A Los Angeles-based manufacturer of water filtration systems has installed one of its self-cleaning systems at a 70-year-old company specializing in protective packaging materials for fresh fruits and vegetables. Forsta Filters manufactures water filtration systems used in industrial, municipal and irrigation applications.
Michelsen Packaging Co. in Yakima, Wash., had just
installed a 125 hp water-cooled air compressor that required cooling water in
order to prevent overheating. According to Michelsen's research and development
engineer, Carey Bruskland, the application required the company to cool the
heated water coming from the compressor through a set of heat exchangers. The
cooling water on the other side of the exchangers contained fine paper fibers
and biological growth, which thrived in the heat generated by the vacuum pumps.
Both the fibers and the bio-growth had to be removed to ensure that the heat
exchanger wouldn’t plug.
"We needed two high quality durable filter units
that would be self-cleaning and easy to maintain," Bruskland says.
"They needed to be made from noncorrosive materials to withstand harsh
chemicals and be able to supply the 100 gal/min flow to our heat exchangers
throughout the cleaning cycle.”
Bruskland and his team selected the Forsta A2-90 filter
model equipped with a100 µm stainless steel screen. The A2-90 would protect the
heat exchangers, which cool the water for the water-cooled air compressor. The
selection came following an analysis of Forsta’s technology, including system
integration, internal components and backwash mechanism.
Michelsen chose Forsta because the company provided,
"high quality units at a lower cost than the other manufacturers,"
Bruskland says. “We also really liked the fact that the filter operates on
inlet-water pressure alone and does not require an external source of water for
the very short backwash.
"This was our first filter unit of this type, so we
had many questions," Bruskland says. "The Forsta engineers were very
helpful and thorough as we were looking at the different types of filter units
and choosing the unit which best fit our needs." He says that Forsta
engineers “were always very courteous and professional. We were always able to
get in contact with them and they always answered our questions. They were very
helpful not only before we purchased the units but also as we were assembling
them. They followed up and contacted us after installation to make sure
everything was working properly."
Bruskland notes that he would recommend Forsta to other
companies with similar applications. For more information on Forsta
self-cleaning filters, go to www.forstafilters.com.
Filter Maker Keeps Eye on Application, Customer Care
January 18, 2012