DRAIN CONNECTOR FOR SUBSTANCE PROCESSING RECEPTACLE

摘要

A selectively closeable drain connector includes a hollow plunger moveable relative to an aperture-defining drain flange. The connector includes two circumferential seals between the plunger and the flange, and includes at least one passage disposed between the seals leading to a hollow interior. The drain connector may be joined to a processing bag and/or tank to form a substance processing receptacle. A tubular port or a tubular plunger may be alternately used with a common drain flange.