solar-operated pump Articles

  • Pump Protection - unattended operation in sludge pumping

    Pulsar's 500 series non-invasive flow switches are used to great effect in this application, protecting sludge pumps and allowing unattended operation. Pulsar’s Pulsarguard 500 units are used by Whale Tankers to ensure that their specialist positive displacement pumps never run dry. By employing the Pulsarguard unit, staff are able to allow the pumps to operate unattended, confident that there ...

  • Flawless operation with the merlin pump from mono nov

    The Merlin progressing cavity pump underwent rigorous tests, alongside air diaphragm, gear and lobe pumps, toensure its suitability for the duty. The low speed Merlin pump has a gentle conveying action to ensure the integrity of the shear sensitive PVC coating. Vigorous action of the gear pumps created too much heat causing the PVC to solidify, and the air diaphragm pumps proved to be very energy ...

  • Elements for Effective Management of Operating Pump & Treat Systems

    This fact sheet summarizes key aspects of effective management for operating pump and treat (P&T) systems based on lessons learned from conducting optimization evaluations at 20 Superfund-financed P&T systems. The lessons learned, however, are relevant to almost any P&T system. Therefore, the document may serve as a resource for managers, contractors, or regulators of any P&T system, whether or ...

  • Pump it up

    Aligning itself with a major equipment supplier and dealer helps the company access the tools and expertise it needs without risking too much capital. Aquatech is the distributor for Godwin Pumps of America in Ontario, Nunavut, Newfoundland and Eastern Labrador, all resource-rich territories. A recent purchase of Godwin by ITT Corporation has expanded the lineup of mine sector pumps. The company ...


    By Aquatech Dewatering Company

  • Solar water pumps for the uganda orphanages case study

    Solar Water Pumps for two Ugandan orphanages  The Challenge ...


    By SCL Water

  • Syringe Pumps vs Peristaltic Pumps - Case Study

    Introduction Different applications require a pump, among all the options peristaltic and syringe pumps, are the most suitable. However, selection of the best is always a disjunctive. In general terms, laboratory and industrial process use peristaltic pumps. A user needs to know more about the systems and proper comparison of these technologies. In some cases is difficult to understand ...


    By Chemyx Inc

  • Hand-pump subsurface arsenic removal: the effect of groundwater conditions and intermittent operation

    Hand-pump subsurface arsenic removal (SAR) has been investigated in rural Bangladesh with different groundwater conditions and intermittent operation modes. Multiple injection-abstraction cycles were performed after injection of 1 m3 of aerated water. From these experiments it can be concluded that hand-pump SAR, in the traditional injection-abstraction design, does not provide drinking water ...


    By IWA Publishing

  • Pumps for the Booming FPSO Sector

    In the last few years, several new offshore oil fields have been discovered. The current findings from Petrobras and other companies in the pre-salt province, located in the Brazilian continental shelf, suggest reserves of over 50 billion barrels of oil. Extracting the pre-salt oil is challenging and done increasingly with floating production storage and offloading units (FPSOs). Sulzer offers a ...


    By Sulzer Management Ltd

  • 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

  • +30 Years of Pump Deliveries

    Zwets was established in 1953 and supplies pumps and valves for in-land shipping. Zwets is part of the SKB Group and is situated in Werkendam, the Netherlands. DESMI Pumps are used for the following applications: Ballast Cooling Pre-Lubrication ...


    By DESMI A/S

  • Pump Performance Checklist

    Keeping your pump in shape will help reduce costs and boost profits! Cut fuel consumption, reduce replacement parts costs and minimize pumping time on every job! A PUMP THAT LETS YOU DOWN when you need it most causes obvious losses of time and money. Not so obvious, but every bit as costly, are losses you can incur with pumps that operate at less-than-peak efficiency. A pump ...


    By Gorman-Rupp Co.

  • Case Study - Pumping inerts

    Location: Spain Year: 2009 Working Context description In northern Spain the high speed railway system is developing fast. Due to the conformation of the ground the project involves the construction of bridges and tunnels. Material extracted during tunnel excavation is recovered in treatment plant to be further processed. The ...


    By Dragflow S.r.l.

  • Pump Maintenance Know-How

    It’s no secret that a pump that runs at peak efficiency uses less fuel, experiences less downtime and costs less to operate. The time you spend maintaining your pump is actually an investment in its lifetime performance and value. In fact, there are many ways that a diligently maintained pump can reduce your costs, while increasing efficiency. For instance, by ensuring your pump investment ...


    By Gorman-Rupp Co.

  • Case study - pumping inerts

    Location: Spain Year: 2009 Working Context description In northern Spain the high speed railway system is developing fast. Due to the conformation of the ground the project involves the construction of bridges and tunnels. Material extracted during tunnel excavation is recovered in treatment plant to be further processed. ...


    By Dragflow North America

  • Horsepower on the pump curve

    Now that the head capacity relationship along the X and Y axes of the pump curve has been established in Part 1 of this series, the pump curve can be used to determine the amount of horsepower required to meet the head and capacity requirements for the job. Horsepower is a unit of power equal to 550 foot pounds per second or 746 watts. Water horsepower is the minimum power ...

  • The Alternative to Pump and Treat

    Sometimes, an important technological advance begins with a small step – back! Such is the case with remediation of hydrocarbons from groundwater utilizing existing recovery and monitoring wells. For the past few years, state government has based decisions on the amount of clean up that they require by the risk posed to the environment. Risk Based Corrective Action, commonly called 'Rebecca' ...


    By Abanaki Corporation

  • Multiple Pump Systems

    Multiple Pumps in Different Locations with Cycle Stop Valves 500 GPM and Multi-pump Video http://www.cyclestopvalves.com/video/csv-dsl.wmv Systems with two or more pumps in different locations can be controlled with Cycle Stop Valves. These are ways of controlling multiple pumps that can be done at the ...


    By Cycle Stop Valves, Inc.

  • Asphalt pump installation notes

    Asphalt pump installation notes Asphalt heat pump is according to certain way and ...


  • Understanding Pump Cavitation

    Cavitation is a major problem in the chemical industry because it affects a basic tool, the centrifugal pump. A sudden increase in the velocity of the pumped liquid reduces the inlet pressure, sometimes below the vapor pressure.The result is formation of gas and bubbles. Detecting the signs of cavitation, and correctly identifying and understanding the type of cavitation present, can help an ...

  • Strengthen the maintenance of slurry pump

    Adjust the gap between slurry pump impeller and liner and plate. The gap had been adjusted before out factory, but after working for a time, due to the high-pressure of volute liner and low-pressure of suction, caused the slurry leakage through the impeller gap, inevitably lead to the impeller and plate or volute liner seal segment ...


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