Description
When your diaphragm sprayer starts losing pressure or chemicals start eating through the diaphragm, you know it’s time for a rebuild. This Desmopan diaphragm kit gives you the high-performance replacement parts you need to get back to spraying with confidence. The Desmopan material isn’t just tough—it’s specifically engineered to handle the chemicals you’re putting through your pump every day.
What You’re Getting
- Desmopan construction that stands up to oils, greases, and solvents without breaking down
- High wear resistance means longer service life between rebuilds
- Chemical compatibility with most agricultural spraying applications
- Complete kit includes everything needed for a proper diaphragm replacement
Built for Chemical Applications
This kit is designed for AR Pumps diaphragm sprayers used in agricultural and commercial spraying operations. Whether you’re applying herbicides, pesticides, or liquid fertilizers, the Desmopan material maintains its flexibility and sealing properties even when exposed to harsh chemicals that would destroy standard rubber diaphragms.
Made to Last
Desmopan is a premium polyurethane material that’s proven to outlast conventional diaphragm materials in chemical service. It resists swelling, cracking, and degradation from exposure to petroleum-based chemicals and aggressive solvents. This means fewer pump failures during critical spraying windows and lower long-term maintenance costs.
Good to Know
Before installing, inspect your pump housing for scoring or damage that could cause premature diaphragm failure. Clean all surfaces thoroughly and check that valves are seating properly. Follow your pump manufacturer’s torque specifications when reassembling to prevent over-tightening that can damage the new diaphragm.



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