Clark Solutions

CFS400 Series Shuttle Type Flow Switch

General Purpose 90° Flow Path, Liquid Flow Set Points from 0.75 GPM to 14 GPM

DESCRIPTION

CFS400 series provide accurate flow detection in water and oil with 1% repeatability. They are available in factory preset or field adjustable versions.

Flow settings on the adjustable version can be easily changed without disassembly. A shuttle by-pass vane inside the housing is controlled externally using an ordinary flat-blade screwdriver.

These switches are ruggedly constructed of non-corrosive materials and resist shock and vibration. They are suitable for triggering alarms on interlocking shutdown circuitry when flow rate is improper to protect bearings, gears and cooling systems.

Click here for information on our other flow switches.

SPECIFICATIONS

Wetted Materials:
     Housing: Bronze
     Shuttle: Delrin®
     Spring: 316 Stainless Steel
     O-Ring: Viton®
     Other Wetted Parts: Ceramic
Pressure Rating:
     Max. Operating: 400 PSI @ 100°F (+37.8°C)
     Proof: 800 PSI @ 100°F (+37.8°C)
Operating Temperature: -20°F to +180°F
     (-29°C to +82.2°C)
Repeatability: 1% Maximum Deviation
Set Point Accuracy: ±10%
Set Point Differential: 15% Maximum
Switch: SPDT, 20 VA


  

    Switch Rating, Maximum Resistive Load

  

  

    VA

    Volts

    Amps AC

    Amps DC

  

  

    20

    0-30

    0.4

    0.3

  

  

    120

    0.17

    0.13

  

  

    240

    0.08

    0.06

  



Inlet/Outlet Ports: 3/4" NPT
Electrical Termination: No. 22 AWG, 24" to 26" Polymeric leads
Hazardous Rating: CFS400 Series Flow Switches are U.L. 
     Approved for Class I, Division 2, Groups A, B, C, D hazardous areas.

				
Shuttle Type Flow Switch Typical Pressure Drop
ORDERING INFORMATION


  
					

						FOR YOUR CONVENIENCE, THESE ITEMS ARE AVAILABLE ONLINE

								OR PLEASE CALL 1-800-253-2497 TO ORDER THESE ITEMS		
					

					

    Field
 Adjustable Setpoint CFS400

  

  

    NPT

    Flow
      Setting GPM 

    Part
      Number

  

  

    3/4"

    0.75-4.0
      

    C26600

  

  

    2.0-8.0

    C26601

  

  

    7.0-14.0
      

    C26602

  



  

  
					

						FOR YOUR CONVENIENCE, THESE ITEMS ARE AVAILABLE ONLINE

								OR PLEASE CALL 1-800-253-2497 TO ORDER THESE ITEMS		
					

					

    Fixed Setpoint CFS400

  

  

    NPT

    Flow Setting GPM

    Part Number

  

  

    3/4"

    0.75

    C26440

  

  

    1.5

    C26441

  

  

    2.0

    C26442

  

  

    2.5

    C26443

  

  

    5.0

    C26444

  

  

    7.5

    C26445

  

  

    10.0

    C26446

  












		





 













	
	


	
	
	
	
	
		
	
	
		




		  


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Notes: Flow settings for Fixed Version are calibrated using water at +70°F 
on increasing flow, with units in a vertical position (lead wires up). Temperature 
changes will slightly affect the flow settings listed. Adjustable units that are set 
to customer specifications are subject to factory test stand accuracy. Use of 150 
micron filtration is recommended. Minimum 5 PSI line pressure required.

For assistance call 978-568-3400


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