pump controller Articles

  • Controlling the Flow Capacity of a Metering Pump

    Since a metering pump is usually a positive displacement pump there are two possible ways of controlling the flow capacity. The first one is by adjusting the volume of liquid displaced per stroke of the pump and the second is by adjusting the speed of the strokes. I. Stroke Length – control the displacement volume per stroke II. Speed of Strokes per minute Stroke Length ...


    By Aquflow

  • Dredge Pumping Systems Improve with VFD Motor Controls

    Submitted by Dave Stoltenberg, Dredge Rental Specialist, SRS Crisafulli Pumps and Systems recently published an article by Christopher Jaszczolt titled “VFDs Improve Motor and Pump Control”.   The article discussed current applications of variable frequency driven (VFD) motor controls as an excellent method ...


    By SRS Crisafulli, Inc.

  • Pump Station Biotrickling Filter Odor Control

    Odor Complaints Eliminated at Florida Lift StationEffective Control of Odor Surges to 800 ppmv H2S$50,000 Savings IntroductionNumerous cities and counties in central Florida are experiencing explosive growth. Examples abound in articles in Florida newspapers. Population is growing “by leaps and bounds” per the Seminole Chronicle (6/9/06) ...


    By Lantec Products, Inc.

  • Decision support system for main pumping station control, BOS Delfland

    The waterboard Delfland uses a DSS to automatically control the 7 pumping stations in its main canal system. Delfland manages a small part of the dutch watersystem in the south-west of the country. The area is mostly below sealevel and it is intensively used, for residential areas, greenhouses and industry. It is only 400 km/2, yet houses 1,6 million inhabitants, multiple cities among which the ...


    By IWA Publishing

  • Fuzzy maximum power extraction control for a photovoltaic water pumping system

    AC loads present a delicate matter for photovoltaic systems, and this is because of the photovoltaic panel's operating point, which moves randomly according to irradiance changes; in this case, almost of photovoltaic water pumping systems use a DC–DC converter to ensure either the maximum power extracted from PV panel or the load needs. For AC motor pumps, an inverter must follow this chopper. ...


    By Inderscience Publishers

  • More Power. More Control.

    Cuyahoga County pumps value to its community through greater control, standardization and technological advancements. Cuyahoga County is the most populous county in Ohio, with nearly 1.4 million residents. Part of Greater Cleveland, the county is named after a Native American word meaning "crooked river." With more than 63% of its total area made up of water, the county strives to foster strong ...


    By Gorman-Rupp Co.

  • Controlling the addition of Chlorine into a Process

    There are several methods for controlling the addition of chlorine into a process. These methods include flow proportional injection, ORP (oxidation reduction potential) or a residual chlorine analyzer. Each method measures a different process characteristic. Depending on the specific type of process being controlled, there generally is a best choice for controlling the injection of either ...


    By Walchem, Iwaki America Inc.

  • Control of Wastewater Treatment Plants

    Instrumentation, control and automation (ICA) of wastewater treatment systems and sewer networks have attracted much attention since the early 1970s. The developments during the last four decades in on-line instrumentation, computer technology, process understanding and subsequent model development, and control methods have been powerful driving forces for advanced control making ICA ever more ...


    By IWA Publishing

  • Principal Noise Pollution Control

    Sources of noise in industrial machinery and processes are : Rotors, Gears, Turbulent Fluid Flow, Impact Processes, Electrical Machines, Internal Combustion Engines, Pneumatic Equipment, Crushing, Blasting, Pumps and Compressors. The most desirable method of controlling a noise pollution is to minimize the noise at the source. This generally means modifying existing equipment and structures or ...

  • Principles of Solids Control

    Although the use of drilling fluids within the HDD / trenchless industry is still relatively new, recent trends suggest that this standard is shifting as solids control is one of the most important phases in the drilling process. This shift is due to a growing awareness that drilling fluid maintenance and disposal can become exponential problems as they are both harmful to the environment and ...


    By Elgin Separation Solutions

  • Industrial Noise Control Services

    Industrial Noise Control Studies Study different equipment noise and recommend suitable noise insulation. This include diesel generators, gas turbines, compressors, pumps, fans, chillers, factory machineries, traffic noise,...etc. Our evaluations and recommended solutions meet general guidelines and practices of international standards and nroise laboratories such as ...

  • The Nitty-Gritty of Dust Control

    Landfill owners and operators spend a lot of time focusing on containment: containment of waste; containment of leachate; containment of gas, litter, and odors. Quite often, containment of dust ranks near the bottom of the list. But that doesn’t lessen the importance of dust control. ...


    By Blue Ridge Services, Inc.

  • A visual tool to calculate optimal control strategy for non-identical pumps working in parallel, taking motor and VSD efficiencies into account

    A simple graphical tool was developed, that finds the optimal combination of pumps and their rotational speeds for all possible working points for a pump battery. The tool was integrated into EPANET as well as EPA SWMM simulation packages. The tool allows us to analyse and optimize operation non-identical parallel pumps with different minimum and maximum frequencies for all possible working ...


    By IWA Publishing

  • Balboa Island/Little Island Pump Station - Odor Control & Grease Cap Treatment - Case Study

    Program Objectives Reduce Water Usage of Spray System Eliminate Formation of Grease Cap Reduce H2S Odors Prevent Insect Nesting & Reproduction Reduce Pump Out Requirements Enhance Sewage Line Maintenance Reduce Direct & Municipal Costs Basic Description of Pump Station ...


    By EcoJump LLC

  • How can I finely control the vacuum applied by my vacuum pump or system?

    Some vacuum pumps or built in vacuum systems do not allow fine control over the vacuum applied. For rough work like vacuum filtration this is not always needed, but for more sensitive work, for example when using a rotary evaporator, application of the correct vacuum level is essential to smooth operation. The new ...


    By Camlab Limited

  • Case study - pumping in mines

    Location: Peru Year: 2011 Working context Pumps have been installed in Cerro Verde and Antamina mines in Peru for pumping tailings and material from in the process plant. The problem Both clients where looking for a pump able to handle slurry with high specific gravity and with solid concentration up to 70%. ...


    By Dragflow S.r.l.

  • White paper - Chemical feed control

    The controls, alarms and external contacts are shown on the drawings. As the amount of chemical needed to neutralize the wastewater varies exponentially from neutral pH 7, special consideration must be given to control overshooting the pH. Chemicals, especially viscous caustic soda, must be fully mixed in the compartment before more is added. Rather than modulating the pump settings, the pump is ...


    By W2 Systems

  • Case study - pumping in mines

    Location: Peru Year: 2011 Working context Pumps have been installed in Cerro Verde and Antamina mines in Peru for pumping tailings and material from in the process plant. The problem Both clients where looking for a pump able to handle slurry with high specific gravity and with solid concentration ...


    By Dragflow North America

  • VFD for pumping systems

    Pumping systems account for nearly 20% of the world's electrical energy usage. In some process plants, the VFD for pumps and fans together account for between 50% and 80% of the total electricity used. Very rarely have I come across pumps operating with fully open discharge valves. The same is the case for fans with dampers. ...


    By Variable Frequency Drives

  • Leakage control of multi-source water distribution system by network partition and optimal pump schedule in China

    The main aim of an optimal schedule of conventional multi-source water distribution system is to reduce the energy consumption rather than minimizing the network leakage. This research is on the premise of meeting water demand, pressure and water quality considering the states of valve opening and closing, the states of pump opening and closing, and the pump speed as solution space. The ...


    By IWA Publishing

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