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Parker’s family of priority pressure compensator valves feature a robust and contamination tolerant design that ensures consistent flow regardless of up or down stream pressures while providing priority to one outlet port. These valves can operate with hydraulic system flows as high as 95 lpm and pressures up to 380 bar with a variety of differential pressure setting and adjustment options. Parker’s pressure compensator valves are ideal for constant and consistent flow applications that contain functions that requires priority such as conveyors or saws within mobile, industrial, or manufacturing markets.
Markets:
• Miscellaneous Industrial
• Miscellaneous Manufacturing
• Miscellaneous Mobile
Features/Benefits:
• Contamination tolerant
• Stable and quiet response
• Hardened working parts for maximum durability
• All external parts zinc plated
Applications:
• Conveyors
• Steering applications
• Saws
• Constant and consistent flow applications
Additional Technical Insight:
Flow through the external orifice (fixed or variable) enters the supply port and produces a pressure drop across the compensator spool. When the inlet pressure exceeds the initial setting of the valve, the force produced by the pressure differential across the spool exceeds the spring force and shifts the compensator spool to throttle, or restrict, the flow, thus maintaining constant flow through the priority port. The excess flow is bypassed out to the system to be used by another function, or back to the system reservoir. Flow out the regulated port must be maintained for bypass flow to continue. For this reason, common practice dictates a pressure control (relief) be installed in the priority line.
