English to Portuguese translations [PRO] Tech/Engineering - Petroleum Eng/Sci
English term or phrase:"tubing head"
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O contexto é o seguinte:
"7.On the Platform-Operator to check SITHP and ensure that SDV’s and master Valve’s Closed before the SCSSV’s closed to save the Tubing Head Pressure as the SCSSV will only open when the Pressure across the Valve is equal
8. On the Platform-Open SCSSV, monitor for Pressure change on the Tubing Head, Failure to open SCSSV by the existing Pressure will require equalisation using Gas lift gas or Pressurized water."
The translation workplace 
