12V Diaphragm Pump with Demand Switch for Agricultural Spraying Applications

Description

Whether you’re spot-treating weeds along fence rows, applying herbicide to problem areas, or running a small boom sprayer on your ATV, having reliable pressure when you pull the trigger makes all the difference. This 12-volt diaphragm pump delivers a steady 3.6 GPM at 40 PSI, giving you the flow and pressure you need for consistent coverage without wasting chemicals or your time.

What You’re Getting

• Demand switch automatically starts and stops the pump when you operate your spray gun—no manual switches to mess with
• Viton valves and Santoprene diaphragm handle tough agricultural chemicals without breaking down
• 1/2-inch male NPT connections work with standard spray system fittings and hoses
• 12-volt operation runs off your tractor, ATV, or truck battery without needing separate power
• Self-priming design pulls from tanks without needing a flooded suction

Built for Real Farm Work

This pump is perfect for spot spraying operations, small boom sprayers, and tank mixing applications where you need reliable chemical delivery. It handles everything from glyphosate and 2,4-D to liquid fertilizers and desiccants. The demand switch design means it only runs when you’re actually spraying, extending pump life and saving battery power during long days in the field.

Made to Last

The Viton valves resist swelling and degradation from harsh chemicals, while the Santoprene diaphragm flexes thousands of times without cracking. Both materials are chosen specifically for agricultural chemical service where cheaper rubber components would fail quickly. The pump body handles temperature swings and vibration without losing its seal.

Good to Know

Wire the positive lead through a fuse to protect your electrical system, and mount the pump below your tank level when possible for easier priming. The demand switch has about a 10 PSI differential, so it’ll cycle on around 30 PSI and off at 40 PSI. Keep spare diaphragms on hand if you’re running high volumes—they’re a wear item but easy to replace in the field.