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ISO9001:2015, CE, and ATEX certified diaphragm pumps built for reliability in chemical, mining, food, and lithium battery industries. Direct replacements for Sandpiper, ARO, Wilden, and more.
DJ PUMP is a leading manufacturer and supplier of high-quality air-operated double diaphragm (AODD) pumps and replacement parts. With certifications including ISO9001:2015, CE, and ATEX, our pumps are trusted globally across demanding industries such as chemical processing, mining, food & beverage, and lithium battery production.
Our mission is to deliver reliable, durable, and cost-effective pumping solutions that meet or exceed OEM specifications. We specialize in manufacturing compatible replacement parts for major brands like Sandpiper, ARO, Wilden, Graco, and Yamada — ensuring seamless integration and superior performance.
Products Available
Industries Served
From non-metallic to all-stainless steel models, our AODD pumps and spare parts are engineered for durability, safety, and optimal performance in harsh environments.
316 SS construction for corrosion resistance. Ideal for food, marine, and acid mist environments.
Aluminum body with neoprene or nitrile diaphragms. Designed for rugged use.
Chemical-resistant thermoplastic construction. Ideal for aggressive fluids.
Precision-engineered for reliable air control and long cycle life.
Robust aluminum or stainless steel bodies for industrial applications.
Leak-free, portable design for dry, fine powders up to 75μm.
Non-contaminating design with no iron, copper, or zinc.
Food-grade epoxy coating and quick-connect fittings.
Engineered for reliability, safety, and long-term performance.
ISO9001:2015, CE, ATEX, and MA (mining) certifications ensure compliance and safety.
Optimized airflow and robust materials deliver consistent flow and pressure.
Direct replacements for Sandpiper, ARO, Wilden, Graco, and Yamada.
High-quality alternatives at competitive prices without sacrificing performance.
Expert technical team ready to assist with selection, installation, and troubleshooting.
Serving chemical, food, mining, pharmaceutical, and battery manufacturing sectors.
Our pumps are trusted across diverse industries for their durability and safety.
Pumps free of iron, copper, and zinc to prevent contamination in battery slurries.
Equipped with handles and protective covers; holds MA safety certification.
Food-grade epoxy coating and hygienic quick-connect fittings.
Corrosion-resistant materials including PVDF, ETFE, and 316 stainless steel.
Clean, leak-free transfer of sensitive compounds and solvents.
Safe, portable transfer of fine, dry powders under 75μm.
Need help selecting the right pump or part? Our experts are ready to assist.
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