B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 63/10 (2006.01) B01D 67/00 (2006.01)
Patent
CA 2643548
A novel positive traction permeate tube and fittings therefore are described for use in spirally wound membrane filtration elements for filtration and separation applications. Membrane filtration elements incorporate the novel permeate tube. Methods of making the novel positive traction permeate tube are also disclosed as are the preferred sanitary stainless steel materials used for the sanitary tube and fittings. The novel permeate tube involves a sanitary tubing having two open ends, each with an end fitting. The end fittings engage a positive traction drive for high tension spiral winding of a membrane element spirally around the novel permeate tube. Membrane filtration elements made with the novel permeate tube are less subject to slippage and breakage during manufacture and can withstand higher pressure drops and flow rates during use without failure of the spiral wound membrane element. The positive traction permeate tube facilitates membrane replacements.
Battison Williams Dupuis
Cott Technologies Inc.
LandOfFree
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