Valve arrangement for a pressurized water purifier

Details Valve arrangement for a pressurized water purifier Valve arrangement for a pressurized water purifier

1993-05-11

1995-03-28

Kim, Sun Uk

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Filter cleaning

210130, 210194, 21032169, 2104331, B01D 35147

Patent

active

054013950

ABSTRACT:
It is proposed, in accordance with the invention, that a pressurized water purifier which includes an inlet conduit, a pressure-elevating pump mounted in the inlet conduit, a filter or membrane type purifying unit, a purified-water outlet conduit and a reject conduit for concentrated contaminated water that the reject conduit (22) includes a pressure-limiting valve (28) which is controlled by the pressure in the outlet conduit (18). This will enable the water purifier to operate at a required, high internal working pressure, while enabling the pressure of the purified water to be maintained at a maximum level limited by the water conduit system and to be varied in response to the water taken from the system in the absence of pulsations.

REFERENCES:
patent: 2865442 (1958-12-01), Halford et al.
patent: 3389796 (1968-06-01), Fiala et al.
patent: 4026800 (1977-05-01), Friedrich et al.
patent: 4372859 (1983-02-01), Sugimoto et al.
patent: 4963253 (1990-10-01), Yen
patent: 4971689 (1990-11-01), Burrows

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