Reflux 819/FO
Description
Reflux 819/FO is a pilot-operated gas pressure regulator classified as Fail Open according to the European Standard EN 334.
Its use is strongly recommended in high-pressure transmission systems and in medium pressure natural gas distribution networks. It is suitable for use with previously filtered non-corrosive gases.
Reflux 819/FO is Hydrogen Ready for NG-H2 blending.
Features
- Accuracy class AC: up to 2.5% gauge
- Nominal sizes DN: 1″, 2″, 3″, 4″, 6″, 8″, 10″, 12″
- Lock-up pressure class SG: up to 5% gauge
- Design pressure: up to 1500 psig | up to 10.3 MPa
- Ambient temperature: from -40 °F to +150 °F | from -40 °C to +65 °C (higher or lower temperatures on demand)
- Connections: class 150, 300, 600 RF or RTJ according to ASME B16.5 and PN 16 according to ISO 7005
- Minimum differential pressure: 29 psig | 0.2 MPa
- Range of downstream pressure Wd: from 14.5 psig to 1073 psig | from 0.1 MPa to 7.4 MPa
- Inlet pressure range bpu:
- from 0.3 to 10.2 MPa (for CE marked product it is limited to 10.0 MPa)
- from 43.5 to 1480 psig (for CE marked product it is limited to 1450 psig)
