General description Our VEVOR Air-Operated Double Diaphragm Pump is designed for chemical and industrial use, featuring a robust polypropylene construction and double PTFE diaphragms. This self-priming pump is ideal for transferring viscous and flammable fluids, ensuring smooth operations with its leak-proof design and excellent air-operated performance. Technical specifications Model: QBY4-25PP Type: Double diaphragm Body Material: Polypropylene Inlet Port: 1 inch (25 mm) Outlet Port: 1 inch (25 mm) Air Inlet Size: 1/2 inch (12.7 mm) Max Flow Rate: 79.6 GPM Suction: 0-5 m (0-16.4 ft) Max Suspended Solids: 3 mm (1/8 inch) Max Head: 84 m (275.6 ft) Max PSI: 120 psi 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 QBY4-25PP 1 x Product Manual Usage This diaphragm pump is suitable for handling a variety of fluids, including waste oil, alcohol, hydraulic fluid, gasoline, diesel, detergent, and drinking