Parker DT-620-MFMO-5 Hydraulic Check Valve 15 Gpm

Product Description

The PARKER DT-620-MFMO-5 is a hydraulic control check valve designed to allow flow in one direction while preventing reverse flow in hydraulic circuits. Built from steel with metal seals, it is rated for a maximum working pressure of 3500 psi and a maximum flow rate of 15 GPM. The valve uses a Male JIC x Male ORB thread configuration on a 7/8-14 inlet, making it compatible with standard hydraulic line connections. Its compact body measures 1.89 inches in length, 1.06 inches in width, and 1.06 inches in height. Hydraulic system technicians and fluid power specialists install this component during new builds and service work on mobile and industrial hydraulic systems.

This check valve is suited for use in hydraulic circuits where backflow prevention is required under high-pressure operating conditions. Typical installations include mobile equipment hydraulics, industrial machinery, and power unit assemblies. The Male JIC x Male ORB thread configuration accommodates common hydraulic fittings used in medium- to high-pressure systems operating up to 3500 psi. The all-steel construction with metal seals makes it appropriate for demanding duty cycles where elastomeric seals would be insufficient.

Key Features

• Maximum working pressure of 3500 psi for high-pressure hydraulic circuit applications
• Maximum flow rate of 15 GPM to suit a wide range of mobile and industrial circuits
• Male JIC x Male ORB thread standard on 7/8-14 inlet for compatibility with common hydraulic fittings
• Steel body construction for durability in demanding hydraulic environments
• Metal seal material for use where elastomeric seals are not suitable
• Compact form factor at 1.89 inches overall length for space-constrained installations

Compatibility

Designed as an OEM-style replacement or new-installation check valve for hydraulic systems requiring a 7/8-14 Male JIC x Male ORB fitting with a 15 GPM flow capacity and up to 3500 psi working pressure.

Installation Notes

Installation should be performed by a qualified hydraulic systems technician. Before servicing any hydraulic circuit, relieve all system pressure and de-energize the power unit to prevent accidental actuation. Use appropriate thread sealant or verify metal-to-metal seating per the fitting standard; do not overtighten JIC or ORB fittings without following manufacturer torque guidance for the specific fitting size. Verify flow direction marking on the valve body before final installation to ensure correct orientation in the circuit.