Parker 3C20EF-EF5A Hydraulic Control Check Valve 90 Gpm

Product Description

The PARKER 3C20EF-EF5A is a hydraulic control check valve designed to allow flow in one direction while preventing backflow in hydraulic circuits. Built with a steel body and nitrile seals, it handles up to 90 GPM and a maximum working pressure of 3,000 psi. The female SAE 1-5/8-12 inlet threads directly into standard hydraulic porting. At 5.76 inches in overall length and 2 inches in both height and width, this is a compact, robust valve suited for mobile and industrial hydraulic applications. Installation is handled by licensed hydraulic technicians or fluid power specialists on equipment requiring positive flow control and backflow prevention.

This valve is used in hydraulic systems where directional flow control and circuit protection from reverse pressure are required. Typical applications include mobile equipment hydraulics, industrial press circuits, and lift systems operating at or below 3,000 psi. The female SAE thread inlet makes it compatible with standard SAE hydraulic fittings commonly found in agricultural, construction, and industrial machinery. The nitrile seal construction provides reliable performance with petroleum-based hydraulic fluids in demanding duty cycles.

Key Features

• Maximum flow rate of 90 GPM for high-demand hydraulic circuits
• Rated to 3,000 psi maximum working pressure
• Female SAE 1-5/8-12 inlet thread for standard hydraulic porting
• Steel body construction for durability in industrial and mobile applications
• Nitrile seals compatible with petroleum-based hydraulic fluids
• Compact envelope at 5.76 inches length, 2 inches height, and 2 inches width

Compatibility

Designed as an OEM-style replacement or new-installation check valve for hydraulic systems using female SAE 1-5/8-12 porting rated to 3,000 psi and flow rates up to 90 GPM.

Installation Notes

Installation should be performed by a qualified fluid power technician or hydraulic system specialist. De-pressurize and isolate the hydraulic circuit fully before removing any fittings or installing this valve. Verify thread engagement and use appropriate thread sealant or O-ring face seal fittings as required by the circuit design. Confirm flow direction arrow or valve orientation against system schematic before final assembly.