None that I can tell. The product that we are seeing in the Australian marketplace appears unchanged for a number of years, except that the model numbers change, and the product undergoes some purely cosmetic changes. Whilst the new range of energy efficient electric motors is an improvement, manufacturers of pumps appear to be downgrading the efficiency of the individual pump models. And whilst the innovation of new materials used in construction may mean a lighter product, the durability of the product is of a lesser nature.
Secondly, the quality of the raw materials being used in the manufacturing process, is in some instances, of a dubious nature, whilst testing metalurgically true to specification, in the completed product, displays characteristics heretofore unknown to metals of that type. With the seemingly global swing to third world countries as a source of cheap labour, the quality of product arriving in the marketplace is progressively getting worse.
~Kevin A, Service Manager and Sales, Ashfield, Australia
I think the increased use of advanced water treatment systems such as Microfiltration and Reverse Osmosis, has demanded the development of multistage centrifugal pumps capable of providing high pressure. Furthermore, desalination systems require special materials for pump housing and impeller that can withstand very high salinity.
~Rica S, Process Engineer, Sydney, Australia
All centrifugal pumps are designed and modeled in Solid Works, new inducers and volute styles have been introduced to lower NPSHR. Also new larger sizes have been introduced with a slide base for easy maintenance.
~Aaron S., Marketing/Sales, Santa Ana, CA