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    Hydrogen products
    Medium - low pressure hydrogen regulators

    Dival 507-512 H

    Description

    The Dival 507-512 H by Pietro Fiorentini are a lever-operated gas pressure regulators controlled by a diaphragm and contrasting regulated spring action. These devices are suitable for 100% hydrogen applications.

    They are used for medium and low pressure gas distribution networks, as well as commercial and industrial applications.

    According to the European Standard EN 334, they are classified as Fail Open.

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

    Features

    • Accuracy class AC: up to 10
    • Nominal sizes DN: 1″; 1″ 1/2
    • Lock-up pressure class SG: up to 20 (depending on version and set point)
    • Design pressure: up to 10 bar for BP, up to 20 bar for MP and TR
    • Design temperature: from -20 °C to +60 °C
    • Connections: threaded Rp EN 10226-1, NPT ASME B1.20.1
    • Minimum differential pressure: 0.1 bar
    • Range of downstream pressure Wd: from 15 to 110 mbar for BP, from 80 to 300 mbar for MP, from 300 to 3000 mbar for TR
    • Inlet pressure range: from (Pd + 0,1) bar to 10 bar from BP
      from (Pd + 0,1) bar to 20 bar for MP and TR

    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 […]