Flow Coupling
Flow couplings are used to protect the integrity of tubing from erosive turbulence. They are also used above and below a geometric restriction in the flow path, depending on the well conditions. API Recommended Practices 14B advises use of flow couplings above and below safety valves. Baker Hughes offers flow couplings in 4-ft. (1.22-m), 6-ft. (1.83-m), 8-ft. (2.45-m) and 10-ft. (3.05-m) lengths to suit the application.
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