thickness can be manufactured to a minimum of 0.12” and a maximum of 0.98”. Do not hesitate to contact us for recommendations as to which sight glass fits your application the best.


MANUFACTURED IN ACCORDANCE TO DIN 8902

In order to achieve the standardization of this type of type of sigh glasses in all the different industries, the German regulatory institute, DIN for its acronym in German, designed standard parameters for the manufacture of this type of glass.

The main issues this norm regulates is the pressure resistance in terms of the total diameter of the glass, the observable diameter of the glass, and the glass thickness. It also dictates permissible imperfections in the glass, chemical attack, markings, and dimensional tolerances.

PHYSICAL PROPERTY TESTING METHOD VALUE OBTAINED
THERMAL EXPANSION COEFFICIENT ISO 7991 8.72 X 10-6ºK
DENSITY AT 25ºC SN 7005 13 2.49 g/cm3
REFRACTIVE INDEX (λ = 587.6nm)nd 1.52
TRANSFORMATION TEMPERATURE ISO 7884-8 1040ºK
HIGHEST SHROT-TERM WORKING RANGE ISO 7884-7 302ºK
THERMAL SHOCK RESISTANCE ISO 7884 70 K
YOUNGS MODULUS 63.150 MPa
POISSON CONSTANT 0.20
THERMAL CONDUCTIVITY 20ºC – 100ºC λ (1.2)(W·m-1)(K-1)
PHOTOELASTIC CONSTANT DIN 52314 (4.00 x 10-6)(mm2/N)
SPECIFIC ELECTRIC RESISTANCE DIN 52326 250ºC