Strainer assembly for granular media filters

Details Strainer assembly for granular media filters Strainer assembly for granular media filters

1982-11-02

1984-10-09

Cintins, Ivars C.

Liquid purification or separation

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

Within flow line or flow line connected closed casing

210291, 210293, 239580, 239581, B01D 2320

Patent

active

044760205

ABSTRACT:
The strainer assembly comprises a body (1) which is to be mounted in the floor (14) of the filter and which has open upper and lower ends. A hollow open ended stem (3) has an external screw-thread (4) which engages with an internal screw-thread (2) in the body. The stem projects outwardly from the body below the lower end of the body and is axially adjustable relative to the body so that the effect of filter construction errors can be eliminated. A flexible tab (11) on the stem engages with ribs (10) on the body to prevent unintentional relative rotation of the stem and body. A strainer (8) is fitted to the upper end of the body and a flow control orifice (5) is provided in the stem. The area of the orifice is smaller than the total open area of the strainer.

REFERENCES:
patent: 1996545 (1935-04-01), Knowlton
patent: 3498462 (1970-03-01), Larrowe et al.

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