Glass to Metal Seals Tubular glass-metal seals of the Kovar-Pyrex type are produced in a range of sizes from 1/8" to 6". The glass to metal seal is a matched seal in which kodial glass is sealed directly to an iron-nickel-cobalt alloy (Kovar) tube having a similar coefficient of expansion, a graded seal then being fabricated to Pyrex glass.
Extended seals are also produced with a quartz termination and non-standard diameters are available by forming the 'Kovar' sleeve from sheet material. Seals can also be supplied, welded into vacuum flanges.
Moores (EVIC) Glassworks Ltd Evic Works - 143 Hersham Road - Walton on Thames - KT12 1RR Telephone: (+44) 01932 222314 - Fax: (+44) 01932 243330 - E-mail: sales@moores-glass.co.uk

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