The BSK High-pressure pump is a new type of conveying equipment and one of the most reliable pumps currently available. It adopts stable and high-pressure power output, featuring strong pressure resistance, high lift, and stable operation. It is ideal for conveying liquids under high-pressure conditions, long-distance transportation, high-head conveying, and various working conditions requiring high-pressure output.
High Pressure Pneumatic Diaphragm PumpÂ
High Pressure pneumatic diaphragm pump is a new type of conveying equipment, currently one of the most innovative pumps. Using compressed gas as a safe energy source, it can transfer various aggressive liquids, liquids with large particles, high-viscosity liquids, volatile, flammable, and toxic liquids without optical depletion.
BSK has 4 series of pumps: standard pumps, high-pressure pumps, powder pumps, and FDA & 3A pumps. Different wet parts can be used for different purposes. Thanks to the improved air distribution system and stable operating characteristics, BSK pumps are well-known in the chemical, ceramic, oil and gas, food and pharmaceutical industries, mining industry, water treatment, lithium battery manufacturing, building construction, etc.
For BSK 2:1 high-pressure pumps, we offer 1″, 1 1/2″, 2″ and 3″ sizes. They are suitable for high backpressure applications such as filter presses, transfer of high-viscosity liquids, ceramic suspensions, long-distance transportation, etc.
| Pump Size | HA25 | HA40 | HB50 | HB80 |
| Connection Size | 1″ | 1 1/2″ | 2″ | 3″ |
| Allowable Air Pressure (bar) | 0.7Mpa | 0.7Mpa | 0.7Mpa | 0.7Mpa |
| Liquid Outlet Pressure (bar) | 0-1.4Mpa | 0-1.4Mpa | 0-1.4Mpa | 0-1.4Mpa |
| Max. Flow Rate (lpm) | 192 | 378.5 | 667 | 903 |
| Displacement per Cycle (liters) | 0.87 | 2.83 | 3.78 | 7.67 |
| Max. Head (m) | 60 | 80 | 80 | 80 |
| Max. Dry Suction Lift (m) | 6.7 | 6.7 | 6.2 | 5.3 |
| Max. Particle Size (mm) | 3 | 6 | 7 | 9 |
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 |