Description
If you’ve ever dealt with your sprayer’s pump cycling on and off constantly or noticed it struggling to maintain steady pressure, you might need a new unloader valve. This little but mighty valve regulates pressure and keeps your spray system running smoothly, automatically diverting excess flow back to the tank when you’re not spraying. It’s the kind of part you don’t think about until it stops working right.
What You’re Getting
- 3-port design handles 5 GPM flow with pressure range from 800-1500 PSI
- 3/8 inch male NPT inlet and outlet connections for easy plumbing integration
- 1/4 inch female NPT bypass port routes excess flow back to your tank
- Built specifically for Hypro 5300 series pumps but works with similar systems
- Direct replacement that installs without modifications or adapters
Built for Real Farm Work
This unloader valve is designed for agricultural spraying operations where consistent pressure matters. Whether you’re running a three-point sprayer for pasture work, a pull-behind unit for crop spraying, or a truck-mounted system for fence rows and roadsides, this valve keeps your pump from working harder than it needs to. It’s especially handy on smaller sprayer setups where you need reliable pressure control without breaking the bank.
Made to Last
Farm sprayers take a beating from chemicals, weather, and constant pressure cycling. This valve uses quality materials and construction that hold up to the harsh conditions your sprayer faces. The internal components resist corrosion from common herbicides and fertilizers, while the threaded connections seal tight to prevent leaks that waste chemical and cause environmental concerns.
Installation Notes
The valve threads right into your pump manifold or plumbing setup with standard pipe thread connections. Make sure your system pressure doesn’t exceed the 1500 PSI rating, and remember that proper bypass line sizing is important for the valve to work correctly. If your old valve has been acting up, this replacement will get your sprayer back to consistent, reliable operation.






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