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Glass to Metal Seals

Glass to metal adaptors are used primarily to make an UHV connection directly to glass components and accessories,
or adapt a metal chamber to glass ancillary components.
They are offered in many connection configurations with or without flanges, CF type flanges for use below 1x10-11 Torr,
and in ISO type O-ring seal flanges for use in intermediate vacuum ranges.
Virtually all standard adapters are available in modified form to meet your special requirements.


GLASS – TO – KOVAR

Direct Seals: kovar several glasses (7040, 7052, 7056).
Graded seals: kovar to 7070, 7720, 7740 (Pyrex).
Temperature range: -270°C to 425°C.
Kovar may undergo a phase change below -80°C although kovar has a transformation point below -195°C.

 
GLASS – TO – COPPER

Not available at this moment.
Direct Seals: OFHC copper to any glass from 0080 to 7740 (pyrex).
Temperature range: -270°C, to temperature just below the softening point of the glass used.

Glass to Copper
   
GLASS – TO – STAINLESS STEEL

Direct Seals: Stainless Steel 304 to any glass from 0080 to 7740 (Pyrex)
Temperature range: -270°C to 450°C
Seals with other types of stainless steels are available on request
.

Glass to Stainless Steel
STAINLESS STEEL BELLOWS TO PYREX 7740
 

There are several standard options including PYREX glass on one end and standard cuff, heavy cuff or
flange at other end or PYREX glass on both ends. Standard bellows are available in two different flex lengths.
Bellows with special diameters, flex lengths, glass types, and flanges are available as custom order items.
 
Glass to Metal Seals - SST Bellows to Pyrex 7740

Stailess Steel to Quartz