Restrictor valve flow passage pop-up wear indicator

Details Restrictor valve flow passage pop-up wear indicator Restrictor valve flow passage pop-up wear indicator

Filed on

1989-01-12

Date issued

1989-10-17

Examiner

Rivell, John

Patent Class

Fluid handling

SubClass

With leakage or drip collecting

Other Related Categories

137557, 251118, 73 405R, 116272, G01M 328

Type

Patent

Status

active

Patent number

048740071

Description

ABSTRACT:
In a fluid restrictor valve interposed in a high pressure fluid flow line having a fluid passageway disposed downstream from throttling discs and having a sleeve-like turbulence diffuser nested by the wall forming the fluid outlet passageway, a turbulence diffuser worn out indicator is disposed within a valve wall bore communicating with the periphery of the turbulence diffuser. The indicator includes a piston and rod longitudinally slidable in bores formed in the indicator body. Fluid under pressure against the piston forces the piston rod laterally outward with respect to the wall of the valve for visually indicating a worn out fluid turbulence diffuser.

REFERENCES:
patent: 1511516 (1924-10-01), Goodfellow
patent: 2263840 (1941-11-01), Franck
patent: 2583835 (1952-01-01), Grassenbach
patent: 3691981 (1972-09-01), Rao
patent: 3952691 (1976-04-01), Peltz et al.
patent: 4136709 (1979-01-01), Rogers et al.
patent: 4461316 (1984-07-01), Cove et al.
patent: 4596377 (1986-06-01), Taylor
patent: 4735229 (1988-04-01), Lancaster

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