Semipermeable membrane cartridge and method of making

摘要: Cartridges for use in ultrafiltration or reverse osmosis separation devices are formed by injection molding a generally tubular, smooth, seamless shell about spirally-wrapped semipermeable membrane assembly. These cartridges can be used within traditional having pressure vessels of precise interior diameter, which the uniquely suited because they have cylindrical surfaces true circular cross-section and close tolerances. The also created so as to incorporate integral thus permit their processes without need surrounding supporting vessels. A reaction process is shown provides substantial efficiencies overall manufacturing spirally-wound variety.