• B40 Sealed External Cage Type Level Switch

B40 Sealed External Cage Type Level Switch

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Series B40 External Caged Liquid Level Switch

B40 liquid level switch is specifically designed and constructed for high-pressure, high-temperature service conditions. These type level switches are completely self-contained units designed for side mounting to a tank or vessel with welded or flanged pipe connections.

Operating Principle

As the counter weighted float follows liquid level changes, a magnetic sleeve is moved into or out of the field of a switch-actuating magnet causing switch operation. A non-magnetic barrier tube isolates the switch mechanism from the controlled liquid. 

Applications

  • Accumulators
  • Receivers
  • Flare pots
  • Scrubbers
  • Flash tanks
  • Knockout drums
  • Storage tanks
  • Separators

Features

  • Choices of chamber materials include carbon steel, stainless steel and chrome-moly
  • 300 series stainless steel float
  • Choice of switch mechanism:
    • Dry contact
    • Hermetically sealed
  • Minimum specific gravity 0.65
  • Choice of switch mechanism enclosure:
    • TYPE 4X polymer coated steel
    • TYPE 4X/7/9 Class I, Div. 1, Groups B, C & D, polymer coated aluminium or cast iron
  • Choice of tank connection:
    • 1" welding nipples
    • 1" or 1 1⁄2" socket welds

 Options

  • ATEX housing
  • Flanged connections
  • Temperature extensions
  • Low specific gravity

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