Description
When your sprayer pump starts losing pressure or you’re seeing chemical seepage around the diaphragm housing, it’s time for a replacement. The D30 series pumps handle up to 580 PSI and run at speeds from 550 to 3600 RPM, so the diaphragm takes a real beating season after season. This buna rubber diaphragm is built to restore that consistent pressure and flow you depend on for even coverage.
What You’re Getting
- Buna rubber construction that resists chemical breakdown from herbicides, fungicides, and fertilizers
- Precise fit for D30 pumps that eliminates pressure loss and chemical leakage
- Built to handle the 140-degree operating temperature of medium-duty spray applications
- Direct replacement part that restores your pump to factory performance
Built for Real Farm Work
This diaphragm fits the AR D30 series medium pressure pumps that move up to 9.5 gallons per minute – the workhorses you’ll find on field sprayers, nurse tanks, and chemical applicators. Whether you’re running a three-point sprayer on row crops or using a pull-behind unit for pasture management, these pumps handle the daily grind of agricultural chemical application.
Made to Last
Buna rubber stands up to the harsh chemicals and temperature swings that come with farm spraying. This material resists swelling and cracking from exposure to 2,4-D, glyphosate, and other common agricultural chemicals. It maintains flexibility through hot summer days and cool morning applications, keeping your pump running smoothly all season long.
Installation Notes
Replacing the diaphragm is straightforward if you’ve worked on pumps before – just remove the diaphragm housing bolts and swap out the old membrane. Clean the housing surfaces thoroughly and check that the new diaphragm seats properly before reassembling. A little spray lubricant on the housing threads makes reassembly easier and prevents galling.
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