Parker CB Series Counterbalance Sandwich Valve
Parker’s CB series counterbalance valve controls the actuator movement with overrunning loads.
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Parker’s CB series counterbalance valve operates as a pressure relief valve. The setting pressure is lowered by the pressure in the inlet line. The return flow from the actuator is piloted and controlled by the inlet flow to the actuator, ensuring a cavitation-free lowering load.
To ensure safe load holding the setting pressure should be approximately 30% higher than the maximum load pressure.
Markets:
• Factory Automation
• Lumber & Wood
• Machine Tools
• Material Handling
• Miscellaneous Industrial
• Miscellaneous Manufacturing
• Miscellaneous Processing
• Molding
• Packaging Machinery
• Plastic Processing
• Primary Metal Refining Process
• Rubber & Tire Processing
• Vehicle Assembly Facilities
Benefits:
• Available in 5 port sizes
• Controlled Movement loads
• Load holding via leak-free poppet valve
• Secondary relief protection for the actuator
Applications:
• Suitable for general hydraulic applications
Technical Specifications
Maximum Operating Temperature | +176 °F |
Maximum Flow Rate | 15, 30, 60, 120 Gal/min |
Minimum Operating Temperature | -4 °F |
Actuation Type | Hydraulic Pressure |
Body Material | Steel |
Seal Material | Nitrile |
Product Style | Counterbalance Valve |
Maximum Operating Pressure | 3000, 5000 psi, 207, 345 bar |
Allowable Circuit Leakage | 5 DPM |
Filter Efficiency Rating | ISO 4406 (1999); 18/16/13 (meet NAS 1638/7) |
Pilot Pressure Ratio | 3 |
Media | Oil |
Mounting Type | Subplate |
Parker CB Series Counterbalance Sandwich Valve Service Manual
Parker CB Series Counterbalance Sandwich Valve Service Manual
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