Aperflux 101


Aperflux 101 is a piloted-operated pressure regulator.

Particularly suitable for high-pressure transmission systems and for medium pressure natural gas distribution networks, it can be used with previously filtered non-corrosive gases.

It is classified as Fail Open according to the European Standard EN 334.


  • Accuracy class AC: up to 2.5
  • Nominal sizes DN: 2″, 3″, 4″
  • Lock-up pressure class SG: up to 10
  • Design pressure: up to 85 bar
  • Design temperature: from -20 °C to +60 °C (higher or lower temperatures on demand)
  • Connections: class 300 and 600 RF or RTJ according to ASME B16.5
  • Minimum differential pressure: 1 bar, recommended > 2 bar
  • Range of downstream pressure Wd: from 0.8 to 74 bar
  • Inlet pressure range bpu: from 1.8 to 85 bar
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