Need help? Contact us at (800) 443-8817


Product Listing

Pyrex on Weldable 4-inch tube

Features
  • Weld neck, 4-inch O.D.
  • Pyrex® 7740 borosilicate optical glass
  • 4-inch diameter nominal viewing area
  • Type 304 stainless steel mounting
  • Viton® O-ring seal
  • Replaceable glass
Description
Economical visual quality viewport used on high vacuum chambers. Weldable configuration allows installation on a custom built stainless steel chamber. The replaceable viewport glass is captured between two elastomer O-rings. The viewport can be easily disassembled by removing four screws from the retainer ring.


Insulator Seal (ISI) brand catalog and custom engineered ceramic to metal seal products are manufactured to ISO 9001:2008 standard utilizing our qualified hermetic brazing and joining processes.

For any question on this Section Ask Our Experts



Drawings download if available are indicated by in the Part Number column. Click on this icon to view all downloads.
Literature downloads (including manuals), if available, is indicated by in the Part Number column. Click on this icon to view all available product literature and to download a PDF copy.

Catalog