Gas lift valve remanufacturing process and apparatus produced thereby
AssigneeTRC Services, Inc.
InventorsRussell L. Ritchie, Stanley Wayne Sweet, Dustin Wayne Lott, Gustavo Pertuz
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AssigneeTRC Services, Inc.
InventorsRussell L. Ritchie, Stanley Wayne Sweet, Dustin Wayne Lott, Gustavo Pertuz
Estimating the term…
Used gas lift valves having a used bellows assembly are remanufactured. Separable components are disassembled, and the used bellows assembly is removed from a dome housing by de-brazing the used bellows at a brazed joint from a mating surface of the dome housing. A replacement bellows is then affixed (e.g., arc welded) to the dome housing's mating surface, and a bellows adapter is affixed (e.g., arc welded) to the replacement bellows. The separable components of the used valve are then reassembled to produce a remanufactured gas lift valve. The remanufactured valve has a replacement bellows composed of a nickel-chromium alloy as opposed to a nickel-copper alloy, has the replacement bellows arc-welded to the dome housing as opposed to being brazed thereto, and has the adapter arc-welded to the bellows as opposed to being brazed thereto.
A remanufactured gas lift valve being remanufactured from a used gas lift valve by a method comprising the steps of:
A replacement assembly for remanufacture of a used gas lift valve, the used gas lift valve having a used housing, a used bellows, and a used bellows adapter, the replacement assembly comprising:
A remanufacturable gas lift valve, comprising:
A remanufacturable gas lift valve, comprising:
Dependencies are inferred from the claim text.