70VS Variable Speed Pressure Boosters ... - Versamx.mx

70VS Variable Speed Pressure Boosters•Custom-engineered pumping systems•Serial Communications via most popular protocols•Control logic developed exclusively for pumping applications70VS Variable Speed Case StudyThe Wastewater Treatment Plant in Galesburg, IL chose the ITT treatment system as an economical way to reduce TotalSuspended Solids (TSS) concentrations, especially during high flow conditions when solids could wash out from the processes. Thewastewater treatment plant in Illinois utilizing a tertiary treatment package from ITT is reporting effluent concentrations of lessthan 5 mg/l.The Galesburg plant itself has an average design flow of 11 million gallons daily (MGD), and peak design flow of 28 MGD. The ITTpackage installed at this facility includes a DrumFilter and control system from Water & Wastewater (WWW); Flygt submersible liftstation pumps; and a triplex 70VS booster pump system with a Technologic controller and variable frequency drives (VFDs) fromITT’s Residential and Commercial Water (R&CW) division.During normal filtration, no energy whatsoever is consumed by the system. Effluent flow is polished by the DrumFilters afterleaving the final clarifiers with 17-micron filtering screen.The Flygt variable speed submersible lift station pumps sequence on and off to match effluent flow feeding the DrumFilter system.Only when a backwash cycle is initiated does the DrumFilter system use energy. The filtering process is not interrupted duringthe backwash cycle, which is when the 70VS system starts the lead pump by detecting a drop in the backwash line pressure.The system has the ability to sequence additionalpumps as required to meet system demand andmaintain the design pressure required to spray awaythe solids. The system in Galesburg was setup sothat the third pump in the sequence was designatedas a standby pump. The Technologic’s automaticalternation of the lead pump balances the wear oneach pump. In addition,the 70VS provides remote run and alarm statusindication to the WWW monitoring and controlsystem to ensure total system integration of theITT products.The 70VS system with Technologic controlsintegrates seamlessly with the DrumFilter to providean energy saving tertiary filtration solution. Benefitsof the 70VS system include, 1) energy savings bymost efficiently meeting system demand,2) avoidance of motor damaging and energywasting in-rush currents with the soft start capabilityof the VFDs, 3) precise pressure control with asingle system setpoint, and 4) reliable B&G pumpprotection algorithms.A B&G Booster Package provides pressurized water during the DrumFilterBackwash sequence.© Copyright © 2009 ITT CorporationPrinted in U.S.A. 6-09THE ITT ENGINEERED BLOCKS SYMBOL ANDENGINEERED FOR LIFE ARE REGISTEREDTRADEMARKS OF ITT MANUFACTURINGENTERPRISES, INC.ITT8200 N. Austin AvenueMorton Grove, IL 60053Phone: (847) 966-3700Fax: (847) 966-9052www.bellgossett.com