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1/2019

Installation, Operation, and 

Maintenance Instructions

www.beaumontmanufacturing.com

Model LC10

Specifications

Connections:

Threaded: 1 1/2” and 2”

Flanged: 2” to 8”

Union: 4” and 5”

Pressure Rating:

Threaded: 6000 psi

Flanged: Up to ANSI 2500 Class

Union: 1500 psi

Temperature Range:

-

50° F to 400° F (Varies by Material Selections)

Pilot Connections: 1/4” NPT

Pilot Max Pressure: Limited by Gauges

Electric Switch Ratings:

SPDT: 15 A @ 125, 250, 480 VAC

DPDT: 10 A @ 125 VAC

Application

The LC10 is a liquid level controller.  It uses a displacer balanced by a 
spring to detect the level of a liquid inside a vessel.  As the liquid level 
rises  and  falls  the  LC10  gives  either  an  increasing  or  decreasing   
output signal using a pneumatic pilot or electric switch.

The  LC10  is  available  with  many  different  options  making  it  an      
extremely  versatile  device  that  can  be  set  up  in  a  variety  of  ways.  
Three  different  pneumatic  pilots  options  are  available  as  well  as  two 
electric  switch  options.  Left  hand,  right  hand,  and  back  mount     
options  are  available  to  fit  a  variety  of  vessels  and  piping  layouts. 
Many  different  connections  sizes,  arm  lengths,  displacer  sizes  and 
materials  make  for  an  endless  combination  of  available  models  to  fit 
almost any need.

Many of the  options of the LC10 are  able to be changed  right  in the 
field. The pilots can be easily removed from the LC10 making it easy 
to change them out in the field. The standard LC10 can be swapped 
from right to left hand or vice versa in the field.  The LC10 can also be 
changed  from  direct  to  reverse  acting  in  the  field.  The  displacer  and 
arm  can  also  be  easily  swapped  out  at  any  time  or  changed  from  a 
horizontal to vertical orientation.

LC10B

LC10/
LC10S

Summary of Contents for LC10

Page 1: ...h The LC10 is available with many different options making it an extremely versatile device that can be set up in a variety of ways Three different pneumatic pilots options are available as well as tw...

Page 2: ...reads on the vessel and the LC10 are undamaged and free of debris Apply pipe compound or Te on tape to the threads Insert the Displacer and Arm into the vessel and thread the LC10 onto the vessel For...

Page 3: ...as shown in Figure 4 Turning the Lower Spring Retainer changes the amount of load provided by the Spring which in turn changes the amount of support provided to the Displacer s weight Turning the Lowe...

Page 4: ...the Fulcrum along the Flapper Bar Moving the Fulcrum toward the center of the Case increases the sensitivity of the Displacer to changes in liquid level thereby decreasing the span Moving the Fulcrum...

Page 5: ...the stud and simply swap to the other side Reference Figure 11 Action Change To change an LC10 from reverse to direct or vice versa simply unscrew the nut holding on the Flapper Bar Remove the Flapper...

Page 6: ...e Spring Next unbolt the Pilot Plate that covers the front of the Pilot Push down the Torque Bar on the Spring side as far as it will go This will allow the Pilot to be removed Remove the Gasket behin...

Page 7: ...acer is bottoming out on something inside the vessel Check the displacer arm by moving the level adjustment bar up and down If the level adjusting bar only moves in one direction it indicates the disp...

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