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Reflux 819 Pressure Regulator
Brand: Pietro Fiorentini S.p.A.Reflux 819 is a pilot-operated gas pressure regulator. It is particularly suitable for high-pressure transmission systems and for medium pressure natural gas distribution networks, and it can be used with previously filtered non-corrosive gases.
Reflux 819 is classified as Fail Close according to the European Standard EN 334.
Reflux 819 is Hydrogen Ready for NG-H2 blending.
Features- Accuracy class: up to 1
- Available size DN: 1″, 2″, 3″, 4″, 6″, 8″, 10″, 12″
- Closing pressure class SG: up to 2.5
- Design pressure: up to 100 bar
- Design temperature: from -10° to +60° C (higher or lower temperatures on demand)
- Flanging: class 150, 300, 600 RF or RTJ according to ASME B16.5 and PN 16 according to ISO 7005
- Minimum working differential pressure: 450 mbar
- Outlet pressure range of Wd: from 0.3 to 74 bar
- Range of inlet pressure bpu: from 0.5 to 100 bar
Specifications
Brand
Accuracy Class
- Up to 1 %
Available Size DN
- 12”
- 8”
- 6”
- 4”
- 3”
- 2”
- 1”
- 10”
Closing Pressure Class SG
- 5 % to 1 % Depending on Outlet Pressure
Design Pressure
- Maximum 1,450 psig
Design Temperature
- 10° to 60° C (14° to 140° F)
Flanging
- 150-300-600 RF or RTJ According to ANSI B16.5 and PN 16 According to ISO 7005
Maximum Working Differential Pressure
- 99.7 psig
Minimum Working Differential Pressure
- 7.25 psig
Outlet Pressure Range of Wd
- 5 to 1073 psig
Range of Inlet Pressure Bpu
- 11.6 to 1450 psig