Patent ID: 6620314
Filing Date: 2003-09-16
Classification: B01D,C02F

Abstract:
A pyrogen controlled water producing unit for producing pyrogen controlled water on a small to medium factory scale comprising:(a) a transportable support frame; (b) a number of filter cartridges, each containing positively charged filter media, the cartridges being mounted to the frame and arranged in parallel, each filter cartridge having an inlet conduit from a common inlet supply and an outlet conduit to a common outlet; (c) a flow restrictor mounted in each filter cartridge inlet conduit to control the flow of water through the filter cartridge; (d) a flowmeter in the inlet supply for monitoring the flow of water to the filter cartridges; (e) the inlet supply having a nitrogen purge inlet port for purging the filter cartridges and the conduits; and (f) an outlet port from the common filter outlet at the lowest point in the unit.