Case Study: Solving Chemical Degradation in Agricultural Sprayer Pumps with FKM Seal Kits
A South American manufacturer of tractor-mounted agricultural spraying machines was receiving warranty claims regarding their plunger pumps. The standard NBR U Type Water Seals and Washer Seals within their 3WZ series pumps were failing rapidly. Upon inspection, it was evident that the concentrated fertilizers, pesticides, and weed-killer chemicals were chemically attacking the NBR rubber, causing it to swell, soften, and ultimately leak pressurized chemicals onto the fields. TRS Seals stepped in to provide a targeted material upgrade by supplying complete custom 3WZ Pump Seal Kits manufactured entirely from high-grade FKM (Fluoroelastomer). FKM is globally renowned for its exceptional chemical resistance against strong acids, bases, and aggressive organic solvents. The V Type Water Seals included in the kit were specifically precision-molded to maintain low friction while providing a chemically inert barrier. The transition to FKM seal kits immediately solved the warranty claims. The new seals exhibited zero swelling or degradation, even after prolonged exposure to the harshest agricultural chemicals, offering farmers a highly durable, leak-free pumping solution.