Parker DC-1000-FOFO-5 Hydraulic Check Valve 100 Gpm

Product Description

The PARKER DC-1000-FOFO-5 is a hydraulic control check valve designed to allow flow in one direction while preventing reverse flow in hydraulic circuits. Built with a steel body and metal seals, it handles up to 100 GPM and a maximum working pressure of 3000 psi. The valve uses a 1-5/16-12 Female ORB (O-Ring Boss) inlet thread standard, making it a common choice in high-pressure industrial and mobile hydraulic systems. Hydraulic technicians and fluid power specialists install this valve as part of directional control circuits, cylinder holding applications, or pump protection setups where backflow must be blocked.

This check valve is suited for use in mobile equipment hydraulics, industrial machinery, and heavy-duty fluid power systems where reliable one-way flow control is required. Its compact envelope — 4.88 inches overall length, 1.62 inches wide, and 1.62 inches tall — allows installation in tight manifold or inline configurations. The Female ORB port connection provides a leak-resistant seal under sustained high-pressure conditions, which is critical in systems operating continuously near the 3000 psi maximum.

Key Features

• Maximum flow rate of 100 GPM supports high-volume hydraulic circuits
• Rated to 3000 psi maximum working pressure for demanding industrial and mobile applications
• 1-5/16-12 Female ORB inlet thread delivers reliable, leak-resistant port connections
• Steel body construction provides durability in high-pressure environments
• Metal seal material suited for hydraulic fluid compatibility and long service life
• Compact dimensions allow fitment in space-constrained hydraulic assemblies

Compatibility

Designed as an OEM-style replacement or direct-fit check valve for hydraulic systems using 1-5/16-12 Female ORB porting and rated to 3000 psi maximum working pressure.

Installation Notes

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. Follow standard torque practices for ORB fittings and inspect the O-ring sealing surface for damage before assembly. Verify that system flow direction matches the valve orientation prior to returning the circuit to service.