Piston type cleaning valve

Details Piston type cleaning valve Piston type cleaning valve

1979-02-06

1981-02-10

Schwadron, Martin P.

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

Cleaning or steam sterilizing

251189, 251251, F16K 5100, F16K 2500, F16K 3144

Patent

active

042495610

ABSTRACT:
A valve, comprising a body which forms a cylindrical flow channel defined by side walls and having a fluid inlet provided at one end of the channel and an outlet provided in the side wall of the channel, and a closing device which comprises a piston connected to one end of a rod. The piston is provided with an upper flange facing the rod and a lower flange facing the inlet, which therebetween define a groove with at least two piston rings fitted therein. The piston rings are preferably in contact with each other. The rod may further comprise a push pipe and a pull rod extending through the push pipe, the upper flange being connected to the push pipe and the lower flange to the pull rod and the gap between the upper flange and piston rings being fitted with a sealing ring of a flexible material.

REFERENCES:
patent: 2023560 (1935-12-01), Wayer
patent: 2953154 (1960-09-01), Agoliati et al.
patent: 3586042 (1971-06-01), Grenier
patent: 3598364 (1971-08-01), Grenier
patent: 3658083 (1972-04-01), Fetterolf
patent: 3804365 (1974-04-01), Fetterolf

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