Hydraulic Directional Control Valve, 1-Spool, 21 GPM, 4300 PSI

Hydraulic directional control valve delivers precise manual control of hydraulic flow for loaders, tractors, and auxiliary circuits. This 1-spool open-center loader valve supports up to 21 GPM and 4300 PSI, with a spring-centered neutral return to help prevent drift when you release the handle. Built with a compact, high-strength aluminum/iron body, it installs easily in tight equipment bays while keeping controls responsive and predictable.

• Delivers manual 1-spool control for routing hydraulic oil to A/B work ports with reliable, repeatable operation.


• Returns to neutral with spring-center design, helping reduce unintended movement when the lever is released.


• Includes internal check valve to help prevent backflow and maintain circuit stability under load.


• Adjusts system pressure via built-in relief/overflow valve to match your hydraulic setup and attachment needs.


• Fits compact installs with durable aluminum/iron construction for tractors, loaders, sprayers, and industrial equipment.

Upgrade or replace a worn valve and restore smooth, confident control to your hydraulic system. Designed for wide application across agriculture, forestry, construction, and shop equipment, this compact spool valve is ideal for adding a dedicated circuit or refreshing a loader control block. Verify your port sizes and open-center compatibility before installation to ensure a clean fit and proper flow. Grab yours today and get your machine back to consistent, responsive hydraulic control.

• Valve type: Hydraulic directional control valve (manual)


• Spool count: 1 spool


• Center system: Open center


• Flow rating: 21 GPM


• Max operating pressure: 4300 PSI


• Spool action: Spring-centered neutral (spring return)


• Relief valve: Adjustable (integrated)


• Ports A/B/N: 1/2-12 NPTF


• Ports P/T: 3/4-14 NPTF


• Materials: Aluminum and iron body components