The UV system with unique Crossfire™ technology

The Upstream™ System builds on the revolutionary design available in the Hallett™ ultra violet water treatment range. Cutting edge Crossfire technology operates differently from conventional UV treatment systems using a fail safe process that removes the risk associated with conventional UV systems - ensuring pure, safe water always.

The Upstream™ ultra violet systems redefine the standard for ultra violet water purification. The systems unique design allows consistent delivery of the highest possible UV dose from the proprietary high-output lamps.

While the Upstream™ is not certified to Class A standards it has been laboratory tested to 40mJ/cm2 dose at end of lamp life. All tests have been carried out at end of lamp life and at both 75% AND 50% UV transmittance.

The latest features to be included in the Upstream™ range include an automatic purge valve that ensures no fouling in low- or no-flow conditions, automatic problem diagnoses and recording of events, front easy opening housing built of stainless steel, aluminium and impact resistant ABS plastic.

There are six new models each based on required water flow rates and source water quality.

• The Upstream™ 10-75 is designed to disinfect water at a flow rate of 10gpm (38Lpm) where the source water has a UV transmittance of at least 75%.
• The Upstream™ 10-50 is designed to disinfect water at a flow rate of 10gpm (38Lpm) where the source water has a UV transmittance of at least 50%.
• The Upstream™ 15-75 is designed to disinfect water at a flow rate of 15gpm (57Lpm) where the source water has a UV transmittance of at least 75%.
• The Upstream™ 15-50 is designed to disinfect water at a flow rate of 15gpm (57Lpm) where the source water has a UV transmittance of at least 50%.
• The Upstream™ 30-75 is designed to disinfect water at a flow rate of 30gpm (113Lpm) where the source water has a UV transmittance of at least 75%.
• The Upstream™ 30-75 1.5” is designed to disinfect water at a flow rate of 30gpm (113Lpm) where the source water has a UV transmittance of at least 75%.

Full technical specifications are available under the headings alongside.

These new units open up the ability to disinfect water from a range of different sources, from deep wells to recycled grey water.