Parker 3C20EF-EF25 Hydraulic Check Valve 90 Gpm 3000 Psi

Product Description

The PARKER 3C20EF-EF25 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 fluorocarbon seals, it handles up to 90 GPM and a maximum working pressure of 3,000 psi. The inlet is threaded 1-5/8-12 Female SAE, making it compatible with standard high-pressure hydraulic line fittings. Hydraulic technicians and fluid power specialists install this valve in mobile and industrial hydraulic systems where controlled, one-directional flow is required to protect pumps, actuators, and other downstream components from backflow damage.

This check valve is suited for use in industrial and mobile hydraulic applications operating at elevated pressures. Typical installation scenarios include hydraulic power units, press circuits, lift systems, and any fluid power circuit where reverse flow must be blocked. The 1-5/8-12 Female SAE thread standard is common across heavy-duty hydraulic equipment, making this valve a practical replacement or new-installation choice for professionals working with high-capacity hydraulic systems in manufacturing, construction, and material-handling environments.

Key Features

• Maximum flow rate of 90 GPM supports high-capacity hydraulic circuits
• Rated to 3,000 psi maximum working pressure for heavy-duty applications
• 1-5/8-12 Female SAE threaded inlet for secure, leak-resistant connection
• Steel body construction provides durability in demanding hydraulic environments
• Fluorocarbon seals offer broad fluid compatibility and resistance to hydraulic fluid degradation
• Compact envelope at 5.76 inches overall length, 2 inches wide, and 2 inches tall for space-constrained installations

Compatibility

Designed as an OEM-style replacement or new-installation check valve for hydraulic systems using 1-5/8-12 Female SAE threaded connections and requiring flow control up to 90 GPM at pressures up to 3,000 psi.

Installation Notes

Installation should be performed by a qualified fluid power technician or hydraulic systems specialist. Depressurize and lock out the hydraulic system completely before removing or installing any valve. Verify thread engagement and use appropriate hydraulic-rated thread sealant where required per the system manufacturer's specifications. Confirm flow direction arrow or valve orientation matches the intended circuit flow path before returning the system to service.