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    Gas products
    Medium - low pressure gas regulators
    Direct operated

    Cirval

    Description

    The Cirval is a lever-operated gas pressure regulator controlled by a diaphragm and setting spring which controls the valve.

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

    It should to be used with previously filtered non-corrosive gases.

    According to the European Standard EN 334, it is classified as Fail Open.

    The Cirval is Hydrogen Ready for NG-H2 blending.

    This product is available on selected markets only. For further details, please contact your closest Pietro Fiorentini representative.

    Features

    • Accuracy class AC: up to 10
    • Nominal sizes DN: 3/4″, 1″ 1/2
    • Lock-up pressure class SG: up to 20
    • Design pressure: up to 8.6 bar
    • Design temperature: from -20 °C to +60 °C
    • Connections: 1″ 1/4, 1″ 1/2, 2″ according to ANSi B1.20.1 and 2″ S.125FF according to ANSI B15.5
    • Minimum differential pressure: 0.12 bar
    • Range of downstream pressure Wd: from 0.017 to 0.82 bar
    • Inlet pressure range bpu: from 0.13 to 5 bar

    Do you still have questions?

    Flyer

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    Technical Manual

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    Instruction

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    Poster

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    Technical brochure

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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 […]