Imovilli Diaphragm Pump Surge Chamber Diaphragm – D82, D113, D133, D203, D243, D274, D335, D406

Direct-Fit Replacement Surge Chamber Diaphragm for Imovilli Diaphragm Pumps A worn or cracked surge chamber diaphragm is one of the most common causes of pressure fluctuation and pump inefficiency in spray operations. This direct-fit replacement restores smooth, consistent flow to your Imovilli pump — getting you back in the paddock faster and protecting your downstream equipment from pressure spikes. Engineered to Imovilli specifications, this diaphragm delivers the correct flex characteristics and chemical resistance needed for reliable long-term performance in agricultural spraying applications. Compatible Imovilli Pump Models D82 D113 D133 D203 D243 D274 D335 D406 Why Replace Instead of Run-On? A failing surge chamber diaphragm doesn't just affect pressure — it accelerates wear on pump valves, seals, and nozzle components. Replacing it at the first sign of pulsation is the lowest-cost way to protect your entire spray system and maintain accurate application rates.