Double multiple change-over valve, for controlling the operation

Details Double multiple change-over valve, for controlling the operation Double multiple change-over valve, for controlling the operation

1984-02-14

1986-03-25

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Combined

13759618, 13762568, 137885, 210 87, 210278, 210426, G01F 1500, B01D 2942

Patent

active

045774986

ABSTRACT:
A multiple change-over valve which can be set into various positions suite for the operation of a water treatment plant. A moulded synthetic resin body defines two valve units with seats for two movable assemblies controlled by cylinder-piston systems such as to assume two positions; each of the two movable assemblies comprises at one end a cavity with lateral apertures, and in an intermediate position longitudinal passages for cooperating with various passages, including transverse passages, between the two seats, and with passages for communication with the top and bottom of a resin column. A suction feeder for the regenerating solution, in the form of a venturi tube, is fixed between the water feed and the top of the column in order to operate when the column is connected to discharge.

REFERENCES:
patent: 2359802 (1944-10-01), Stephens
patent: 3398090 (1968-08-01), Bartell et al.
patent: 3880003 (1975-04-01), Jameson
patent: 3962089 (1976-06-01), Fulukawa
patent: 4235718 (1980-11-01), Lopez

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