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Description
Norval by Pietro Fiorentini is a direct-operated gas pressure regulator. Suitable for use with previously filtered gaseous fluids, it is mainly used for medium and low pressure natural gas distribution networks.
It is classified as Fail Open according to the European Standard EN 334.
Norval is Hydrogen Ready for NG-H2 blending
Features- Accuracy class: up to 5
- Available size DN: 1″, 1″ 1/2, 2″, 2″ 1/2, 3″, 4″, 6″, 8″
- Closing pressure class SG: up to 10
- Design pressure: up to 16 bar
- Design temperature: from -20° to +60° C
- Flanging: class 150 RF according to ASME B16.5 and PN 16 according to ISO 7005
- Outlet pressure range of Wd: from 8 to 4,400 mbar for DN up to to 4″, from 12 to 1,800 mbar for DN 6″ and 8″
- Range of inlet pressure bpu: from 0.1 to 19 bar for DN up to 3″, from 0.1 to 8 bar for DN 4″, 6″ and 8″
Specifications
Specifications
Brand
Hydrogen Compatibility %
Hydrogen Compatible up to 100% 
Hydrogen Compatible up to 30% 
Hydrogen Compatible up to 20% Accuracy Class
- Up to 5
Available Size DN
- 8" (200)
- 4" (100)
- 3" (80)
- 2-1/2" (65)
- 2" (50)
- 1-1/2" (40)
- 1" (25)
- 6" (150)
Closing Pressure Class SG
- Up to 10 %
Design Pressure
- Up to 19.6 bar
Design Temperature
- -20° to 60° C
Flanging
- Class 150 RF According to ANSI B16.5 and PN 16 According to ISO 7005
Outlet Pressure Range of Wd
- 6" to 8" DN from 12 to 1,800 mbar
- 1" to 4" DN from 8 to 4,400 mbar
Range of Inlet Pressure Bpu
- 0.1 to 19.6 bar for DN from 1" to 3"
- 0.1 to 8 bar for DN > 3"
