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The PARKER 3C20F-F5 is a hydraulic control check valve designed to allow flow in one direction while preventing backflow in hydraulic systems. It accepts a 1-1/4-11-1/2 Female NPTF threaded inlet and supports a maximum flow rate of 90 GPM, making it well-suited for moderate-to-high-flow industrial and mobile hydraulic circuits. The valve body measures 5.76 inches in overall length and 5.76 inches in overall height, with a 2-inch overall width. Fluorocarbon seals give it a wide operating temperature range, from -15 degrees F to 400 degrees F, allowing reliable service in demanding environments. This valve is installed by hydraulic system technicians and fluid power specialists.
The 3C20F-F5 fits applications where reliable backflow prevention is required in hydraulic circuits. Typical install scenarios include industrial machinery, mobile equipment, and power-unit assemblies where maintaining pressure or preventing reverse flow through a circuit leg is critical. The Female NPTF thread standard ensures a pressure-tight, dryseal connection without the need for supplemental thread sealant in many installations. Its temperature tolerance makes it serviceable in both cold-start outdoor equipment and high-cycle industrial presses or lifts.
Designed as an OEM-style hydraulic control check valve for use in hydraulic circuits requiring a 1-1/4-11-1/2 Female NPTF threaded inlet connection and a maximum flow rate of 90 GPM.
Installation should be performed by a qualified hydraulic technician or fluid power specialist. Depressurize and lock out the hydraulic system fully before removing or installing any valve. Verify that the system fluid is compatible with Fluorocarbon seals prior to installation. Follow applicable industry and equipment manufacturer guidelines for hydraulic line connections and torque practices.
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