Wound membrane filter module e.g., for filtration of biological fluids and gases, has a short length filter path and grouped connections

摘要

Spiral filter medium is sandwiched between spacer sheets, with that forming the feed cross flow channel (39) being sealed to the end face (11) of the wound module (2), but open at the opposite face (13); the spacer sheet forming the permeate / filtrate channel (37) is sealed to the end face (13). The permeate flow (38,22) and feed flow (20) are both axial.