Cartridge Style Dual Pilot Operated Check Valves CPD084P

Designed to lock hydraulic circuits or actuators in rest conditions, Parker’s dual pilot operated check valves allow bidirectional flow ranging up to 19 lpm (5 gpm) and pressure up to 207 bar (3,000 psi) after pilot pressure is supplied.

Parker’s family of dual pilot operated check valves feature a space and cost saving design that fits in a common industry cavity and can operate with hydraulic system flows as high as 19 lpm and pressures up to 207 bar. The internal pilot piston of Parker’s selection make these valves suitable for load and position holding applications within a broad range of markets, such as the aerial, construction, material handling, industrial markets, and many more. The standard catalog option for these reliable valves has a pilot ratio of 3:1 in order to meet application needs without requiring high pilot pressures.

Markets:
• Aerial
• Construction Equipment
• Forestry Equipment
• Material Handling Equipment
• Miscellaneous Industrial
• Miscellaneous Manufacturing
• Miscellaneous Mobile

Features/Benefits:
• Cost effective – replaces two cartridges
• Hardened, precision ground parts for durability
• Internal pilot piston
• Common cavity
• All external parts zinc plated

Applications:
• Load holding
• Position holding

Additional Technical Insight:
The CPD084P rated at 3000 psi with a flow rating of up to 5 gpm. The integrated pilot piston has a 3:1 pilot ratio. At rest the internal checks remain seated, blocking flow from exiting the cylinder and locking the cylinder in place. When pressure is applied to either valve port, the check valve will open allowing free flow from the inlet to the actuator port across the check valve. As pressure is applied to shift the cylinder, the internal piston will also shift to mechanically shift open the flow path across the opposite check valve, allowing flow to pass back across the valve in the return direction.

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