The pneumatic diaphragm pump is a new type of conveying equipment and one of the most innovative pumps currently available. It utilizes compressed gas as a safe power source and is suitable for conveying various corrosive liquids, liquids containing large particles, and high-viscosity liquids…
Pneumatic diaphragm pumps are a new type of conveying equipment and one of the most innovative pumps available today. Using compressed gas as a safe power source, they can transport a variety of corrosive liquids, liquids containing large particles, high-viscosity liquids, volatile, flammable, toxic liquids, and optically destructive liquids. BSK offers four main series of pumps: standard pumps, high-pressure pumps, powder pumps, FDA-certified pumps, and 3A-certified pumps. Multiple wet end options are available to meet diverse application needs. With its advanced air distribution system and stable performance, BSK pumps enjoy a high reputation in industries such as chemical, ceramics, oil and gas, food and pharmaceutical, mining, water treatment, lithium battery production, and construction.
The BSK series of aluminum alloy pumps are available in 1/2-inch, 1-inch, 1 1/2-inch, 2-inch, and 3-inch wet end sizes. Optional materials include PTFE, Santoprene, Chytrel, nitrile rubber, and Vithion. These pumps are ideal for applications such as wastewater treatment, ceramic sludge treatment, filter presses, and crude oil transportation.
| Pump Size | BP15AL | BA25AL | BA40AL | BA50AL | BA80AL |
| Process Connection Size | 1/2 inch | 1 inch | 1 1/2 inch | 2 inch | 3 inch |
| Allowable Air Pressure (bar) | 0.15-0.69 MPa | 0.1-0.83 MPa | 0.1-0.83 MPa | 0.1-0.83 MPa | 0.1-0.83 MPa |
| Max Flow Rate (L/min) | 45.3 | 192 | 378.5 | 667 | 903 |
| Displacement per Cycle (L) | 0.14 | 0.87 | 2.83 | 3.78 | 7.67 |
| Max Delivery Height (m) | 70 | 60 | 80 | 80 | 80 |
| Max Dry Suction Height (m) | 4.1 | 6.7 | 6.7 | 6.2 | 5.3 |
| Max Particle Size (mm) | 2.5 | 3 | 6 | 7 | 9 |
| Weight (kg) | 4.8 | 9.5 | 18 | 24.5 | 43 |
Performance curve
Choose a diaphragm
Excellent √Good! Satisfactory X Poor
| Diaphragm Material | Expected Life | Abrasion Resistance | Chemical Compatibility | Heat Resistance | Temperature (Min) | Temperature (Max) |
|---|---|---|---|---|---|---|
| PTFE | + | + | + | + | 40°F/4.4°C | 220°F/104°C |
| Santoprene | + | + | √ | √ | -40°F/-40°C | 225°F/107.2°C |
| Hytrel | + | + | √ | √ | 32°F/0°C | 175°F/79.4°C |
| Viton | X | ! | + | + | -40°F/-40°C | 350°F/176.6°C |
| Buna-N | + | √ | ! | ! | 10°F/-12.0°C | 180°F/82°C |
