Pneumoidraulica EngineeringPneumoidraulica Engineering

Overpressure protection

  • protezione sovrappressione 1
  • protezione sovrappressione 2
  • protezione sovrappressione 3

PNEUMOIDRAULICA ENGINEERING designs and manufactures many kinds of overpressure protection
systems for Oil & Gas (Production, storage plants, refineries, etc.). Those systems detect the pressure of the process line and, through the pneumatic / hydraulic pressure pilots, intervene in case of pressure increase or decrease over the calibration thresholds. The intervention, depending on the case, can activate the stop of the process or act on a regulation valve to carry the pressure to the correct value. The typical applicatiion is the control of the on-off valves on HIPPS systems. It is also available a special version developed for surge relief valve control. 

Standard features:

  • Components layout carefully studied to facilitate the control, checking and maintenance operations
  • Execution in AISI316 stainless steel (even varnished)
  • Arrangement in cabinet IP55
  • Max. pressure 420 bar (6,000 PSI)
  • Double ferrule compression fittings
  • Imperial or Inch Tubing (according to ASTM A-269)
  • Safety components in SIL2 grade according to IEC 61508:2010
  • Nameplates and documentation in Italian or English
  • Certification according to PED / ASME / ATEX / IECEx

Special features:

  • Installation in severe climate conditions (very low/very high temperatures, desert zones, etc.)
  • Cabinet IP65
  • Applications in presence of H2S (NACE MR01-75)
  • Nameplates and documentation in different languages (Russian, Arabic, etc.)
  • Executions according to Norsok / UL or other international Standards
  • Testing Officiated and Certification on customer request
  • Safety components in SIL3 grade according to IEC 61508:2010
  • ≤ 3 seconds operation tme (for HIPPS systems and surge relief valve)