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| B3 /- Series (Low Pressure Blanketing Regulator System ) |
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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. The Regulator System rushes in blanketing gas to replace the volume of contracting vapors to prevent the internal tank pressure from decreasing. A small positive pressure prevents outside air, moisture & other contaminants from entering the tank & the possible collapse of the tank. The B3/-Series regulator system includes the Main regulator (MPCV), Pilot feed regulator (PFR), Response adjusting device (RAD) & Sensing pilot (PSCV). |
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| Features |
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 as1/4 inch w.c. (0.62mbar)
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.
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| Specifications |
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Body Size & Connections
Flanged :
1", 1½", 2", 3", 4" & 6" ANSI B16.5 Class 150 & 300 ratings.(Higher Sizes & full port options available for very large tanks).
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)
Pressure Registration
External downstream sense connection from tank to PSCV |
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| Material Of Construction |
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| Body |
ASTM-A-216 Gr. WCB (Standard) CF8, CF8M
NACE & other special materials available on request |
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| Diaphragm Casing |
Steel (Std.), AISI-304, AISI-316 or same as body material |
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| Pilot Spring Casing |
Steel or Aluminium |
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| Internal Trim Parts |
S.S. 316 (Standard), Monel, Copper, Brass
NACE & other special materials available on request |
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| Disc & Diaphragm |
Nitrile (Standard), Neoprene, EPDM, Silicon, PTFE, Fluoropolymer |
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