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Today is a big day. We are about to complete our Pressure Booster Selection Procedure worksheet so we can select a pressure booster. But before we do that…
Read MoreIn our last blog we introduced the new HI Energy Rating System for clean water pumps. The HI Rating System not only helps engineers pick a more efficient pump, it also makes it easy for utilities to develop incentives that rewards owners for using HI Rated equipment. Several US utilities are already onboard…
Read MoreComparing pump efficiency just got a whole lot easier thanks to a new rating system developed by the Hydraulic Institute (HI). For the first time ever, pump specifiers or purchasers can go directly to an online tool where they can compare the numerical efficiency scores of any pump….
Read MoreApplying a single constant speed pump for each condenser in a chilled water application is a normal design for the HVAC engineer. Some chiller manufacturers suggest piping the pumps with a common header and activating each pump as the condensers are staged on. However, there is a hidden issue with this approach, which, if not addressed may cause major problems....
Read MoreWe recently introduced the part load efficiency value (PLEV) aspect of the Bell & Gossett online pump selection tool. PLEV for pumps is based on flow rate while the Integrated Part Load Value (IPLV) for chillers is based on load. This final segment on PLEV will look at the difference.
Let’s begin by examining....
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