HYDROWATT AG

To produce top-quality hot rolled products hydro mechanical descaling is essential and the trend toward high pressure descaling using water at pressures of 200 – 400 bar has now become the standard.

Most modern descaling systems recycle the descale water and so they encounter problems due to the accumulation of residual iron oxide particles in the medium. Even with the best filtration, using settlement basins and sand filters, some residue remains in the process water. This residue presents quite a challenge for conventional high pressure pumps, subjecting their packings to significant wear.

Forging and extrusion presses using water hydraulics have significant technical advantages over those operating on oil: environment-friendly, no rebuild of oil contaminated floors, no fire protection devices necessary, faster and more accurate positioning, etc.

Besides supplying new systems we also undertake upgrades on existing water supply systems for presses.

In the upgrade market the HYDROWATT, with its compact radial piston design, is the ideal replacement pump. With an effective displacement of up to 800 litre/min at 320 bar and 1800 rpm it is exceptionally competitive.

Further Applications

• Hydraulic roll balancing in rolling mills
• Roll cleaning using demineralised water (e.g. as on hot-dip galvanising line)
• Hydraulic drives
• Hydroforming
• Stretch forming of pressure tanks
• High altitude supply of drinking water for restaurants in the mountains
• IBC and barrel cleaning
• Spray coating in the paper industry with calcium-carbonate suspension (up to 600 gm/litre solid content)
• High pressure cleaning using abrasive fluids
• Pressure source for fuel injector testing and calibration (injection nozzles)
• Methanol and mono ethylene glycol (MEG) injection, offshore industry