General description VEVOR Air-Operated Double Diaphragm Pump features a robust aluminum alloy construction and double nitrile diaphragms, ensuring durability and resistance to corrosion. This self-priming pump is designed for transferring viscous and flammable fluids, making it ideal for various applications in industries such as petroleum, metallurgy, mining, and water treatment. Technical specifications Model: QBY4-50L Type: Air-operated Double Diaphragm Diaphragm Material: Nitrile Body Material: Aluminum Alloy Inlet/Outlet Port: 2 inch (50 mm) Air Inlet Size: NPT 1/2 inch (12.7 mm) Max Flow Rate: 75 GPM Max Head: 84 m (275.59 ft) Valve Type: Ball Suction: 0-5 m (0-16.4 ft) Max Suspended Solids: 3 mm (1/8 inch) Average Air Consumption: 38 CFM Self-Priming Dry: 3 m (10 ft) Self-Priming Wet: 4.6 m (15 ft) Compatibility and accessories 1 x Air-Operated Double Diaphragm Pump 1 x Product Manual Other information