Pipe swivel joint for corrosive fluids
Patent
·
OSTI ID:5919582
Apipipe swivel joint designed especially for handling very corrosive fluids, with an annular externally adjustable pressure plate that bears against the joint's packing, and a series of energizing screws to force the plate to compress the packing into a fluid-tight seal between the joint's outer and inner relatively rotatable elements. The screws extend through the radial wall of the joint's outer element rather than longitudinally through the inner element, thereby facilitating a reduction in the outside diameter of the inner element to provide a more compact joint of less overall radial dimension. The screws are threaded through corrosion resistant sleeves so that they will not seize the joint's outer element if corrosion should occur, and the sleeves are threaded into the outer element so that they can be easily replaced if necessary. (12 claims)
- Assignee:
- FMC Corp
- Patent Number(s):
- US 3679235
- OSTI ID:
- 5919582
- Country of Publication:
- United States
- Language:
- English
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