External Cage Displacer Actuated Liquid Level Switches0 pages

External Cage
Displacer Actuated
Liquid Level Switches
DESCRIPTION
High Pressure Liquid Level Switches are displacer
actuated units, utilizing a single switch mechanism for
level alarm or control functions. These units are
designed for service pressures up to 5000 psig (345 bar)
and liquids with specific gravities of 0.40 and above.
They utilize the Magnetrol® magnetic principle to assure
dependable performance.

FEATURES
• Fabricated carbon steel cages are standard for all
models.
• B74 available with 304 & 316 SS cages
• Sealed or flanged cages available
• Inconel displacer spring and stainless steel trim
• Stainless steel displacers
• Pressures to 5000 psig (345 bar)
• Temperatures to +750° F (+399° C)
• Specific gravity down to 0.40
• Choice of switch mechanism:
Dry contact
Pneumatic
Hermetically sealed
• Choice of switch enclosure:
NEMA 1 carbon steel for pneumatics
TYPE 4X/7/9 Class I,
Div. 1, Groups C & D polymer coated aluminum
TYPE 4X/7/9 Class I,
Div. 1, Group B polymer coated aluminum
• Choice of tank connections:
NPT
Socketweld

Side/side flanges
Side/bottom flanges

Model C74
Flanged External Cage
with TYPE 4X/7/9 Switch Housing

APPLICATIONS
• Hydraulic accumulators

• Hydrocarbon flash tanks

• Natural gas receivers

• Compressors

• H.P. scrubbers
• Optional custom high temperature insulation available.
See bulletin 41-106 for details.