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    Hydrogen products
    Medium - low pressure hydrogen regulators

    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″

    Do you still have questions?

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    29Jul

    ISO 50001: Rosate and Desenzano del Garda plants are certified, and Arcugnano is confirmed

    A new important result for Pietro Fiorentini: we have confirmed the ISO 50001:2018 certification for the headquarters in Arcugnano (Vicenza, Italy) and we have obtained it also for the plants of Rosate (Milan, Italy) and Desenzano del Garda (Brescia, Italy). This standard specifies the requirements for an energy management system to enable companies to achieve continual improvement of energy performance. Thanks to our […]