5/2-Way commutating valve, particularly for reverse-flush filter

Details 5/2-Way commutating valve, particularly for reverse-flush filter 5/2-Way commutating valve, particularly for reverse-flush filter

1985-06-04

1987-12-22

Fisher, Richard V.

Liquid purification or separation

Particulate material type separator, e.g., ion exchange or...

With rehabilitation means

13762527, 13762566, 210279, 210425, B01D 2324

Patent

active

047145510

ABSTRACT:
A 5/2-way commutating valve, particularly for reverse-flush filters in water treatment plants, consists of a tubular housing with five radial pipe connections (6, 9, 10, 11, 12), between which a valve seat (24 to 27) is present in each case. Preferably spherical valve elements (28 to 30) are arranged on a central rod (23) stressed in one direction by a spring arrangement (32), a double-sided value element (29) cooperating with the two central valve seats (25, 26) being slidable longitudinally relative to the central rod (23). The housing is composed of a plurality of mutually rotatable housing parts (16 to 20) each exhibiting a pipe connection. A flow throttle (51, 23) installed between the spigots (9 and 12) in the housing serves to adjust the flow velocity during reverse flushing. A compressed air piston, which is connectable to the compressor of a ozone generator, may be provided to actuate the central rod (23) counter to the spring arrangement (32).

REFERENCES:
patent: 582441 (1897-05-01), Stifel
patent: 3247967 (1966-04-01), Kucmerosky
patent: 3530897 (1968-10-01), Buchanan
patent: 3762443 (1973-10-01), Sorenson
patent: 4043913 (1977-08-01), Hintermeister
patent: 4491154 (1985-01-01), Peters

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