CP448-2 Counterbalance Valve
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comatrol hydraulic cartridge valves

 

Operation

 

This dual valve, internally piloted HIC is a low leakage counterbalance assembly with hydraulic vent. The CP448-2 uses two CP448-1 8-size cartridges and allows free flow from the V ports to the C ports and blocks flow in the reverse direction until the relief setting is reached, or until adequate pilot pressure has been applied to the opposite V port.

 


 

Applications

Dual counterbalance HIC’s are used for controlling loads in bidirectional motion such as wheel motor applications or for cylinders going over center. They are also suitable for use on the boom and dipper cylinder on an excavator.

 

 

 

 

Specifications

Schematic 

  
Rated Pressure   350 bar [5075 psi]
Rated flow at 22 bar
[319 psi]    
20 l/min
[5 US gal/min]   
Weight   0.78 kg [1.72 lb]
Pilot Ratio   3:1, 4.5:1, 8:1
Cavity   CIB

Performance Curve

 

 

Dimensions

 

 

Example Circuits

   

 

 

Ordering Information

 

 

Product Documents and Downloads
Download this file (CP448-2 3D STP file.stp)CP448-2 3D STP file.stp514 kB04-28-2015
Download this file (CP448-2 Catalog Page.pdf)CP448-2 Catalog Page.pdf442 kB04-28-2015
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