Murphy LS200NDVO 사용자 설명서

 

 

 Liquid Level Switches with 2” 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 Murphy weld collar (P/N 15050375) or 
Murphy external float chamber (P/N 15700799).  L1100 
models (1-1/2” NPT) are also available. 

 is a float-activated, pneumatic-vent level 

device used to operate dump valves or similar devices. 

The LS200NDVOR provides a 2” NPT mounting with a 
pneumatic output for interfacing with pneumatic devices such 
as our Murphy pneumatic dump valve or with other pneumatic 
instrumentation. 

 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. 

 is the pneumatic level switch without the DVO and filter regulator. 

NOTE:  Pneumatic media devices require clean, dry, instrument quality air or gas.  This unit is 
supplied with a pressure regulator, filter and Murphy 20BPG pressure gage for improved 
system life and trouble-free operation. 

 

•  Designed for harsh gas compressor scrubber applications 
•  304 stainless steel float operates in 0.55 specific gravity and heavier fluids (see Table 1) 
•  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 vessel or can be mounted via external float chamber 
•  Nickel plated body to provide enhanced corrosion protection 
•  Listed for Class I, Div. 1, Grp. C & D locations 
• Canadian Registration Number OF1476.2 

• 

Stainless Steel models are available for corrosive atmospheres.

 

•  Trip on rising liquid level only