High-pressure dust suppression pump
A pump producing the pressure a misting or spray-bar system needs to break water into droplets fine enough to bind dust. Specified in bar at the nozzle, not in flow.
Features
- Droplet size, not water volume, is what captures dust, and droplet size comes from nozzle pressure — so pressure is the specification.
- Misting systems commonly need 40 to 70 bar, which puts this in positive-displacement plunger pump territory rather than centrifugal.
- Water quality decides nozzle life: fines and scale block fine nozzles quickly, so filtration ahead of the pump is mandatory.
- Flow is low, and total water use is usually far below a conventional spray bar for the same dust reduction.
- Freezing is the winter failure mode, so drain-down or trace heating is part of the installation.
- Running against blocked nozzles raises pressure fast, so a relief valve set correctly is not optional.
Specifications
| Figure | Typical range | Unit | Why it matters |
|---|---|---|---|
| Operating pressure | 40 - 70 | bar | Sets droplet size and therefore dust capture. |
| Flow | 5 - 60 | l/min | Low by design; volume is not what captures dust. |
| Required inlet filtration | 50 - 100 | µm | Fine nozzles block without it. |
| Relief valve setting | set above operating pressure | bar | Protects the pump against blocked nozzles. |
| Drive power | 1.5 - 15 | kW | Sizes the supply or engine. |