PRO2AIR Pre-PUR® membrane tube diffuser made from polyurethane for increased safety and lower operating costs
NORRES, the Gelsenkirchen based hose manufacturer, recently unveiled an innovative Pre-PUR® membrane tube diffuser made from premium polyurethane. All the other tube diffusers currently available in the market often have a shorter lifetime and are much more sensitive to dynamic loads owing to their inferior raw materials. In many cases, their mechanical properties deteriorate during the course of their service life, leading to premature damage such as cracks in the diffuser membrane. Some of these diffusers additionally suffer from a significant increase in pressure loss as they grow older because the softener leaches out. With the new PRO2AIR Pre-PUR® made from premium polyurethane this is no longer possible: it is absolutely free of softeners and impresses with its extreme flexibility and mechanical strength under dynamic loads.
The innovative PRO2AIR Pre-PUR® membrane tube diffuser made from premium polyurethane was recently added to the portfolio of the NORRES Schlauchtechnik Environmental Solutions Business Unit. It is used for intermittent, fine-bubble, compressed air aeration (nitrification / denitrification) as well as continuous aeration. The membrane material exhibits very good resistance to municipal wastewater according to the latest version of the DWA-M 115 Advisory Leaflet. Thanks to the
Pre-PUR® premium polyurethane, the new membrane tube diffuser is characterised by high tensile strength and tear resistance, and is also remarkably durable and robust. Its extreme flexibility and mechanical strength under dynamic loads mean increased reliability, an extended service life and hence lower operating costs. Other tube diffusers currently available in the market tend to form a kink edge in intermittent operation; the resulting permanent kinking can be a primary cause of damage in the long term. If damage of this kind occurs, sludge can get into the system; significantly more air escapes from a defective or ruptured diffuser than from an intact one. There is a rapid decrease in oxygenation, leading to reduced oxygen transfer efficiency and impacting the diffuser’s reliability.
[..] You can find the complette Press Release at http://www.norres-aeration.com/hm/06/040102.