May 17, 2010
DELAVAN, WI — May 17, 2010 — To complement its successful line of BERKELEY® submersible turbine pumps, Pentair Flow Technologies is introducing Hard Chrome Shafts for the BERKELEY 6T and 7T models. The Hard Chrome Shafts are an optional upgrade from standard stainless steel shafts, and are specifically designed to perform in abrasive well conditions.


50-Hour Sand Slurry Tests

Corrosive, ultra-fine silt can significantly reduce the service life of submersible pumps, the results of which can be replicated in testing labs. “In 50-hour sand slurry tests, our Hard Chrome Shafts consistently outperform traditional stainless steel” said Jim Hughes, Vertical Marketing Manager for Pentair Flow Technologies. “BERKELEY Hard Chrome Shafts have a low coefficient of friction and are plated with .006” chrome, at a 65-79 Rockwell Hardness C, making them significantly harder than stainless steel. This gives them excellent resistance against the wearing, pitting and grooving that you often see when stainless steel shafts are exposed to well water with high concentrations of sand.” And excellent resistance means a longer service life, improved performance, and less down-time in the field.
BERKELEY 6T and 7T submersible turbines with optional Hard Chrome Shafts are available through a network of more than 5,000 authorized dealers throughout North America. More information on the hard chrome shafts, including where to buy, is available at
BERKELEY manufactures a diverse line of high-performance pumps and motors for use in the industrial, commercial & agricultural markets. BERKELEY was founded in 1937, and is located in Delavan, Wisconsin. For more information, visit BERKELEY is a part of Pentair Flow Technologies, a division of Pentair, Inc.


About Pentair, Inc.

Pentair ( (NYSE:PNR) is a global diversified industrial company headquartered in Minneapolis, Minnesota. Its Water Group is a global leader in providing innovative products and systems used worldwide in the movement, treatment, storage and enjoyment of water. Pentair's Technical Products Group is a leader in the global enclosures and thermal management markets, designing and manufacturing thermal management products and standard, modified, and custom enclosures that protect sensitive electronics and the people that use them. With 2009 revenues of $2.7 billion, Pentair employs approximately 13,150 people worldwide.
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