CF and Wire Seal Flanges & Fittings
ISO (QF/LF, KF, NW/ISO-K) Flanges & Fittings
Glass Components & Chamber Accessories
Custom Fabrication and Chambers
The ASA/ANSI elastomer sealed flange system uses bolt kits to fasten two flanges and Viton® elastomer o-rings to create a seal. In addition to the standard fasteners and seals, adaptive bushings are available to reduce ASA/ANSI bolt holes from 3/4" to 3/8". Adaptive bushings are commonly used to connect an ASA/ANSI flange (sizes 200, 300, or 400) to a gate valve with a matching flange.