Air-operated double diaphragm pump, cast iron construction & nitrile diaphragm & 3 GPM flow rate. Our self-priming diaphragm pump features a fully bolted cast iron casing and double nitrile diaphragms, making it robust, corrosion-resistant, and leak-free. Sealed ball valves and trouble-free operation ensure excellent performance. It is perfectly suited for pumping viscous and flammable liquids. Our top-of-the-line self-priming diaphragm pump ensures the smooth operation of your processes.
High-quality double membranes made of nitrile
Excellent performance in compressed air operation
- Unique and professional designs
Robust cast iron housing
The housing of the air-operated diaphragm pump is made of cast iron, is fully bolted, stable, and corrosion-resistant. Max. temperature: 150°F/66°C; Max. pressure: 90 psi.
Nitrile double membrane
The self-priming pump features double nitrile diaphragms, offering high resistance to corrosion and aging. Max. flow rate: 3 GPM; Max. delivery head: 196.85 ft/60 m ±15%.
Professional air-powered designs
Our diaphragm pump meets international standards for reliable performance. Inlet/outlet port size: 1/2 inch; air inlet size: FNPT 1/4 inch.
Sealed ball valve
Ball valves and fluid caps are easily accessible for maintenance and repairs. Furthermore, the engine design ensures optimal air efficiency. An unbalanced air valve prevents stalling during operation.
Handle made of various materials
This air-operated diaphragm pump can pump many viscous and flammable liquids, including waste oil, alcohol, hydraulic fluid, gasoline, diesel, detergents, drinking water, and so on.
Versatile applications
The double diaphragm pump is used in various industries, for example in the petroleum, metallurgy, mining, coating, printing, water treatment and automotive industries, etc.
- 1 x Air-operated double diaphragm pump
- 1 x Product manual
- Model: QBK-15
- Color: Blue
- Body material: Cast iron
- Inlet connection: 1/2 inch (12.7 mm)
- Outlet connection: 1/2 inch (12.7 mm)
- Air intake size: 1/4 inch (6.35 mm)
- Gas nozzle: 0.32 inch (8 mm)
- Maximum flow rate: 3 GPM
- Suction height: 0-5 m (0-16.4 ft)
- Max. delivery head: 196.85 ft/60 m±15%
- Maximum PSI: 90 psi