Murphy Level Switch LS200

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Murphy LS200 Level Switch

Designed for harsh gas compressor scrubber applications, the LS200 Series Liquid Level Switches feature a robust design that trips on rising liquid level only. With both electric and pneumatic models available, the instruments screw directly into the vessel or can be mounted via an external float chamber. The nickel-plated body provides enhanced corrosion protection while the 304 stainless steel float operates in 0.55 specific gravity and heavier fluids. Additional features include:

  • Rated for 2000 psi (13.8 MPa) [138 bar] working pressure
  • Listed for Class I, Div. 1, Grp. C & D locations
  • Canadian registered
  • Stainless steel models available for corrosive atmospheres

The LS200 Series replaces the FW Murphy Series L1200 Liquid Level Switches. The MSLS (Scrubber Level System) replaces the LS200 high-level shut-down switch with the MLS-020 magnetic level switch.

Technical Data

Murphy SKU:sc-5432 Category: Tag: Brand:

Available on backorder


Liquid Level Switches with 2 in. NPT mounting are float activated to operate an electrical SPDT snap-switch (optional DPDT on some models) for alarm or shutdown of an engine or electric motor. The LS200 connects directly into the vessel wall and can be used with a FW Murphy weld collar or FW Murphy external float chamber.

    • Designed for harsh gas compressor scrubber applications
    • 304 stainless steel float operates in 0.55 specific gravity and heavier fluids
    • LS200 series rated for 2000 psi (13.8 MPa) [138 bar] working pressure
    • Electric and pneumatic models available
    • More robust design
    • All models screw directly into the scrubber or can be mounted via external float chamber
    • Nickel plated body to provide enhanced corrosion protection
    • Listed for cCSAus Class I, Div 1, Grps. C & D locations
    • Canadian Registration Number 0F01476.2
    • Stainless steel models are available for corrosive atmospheres.
    • Trip on rising liquid level only


  • Body: Nickel-plated; optional 316 stainless steel
  • Float: 304 stainless steel
  • Pressure Rating: 2000psig (13.8 MPa) [138 bar]
  • Canadian Registration Numbers (issued by ABSA): 0F01476.2
  • O-ring: Viton
  • Process Connection: 2” NPT
  • Temperature Rating: -20° to 300°F (-29° to 149°C)
  • Electrical: SPDT std.
  • Wiring: 18 AWG x 36 in. (1.0 mm2 x 916 mm)

Additional information

Weight4 kg


Possible replacements and related products