LS200 Series

  • 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

FW Murphy Production Controls offers support for all our products. If you are unable to find the product that you need, please call us at 918-957-1000.

Stage V: 
Product Overview: 

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.

LS200 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.

LS200NDVOR is a float-activated, pneumatic-vent level device used to operate DVU Series dump valves or similar devices. It provides a 2 in. NPT mounting with a pneumatic output for interfacing with pneumatic devices such as the FW Murphy pneumatic dump valve or other pneumatic instrumentation.

LS200NDVO is the Dump Valve Operator (DVO) without the pressure regulator for those applications where the system provides a filter regulator for instrument-quality air or gas as the control medium.

LS200N is the pneumatic level switch without the DVO or filter regulator. Please note: pneumatic media devices require clean, dry, instrument-quality air or gas.