Product Catalog / DISS Fittings

DISS Fittings

Diameter Index Safety System

The Compressed Gas Association (CGA) developed the Diameter-Index Safety system (DISS) to establish a standard for non-interchangeable, removable connections for use with Medical Gases, Instrument Air, Vacuum (Suction), and WAGD (Waste Anesthetic Gas Disposal). Non-interchangeable indexing is achieved by a series of increasing and decreasing diameters in the components of the connections. These specific diameters act in key-like fashion, so that fittings within the gas service "family" will connect only with their own "family members." In place of diameter indexing, Oxygen (DISS 1240) has been assigned the long established 9/16"-18 thread connections as its safety standards.

What makes our DISS fittings unique?

Bay Corporation takes great care to design, engineer and manufacture these fittings to exacting tolerances. Then our fittings receive our special three-step plating process. The results produce a superior quality DISS fitting, one that you would be proud to install at your hospital or on your medical equipment. Look below to find a sampling of our DISS product line as well as details on the Diameter-Index Safety System (DISS).

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