Global Ocean Design

Purge Port for Glass Spheres (5mm shank retrofit) (G-102)

This design directly replaces all previous versions of both Vitrovex® and Benthos® sphere vacuum fittings, providing a robust design with our unique check-valve feature.

Designed for applications using an existing glass sphere housing of 10-20” OD of any wall thickness up to 23mm from either Benthos or Vitrovex. The purge bodies are made from corrosion resistant and ultra-strong Titanium 6-4 (Grade 5). The threaded shank will retrofit directly into an existing 5mm or #10 CLR hole in a Benthos® of Vitrovex® glass sphere. It’s a little taller than the original, but if you have the room, these have all the helpful features of a Global Ocean Design self-sealing purge port. “Self-sealing” refers to sea level pressure. They still require the placement of the pressure proof cap before deployment, so as a helpful reminder we laser engraved the words “Replace Cap” on the top.

All units are laser engraved with a unique serial number, are individually tested to 18,000psi.

The G-102 requires a clearance 5mm or #10 CLR hole and spotface normally found in either Benthos of Vitrovex glass instrument housings. The G-102 is shipped with mounting hardware and a complete set of spare o-rings.

Click here for the G-102 Installation Drawing.

We do customs as well.

Contact Ocean Innovations at (858) 454-4044 or

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(858) 454-4044


7416 Cabrillo Avenue, La Jolla, CA  92037, United States