Air-operated double diaphragm pump
Polypropylene construction & PTFE membrane & 79.6 GPM flow rate
Our self-priming diaphragm pump features a fully bolted polypropylene housing and double PTFE diaphragms, making it robust, corrosion-resistant, and leak-free. Sealed ball valves and trouble-free operation ensure outstanding performance. It is perfectly suited for transferring viscous and flammable liquids. Our premium self-priming diaphragm pump ensures the smooth operation of your processes.
- High-quality double PTFE membranes
- Stable and leak-proof construction
- Excellent performance in compressed air operation
- Unique and professional designs
Robust housing made of polypropylene
The housing of the air-operated diaphragm pump is made of polypropylene, is fully screwed together, stable, and corrosion-resistant. Max. temperature: 150°F/66°C; Max. pressure: 120 psi.
PTFE double membrane
The self-priming pump features double PTFE diaphragms, offering high resistance to corrosion and aging. Max. flow rate: 79.6 GPM; Max. delivery head: 275.6 ft/84 m.
Professional air-powered designs
Our diaphragm pump is built to meet international standards for reliable performance. Inlet/outlet connection: DN25PN10 flange connection; air inlet size: FNPT 1/2 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 numerous industries, for example in petroleum and metallurgy, mining, coating, printing, water treatment and automotive industries, etc.
- 1 x Air-operated double diaphragm pump QBY4-25PP
- 1 x Product manual
- Model: QBY4-25PP
- Type: Double membrane
- Body material: Polypropylene
- Inlet connection: DN25PN10 flange connection
- Outlet connection: DN25PN10 flange connection
- Air intake size: 1/2 inch (12.7 mm)
- Maximum flow rate: 79.2 GPM
- Suction height: 0-5 m (0-16.4 ft)
- Max. suspended particles: 3 mm (1/8 inch)
- Max. delivery head: 84 m (275.59 ft)
- Maximum PSI: 120 psi
- Self-priming, dry: 3 m (10 ft)
- Self-priming wet: 4.6 m (15 ft)