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B3 Series

The B3 Series is twin pilot operated regulator system used for highly accurate pressure control in very low pressure blanketing applications. This reduces a high pressure of inert gas, such as nitrogen to preserve a protecting environment above any liquid stored in a tank or vessel, when the liquid is being pumped out or also when the vessel is rapidly cooled, causing vapors inside the tank vessel to contract.

  • Accuracy :
    B3 Series Pilot Operated systems offer High Accuracy where extremely low set points and minimal proportional band are important, combined with greater capacity for large tanks and / or pump rates.
  • Low-set point Technology :
    Set points as low as 1/4 inch w.c. (0.62mbar)
  • High Capacity Pressure Control :
    For a very small downstream pressure change, PSCV causes large amplified pressure change on the diaphragm of MPCV resulting immediate correction in main valve position and greater capacity for large tanks and / or pump rates.
  • Normal position options :
    Both normally close & normally open options for Main Regulator (MPCV) are available Extensive Material Selection & Wide Range of configurations. Different configurations are available depending on available nitrogen supply pressure, flow and controlled pressure requirements.
  • Economical Labour Saving installation :
    The Main regulator (MPCV), Pilot feed regulator (PFR), Response adjusting device (RAD) & Sensing pilot (PSCV), are duly interconnected. Supply pressure to PFR can be factory piped directly from main regulator body.
  • Easy to Maintain :
    Compact design with minimum number of moving parts. Actuator Internals, Valve Disc & Trim parts can be replaced, without removing the regulator from the pipe line.
  • Proven Technology :
    Some of the Fluids Blanketed by NIRMAL : Acetic Acid, Orthoxylene, Ethylene, Xylene, Styrene, Naphtha, NGL, Benzene, Hexane, Cyclo – Hexane, Toluene, Methanol, Ethanol, Ethylene dichloride (EDC), Ethyl Acetate, Ethylene Oxide, Carbon Sulfide, Aniline, Phynol, Kerosene, VCM, Mercaptan, Iso Propyl Alcohol (IPA), Acetonitrile, Acetone etc.
  • Body Size & Connections:
    1″, 1½”, 2″, 3″, 4″ & 6″ ANSI B16.5 Class 150 & 300 ratings.(Higher Sizes & full port options available for very large tanks).
  • Available Configuration:
    As per the different pressures and flow requirements, different pilot and main regulator combinations are available.
  • Max Spring and Diaphragm Casing Pressure:
    2.25 kg/cm2g to 4 kg/cm2g
  • Temperature Capabilities:
    -25°C to 80°C with Nitrile elastomeric parts.
    -15°C to 180°Cwith Fluoropolymer elastomeric parts.
  • Pressure Setting Adjustment:
    May be adjusted throughout a spring range by turning the adjusting screw of Sensing Pilot (PSCV).
  • Regulator Pressure Registration:
    External downstream sense connection from tank to PSCV.
  • Storage Tank Low Pressure Nitrogen Blanketing (Padding)
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