Air Operated Double Diaphragm Pump QBY4-25L 1 inch Outlet 35 GPM Pneumatic Transfer Max 120 PSI Industrial Use Chemical Waste Oil Dual Dissepiment Nitrile Fluorine Rubber by Cast Iron Aluminum Alloy

Air-Operated Double Diaphragm Pump QBY4-25L - 1-Inch Outlet, Single Unit, 35 GPM, 120 PSI, Aluminum/Cast Iron Body
✔️ Air-operated double diaphragm pump, QBY4-25L, 1" outlet, 35 GPM, 120 PSI max, aluminum or cast iron body, max head 275 ft, suction 23 ft; non-corrosive liquids only.

Air Operated Double Diaphragm Pump QBY4-25L is a pneumatic transfer pump built for rugged industrial environments. It’s commonly used in chemical processing, paint and coating operations, petroleum and automotive workflows, and waste oil handling where reliable, hands-off transfer is essential. The pump features a robust aluminum body with option for cast iron, externally serviceable diaphragm, and a modular air distribution system to minimize downtime and pulsation.

✅ Aluminum body with optional cast iron construction; double diaphragm design for reliable, leak-free fluid handling; externally serviceable air distribution for quick maintenance
✅ Inlet/Outlet size: 1 inch (25 mm); Air inlet: 1/2 inch NPT (12.7 mm)
✅ Flow rate: 35 GPM; Max head: 275 ft (84 m); Suction: 23 ft (7 m)
✅ Max temp: 150 °F; Max pressure: 120 PSI
✅ Diaphragm materials: nitrile rubber, fluorine rubber, chloroprene rubber
✅ Not for corrosive liquids; designed for non-corrosive liquids like oils and water-based chemicals
✅ All-bolted, leak-free construction with externally serviceable air valve for stall-free operation and low pulsation
✅ Widely used in petroleum, metallurgy, mining, coatings, paint, printing, water treatment, automotive
💡 What is an air operated double diaphragm pump used for in industrial liquid transfer? Here's a quick overview. - Handy for transferring non-corrosive liquids like oils, fuels, and water-based chemicals in industrial settings. - Durable, externally serviceable design with leak-free bolted construction. - Provides steady flow with low pulsation and high head for vertical lifts. - Easy installation and maintenance with separate air and liquid connections. This handy setup helps move liquids quickly and reliably in process lines and maintenance tasks.