Models B40 high pressure/ high temperature external cage liquid level switch

Home › Models B40 high pressure/ high temperature external cage liquid level switch

All Products

Downloads

Product Catalogs
Instruction manuals

Models B40 high pressure/ high temperature external cage liquid level switch

The B40 external cage type level switch is a float-actuated control specifically designed and constructed for high pressure, high temperature service conditions such as boilers. It is available in rugged industrial or ASME B31.1 construction.

External cage switches

Technology

A permanent magnet is attached to a pivoted switch actuator. As the float/displacer rises following the liquid level, it raises the attraction sleeve into the field of the magnet, which then snaps against the non-magnetic enclosing tube, actuating the switch. The enclosing tube provides a static pressure boundary between the switch mechanism and the process. On a falling level, the float/displacer deactivates the switch.

  • 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 aluminum or cast iron
  • Choice of tank connection: ◦ 1″ welding nipples ◦ 1″ or 1½” socket welds

Options

  • ATEX housing
  • Flanged connections
  • Temperature extensions
  • Low specific gravity
Chemical
  • Surge drums
Nuclear power
  • Scram discharge volume tanks
  • Turbine steam generators
Power generation
  • Boiler blowdown tanks
  • Condensate receiver tanks
  • Feedwater heaters
  • Flash tanks
  • Steam drums for power generation
Pulp & paper
  • Condensate receiver tanks

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.

ATEX Ex d
CCOE Ex d
CSA XP
FM XP
EAC (GOST) Ex d, Ex ia
IEC Ex d, Ex ia
Inmetro Ex d
Korea Ex d
NEPSI Ex d
SIL SIL 2 (1oo1)

Other approvals are available.

+ 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 aluminum or cast iron
  • Choice of tank connection: ◦ 1″ welding nipples ◦ 1″ or 1½” socket welds

Options

  • ATEX housing
  • Flanged connections
  • Temperature extensions
  • Low specific gravity
+ Applications
Chemical
  • Surge drums
Nuclear power
  • Scram discharge volume tanks
  • Turbine steam generators
Power generation
  • Boiler blowdown tanks
  • Condensate receiver tanks
  • Feedwater heaters
  • Flash tanks
  • Steam drums for power generation
Pulp & paper
  • Condensate receiver tanks
+ 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.

+ Approvals
ATEX Ex d
CCOE Ex d
CSA XP
FM XP
EAC (GOST) Ex d, Ex ia
IEC Ex d, Ex ia
Inmetro Ex d
Korea Ex d
NEPSI Ex d
SIL SIL 2 (1oo1)

Other approvals are available.

Jolac
JOLAC ENGINEERING SDN BHD (“JOLAC”) was incorporated as private limited company in Kuala Lumpur, Malaysia under the Companies Act 1965 on 16th December 1982.
© 2021 Jolac.com.my