Pietro Fiorentini S.p.A.

PietroModel Aperflux 101 -Pilot Operated Pressure Regulators

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Aperflux 101 is pilot controlled pressure regulator for medium and high pressure. Aperflux is a `fail to open` regulator i.e. it opens in following conditions: failure of main diaphragm; failure of pilot diaphragm/s; failure of pilot seat valve; lack of feeding to the pilot loop. These regulators are siuitable for use with previously filtered, non corrosive gases.

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  • Technical data: Value
  • Accuracy class: up to 1
  • Available size DN: 2"-3"
  • Closing pressure class SG: up to 2,5
  • Design pressure: up to 85 bar
  • Design temperature: -10° +60° C (higher or lower temperatures on demand)
  • Flanging: ANSI 300/600 RF o RTJ according to ANSI B16.5
  • Maximum working differential pressure: 84,2
  • Minimum working differential pressure: 1 bar (reccomended >2 bar)
  • Outlet pressure range of Wd: 0.8-74 bar
  • Range of inlet pressure bpu: 1.8-85 bar