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The Haskel MSHP-21 is a compact 1/3 HP stainless-steel liquid pump designed for demanding field and industrial applications. Driven purely by compressed air ( 125 psi), it delivers high-performance hydraulic pressure up to 2,600 psi continuous. Featuring a built-in manual hand-pump and stall-and-hold mechanism, it maintains system pressure without extra airflow. Its precise 21:1 nominal ratio (actual ~22 25:1) and fine displacement (~0.2 in per cycle) make it ideal for precision liquid transfer, hydrostatic testing, and clamp actuation. Combining durability, safety, and portability, the MSHP-21 excels in remote or hazardous environments.
- Achieves 2,600 psi hydraulic output using shop air only
- Built-in stall-and-hold functionality eliminates air consumption at pressure
- 21:1 nominal ratio ( 22 25:1 actual) ensures precise control
- Includes manual hand-pump for non-powered operation
- Compact, stainless-steel construction corrosion-resistant and field-ready
| Model / Part No. | MSHP-21 |
| Horsepower | 0.33 HP (pneumatic) |
| Nominal / Actual Ratio | 21 : 1 / 22 25 : 1 |
| Max Continuous Pressure | 2,600 psi (179 bar) |
| Displacement per Cycle | 0.2 in (~3.3 mL) |
| Max Flow Rate | ~130 in /min ( 2.1 L/min) |
| Max Cycle Rate | Up to 325 cycles/min (typical across MSHP series) |
| Air Inlet Pressure | Up to 125 psi |
| Materials | Body / Wetted Parts: Stainless steel |
| Connection Ports |
Inlet: 3/8" NPT Outlet: 1/4" NPT |