Description
When you need reliable pressure washing, chemical spraying, or liquid transfer on the farm, this AR50 diaphragm pump delivers the power and flow you’re looking for. Whether you’re cleaning equipment, spraying herbicides, or moving liquid fertilizer around the operation, a good diaphragm pump keeps things moving without the hassles of priming and re-priming that come with other pump types.
What You’re Getting
- Twin diaphragm design pumps up to 14.8 gallons per minute with consistent flow
- Medium pressure capability up to 580 PSI handles most farm spraying and washing jobs
- Self-priming operation means it’ll pull liquid from your tank without fussing around
- Versatile mounting with a 1-inch solid shaft on one end and flange mount on the other
- Chemical resistant construction stands up to fertilizers, herbicides, and cleaning solutions
Built for Real Farm Work
This pump works great on spray rigs, pressure washers, and tank transfer setups. The 5.2 horsepower rating gives you plenty of power for most medium-duty applications, while the 1-1/4 inch inlet handles good flow from your supply tank. Whether you’re mounting it to a tractor PTO shaft or coupling it to an electric motor, the dual mounting options make installation flexible.
Made to Last
Diaphragm pumps are tough by nature since there’s no direct contact between the liquid and pump internals. This one’s designed to handle the temperature swings and chemical exposure that come with farm use. The AR Pumps brand has been around long enough to know what works in agricultural applications.
Installation Notes
The solid shaft end works well with direct coupling or belt drives, while the flange mount gives you options for motor mounting. Keep your inlet lines as short as possible and use proper hose clamps – diaphragm pumps work best when they don’t have to fight air leaks. A simple pressure relief valve protects the pump if you accidentally dead-head it.






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