Control valve

Details Control valve Control valve

1987-06-04

1989-04-04

Michalsky, Gerald A.

Fluid handling

Systems

Sequentially closing and opening alternately seating flow...

1372361, 13759618, F15B 13042

Patent

active

048176699

ABSTRACT:
A two-position, three-way subsea non-interflow valve design comprises a plug assembly. An elongated member is positioned within the valve for relative movement with respect to the plug assembly. A first seal on the plug assembly remains closed until a second seal with the elongated member circumscribes the function port. Further movement of the elongated member opens the first seal to allow flow from the supply to the function port. Two seals are presented in the flow path of the supply port to eliminate interflow to any other valve opening.

REFERENCES:
patent: 4467833 (1984-08-01), Satterwhite et al.
patent: 4565349 (1986-01-01), Tomlin
patent: 4637419 (1987-01-01), Hughes

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