Owned by: Accu-Glass Products, Inc.
(661) 607-0250 Store Hours: Monday-Thursday 7:00am-4:30pm

Closed End “Domed” Adaptors

Stainless Steel Adaptor Show Products
Closed End "Domed" Stainless Steel-to-7740 PYREX® Adapters

Closed End “Domed” Adaptors

Kovar to 7052 Glass Adaptor

Closed end Glass adapters are available with two seal types; Kovar® or stainless steel and can be sealed to 7052, PYREX® and quartz. The Kovar® seal has superior strength and is magnetic. Stainless steel is a strong reliable nonmagnetic seal.  Larson Electronic Glass’s closed end or domed glass to metal seals are available in three glasses:

  • Kovar to 7052 Glass
  • Stainless Steel to 7740 PYREX®


  • 10 Standard sizes ½” thru 6”
  • Choice of standard length (L1) or long length (L2)
  • Custom sizes available
  •  Tube or choice of flanges at one end
  • CF type flanges, Kwik-Flange®, Large-Flange®, or custom flanges
  • CF type flange repeat bakeout cycles to 450°C
  • CF type flange vacuum range to below 10x-11 Torr
  • ISO flange intermittent bakeout cycles to 200°C
  • ISO flange vacuum range to 10x-9 Torr

Request a quote today on domed glass to metal seals for your application, or contact Larson Electronic Glass to learn more.