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The Haskel AW-B25 is a 1.5?HP pneumatic liquid pump with a 25:1 nominal (?29:1 actual) ratio, capable of boosting hydraulic pressures up to 4,000?psi (276?bar) using only compressor air. It features a bottom-inlet design for efficient fluid feed and a durable stainless-steel/UHMWPE construction with U-cup seals. Its stall-and-hold mechanism holds pressure without consuming drive air, making it ideal for hydrostatic testing, fluid transfer, clamping, and calibration. Compact, spark-free, and ATEX-capable, the AW-B25 is engineered for safe performance in hazardous environments.
- Operates on compressed air no motors, heat, or sparks
- Delivers hydraulic pressure up to 4,000 psi (276 bar)
- Stall-and-hold design maintains set pressure without air consumption
- Bottom-inlet for reliable fluid intake
- Stainless-steel body and U-cup seals provide durability and corrosion resistance
| Model / Part No. | AW-B25 |
| Power Rating | 1.5 HP pneumatic |
| Nominal / Actual Ratio | 25:1 nominal, ?29:1 actual |
| Max Hydraulic Pressure | 4,000 psi (276 bar) continuous |
| Displacement per Cycle | 1.62 in (26.6 mL) |
| Max Output Flow | ~486 in /min (~8 L/min) |
| Drive Pressure Range | 3 150 psi (0.2 10 bar) |
| Stroke Length | 2" (51 mm) |
| Inlet Type | Bottom inlet (modified) |
| Materials | Stainless steel body, UHMWPE & U-cup seals |
| Weight | ~24 lb |