Norval H

Description

The Norval H by Pietro Fiorentini is a direct-operated gas pressure regulator. This device is suitable for 100% hydrogen applications.

It is used in medium and low-pressure gas distribution networks.

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

Click here to see the product page in the NG version / NG-H2 blending (up to 20%) version.

Features

  • Accuracy class AC: up to 5 (depending on working conditions)
  • Nominal sizes DN: 1″, 1″ 1/2, 2″, 2″ 1/2, 3″, 4″, 6″, 8″
  • Lock-up pressure class SG: up to 10 (depending on working conditions)
  • Design pressure: up to 18.9 bar
  • Design temperature: from -20 °C to +60 °C
  • Connections: class 150 RF according to ASME B16.5 and PN 16 according to ISO 7005
  • Range of downstream pressure Wd: from 0.008 to 4.4 bar for DN up to to 4″, from 0.012 to 1.8 bar for DN 6″ and 8″
  • Inlet pressure range bpu: from 0.1 to 18.9 bar for DN up to 3″, from 0.1 to 8 bar for DN 4″, 6″ and 8″

Configurations

The configuration options can be compounded and aggregated differently. Please refer to the technical manual for all available combinations.
Silencer
Slam shut
Monitor
Upside down

Documentation

Flyer

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