Fluid handling – With repair – tapping – assembly – or disassembly means – With holding means functioning only during transportation...
Patent
1990-05-01
1991-06-04
Hepperle, Stephen M.
Fluid handling
With repair, tapping, assembly, or disassembly means
With holding means functioning only during transportation...
1374546, 13762531, 251118, F16K 2706
Patent
active
050205684
ABSTRACT:
In a fluid flow restrictor valve having a flow passageway between its ports opened and closed by superposed multiple orifice discs controlled by a yoke connected with one of the discs and having a yoke stem projecting outwardly of the valve body through a valve body bonnet. A sleeve cage nested by a valve body counterbore intersects the passageway and surrounds the yoke and discs. A second sleeve containing a fluid velocity reducing spider is joined to the downstream end of the sleeve cage. The valve bonnet, yoke, sleeve cage, discs and second sleeve form a unitized assembly easily removed from and reinserted into the valve body for repair or replacement of worn valve components without disconnecting the valve body from a flow line. The unitized assembly components are fail-safe indexed with each other, the valve body and valve control to insure a selected open, closed or partially open flow passageway through the valve.
REFERENCES:
patent: 2799467 (1957-07-01), Hedene
patent: 2891570 (1959-06-01), Krupp
patent: 3780758 (1973-12-01), De Vries
patent: 4331176 (1982-05-01), Parkison
patent: 4506860 (1985-03-01), von Schwerdtner et al.
patent: 4512548 (1985-04-01), Keller
patent: 4678002 (1987-07-01), Valley
Hepperle Stephen M.
Rhea Robert K.
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