Throttling and shut-off valve for slurry pipelines and the like

Details Throttling and shut-off valve for slurry pipelines and the like Throttling and shut-off valve for slurry pipelines and the like

1984-09-11

1986-01-21

Michalsky, Gerald A.

Fluid handling

Larner-johnson type valves; i.e., telescoping internal valve...

251122, 251250, F16K 112

Patent

active

045652104

ABSTRACT:
A throttling and shut-off valve assembly for slurry pipelines and the like takes advantage of a gravity induced concentration and velocity gradient which develops in a substantially horizontal flow of coarse slurries. The throttling and shut-off valve assembly includes a conduit which is disposed substantially horizontally and wherein a valve body is mounted in an elongated streamlined housing to seat against a valve seat. The valve body is actuable to move substantially axially in the conduit. Both the valve body and the streamlined housing are disposed substantially along the longitudinal center line or axis of the conduit, which is upwardly offset relative to the longitudinal axis of the pipeline from which the flow is directed into the valve assembly. The bottom wall of the conduit is level with the bottom wall of the upstream portion of the pipeline. The valve body and the interior walls of the conduit form a channel upstream of the valve seat wherein larger space is available for flow of the slurry in the bottom of the conduit than in the top of the conduit.

REFERENCES:
patent: 1441784 (1923-01-01), Clayton
patent: 2240119 (1941-04-01), Montgomery et al.
patent: 2403751 (1946-07-01), Palmer
patent: 2507851 (1950-05-01), Bryant et al.
patent: 2882967 (1959-04-01), Surino
patent: 4231389 (1980-11-01), Still et al.
patent: 4275763 (1981-06-01), Fahrig
patent: 4413646 (1983-11-01), Platt et al.
patent: 4506865 (1985-03-01), Bragin et al.

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