Long and Circular Design Guage Glass

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The quality of a sight (gauge) glass depends mainly on the chemical composition and mechanical strength of the glass material. Analyses and acid/alkali tests are constantly ensuring a high glass-quality. The mechanical strength is reached by thermal prestressing. Borosilicate glass, thermally prestressed, optically tested, properties as defined in DIN and OENORM standards. Extract from this standard: For safety reasons soda-lime based glasses may not be used

▪ Oil refineries

▪ Petro-chemical plants

▪ Pharmaceutical manufacture

▪ Chemical processing

▪ Mechanical engineering, especially manufacture of boilers and storage vessels

▪ Food and beverages industry

▪ Water engineering

▪ Pulp and paper industry

▪ Textile industry

▪ Marine engineering

▪ Water engineering

The gauge glass is the most important component of the liquid level gauge. Due to this reason DGW gauge glasses are made of high quality, extra-hard borosilicate glass which is subsequently heat-treated.DGW gauge glasses have high mechanical strength and are especially resistant to alkalis, acids and boiler water (within the service limitation).