ASA/ANSI (150) Flanges & Fittings

A&N’s ASA/ANSI flanges and fittings are manufactured for compatibility with 150 lbs. ASA flanges and 150 ANSI flanges. The ASA/ANSI flange specification was originally created for use with steam pipes. Now adapted for vacuum use the system utilizes an elastomer seal and is capable of achieving high vacuum pressure levels.

ASA/ANSI flanges provide a complete range of fittings to mount with tubing sized from 1 inch up to 12 inches in diameter. The flange system consists of two flanges, a sealing ring and bolt fasteners to compress the seal between the two flanges. A pair of ASA/ANSI flanges must have one grooved flange to accept the sealing ring and one smooth face flange onto which the seal will be made. To ease system assembly rotatable flanges are available for bolt hole alignment.

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