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    EMERSON Product|English

    V/31-2-E Series Pneumatic Switch Tartarini?

    V/31-2-E Series Pneumatic Switch Tartarini?

    The V/31-2-AP-E pneumatic switch series are installed in the pressure reducing stations equipped with pilot operated regulators for splitting the natural gas flow rate among the multiple streams. It uses only the pneumatic force provided by the natural gas, without requiring electric power.

    Available configurations

    V/31-2-E, V/31-2-AP-E and V/31-2-AP-EM: Pneumatic switches with adjustable set-point
    V/31-2-AP-EF and V/31-2-AP-EMF: Pneumatic switches with fixed set-point

    Maximum Allowable Pressure

    V/31-2-E: 19 bar / 275.5 psig
    V/31-2-AP-E, V/31-2-AP-EM, V/31-2-AP-EF and V/31-2-AP-EMF: 100 bar / 1450 psig

    End Connections

    1/4 NPT female threaded connections

    Temperature Capabilities

    Standard Version Working: -10° to 60°C / 14° to 140°F 
    Low Temperature Version Working: -20° to 60°C / -4° to 140°F

    Station increased total flow rate

    Uses only the pneumatic force provided by the natural gas, without requiring electric power

    Reduced station noise level, due to lower flow-rate through each stream

    Easy retrofit in the existing station

    Does not impact the safety system of the station. The V/31-2-AP-E pneumatic switch series, has a fail close reaction. In case of its failure, the station will work according to its original configuration (main stream in service, back-up stream in stand-by)

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