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The PARKER P04064 is a 250 psi replacement spring designed for use with Parker FRL (Filter-Regulator-Lubricator) units. Springs in FRL regulators control the pressure-setting mechanism, allowing the regulator to maintain a stable downstream pressure against varying supply conditions. This component is a direct service part intended for repair or maintenance of existing FRL assemblies. Licensed pipefitters, pneumatic system technicians, and industrial maintenance professionals typically source this part when rebuilding or restoring regulator function rather than replacing the entire FRL unit.
This spring is specifically rated for 250 psi service within compatible Parker FRL regulator assemblies. It is suited for compressed air and pneumatic fluid power systems found in industrial, commercial, and light manufacturing environments. The part is sold individually and is intended as a service replacement to restore proper pressure regulation without full unit replacement.
Designed for use with Parker 06 and 07 RE Series FRL units as specified by the manufacturer.
Installation should be performed by a qualified technician familiar with pneumatic system service. Before servicing the FRL assembly, depressurize the system completely and isolate the unit from the compressed air supply. Follow the FRL manufacturer service documentation for disassembly sequence and spring seating requirements. Do not pressurize the system until the regulator is fully reassembled and all connections are confirmed leak-free.
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