Performance Testing

Site Specific Solutions For A World Of Grit Problems

Hydro International has thousands of products installed throughout the world and hundreds of Grit Kings in the United States alone. When it comes to successful grit removal, Hydro International is the industry leader.

Simply said: We Know Grit.

Laboratory Testing

Utilizing state-of-the-art laboratory facilities in the US and UK, Hydro International can perform grit testing under controlled conditions to produce accurate results for the selected site.

Using a grit sample from the project location, Hydro International's engineers can perform a particle size analysis. A sand blend can be synthesized and fed into the Grit King under a range of flow conditions to define the performance envelope for a particular application.

Performance

The Grit King is typically sized for the following:

• Removal Efficiency - 95% of particles equal to or greater than 100 or 150 microns at the design flow rate
• Headloss - typically less than 12 inches at peak flow and less than 6 inches at average daily flow
• Moisture and Organic Contents - less than 30% and less than 5% respectively when used with a grit classification unit
• Flow Range - Grit King systems have been designed for flow rates from 0.25 MGD up to 135 MGD
• Flow Variations - Turndown ratios for a standard design unit are 4:1 from peak to average flow Note: ratios in excess of 15:1 can be accommodated
• Underflow Rate - variable, but typically 5 to 10% of design flow