diaphragm metering pump Articles

  • Qdos metering pumps usurp diaphragm models

    The revolutionary new Qdos 30 metering pump from Watson-Marlow Fluid Technology Group is proving a resounding success in Barrie, Canada. Located in southern Ontario on the western shore of Lake Simcoe, Barrie is a modestly sized city (135,000 residents) but one with a track record for quality when it comes to its potable water supply. Here, the Water Operations Branch of the Corporation of the ...

  • Verderflex Dura Hose Pump Replaces Troubled Diaphragm Metering Pump

    The Challenge A water treatment plant in the US state of Georgia uses several wells to provide its residents and industries with fresh water. Each well site had to be equipped with the appropriate treatment equipment to ensure that the water meets and exceeds regulatory requirements. One such well site used a diaphragm-style reciprocating metering pump to pump lime slurry directly ...

  • Four Differentiating Facts – Solenoid Vs Hydraulic Diaphragm Metering Pumps

    Cost of Ownership: While it is true that solenoid pumps are often less than half the purchase price of hydraulic diaphragm metering pumps, the total cost of ownership tells a completely different story. Hydraulic diaphragm metering pumps last over 10-15 years in the field with almost no maintenance. Solenoid pumps usually need service and replacement diaphragms every 6-9 months depending upon ...


  • Qdos metering pumps usurp diaphragm models in potable water application

    The revolutionary new Qdos 30 metering pump from Watson-Marlow Fluid Technology Group is proving a resounding success in Barrie, Canada. Located in southern Ontario on the western shore of Lake Simcoe, Barrie is a modestly sized city (135,000 residents) but one with a track record for quality when it comes to its potable water supply. Here, the Water Operations Branch of the Corporation of the ...

  • Is your metering diaphragm pump having self-priming problems?

    Dosing sodium hypochlorite, fluoride, and alum There is a simple and 100% interchangeable alternative to solve your problems. Same footprint as competing diaphragm pumps. All ancillaries reused Mounting shelf Platform All suction and discharge piping Appurtenances like gauges and valves ...

  • 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

  • Hydroflo diaphragm pumps help reduce boiler corrosion and maintenance costs

    ABTCo, located in Alpena, Michigan, is a decorative wood paneling producer using three boilers to generate 7 MW of electricity – half the power needed in the plant plus steam for pulp processing. As in many boiler operations, the main enemy is corrosion, which can destroy system components and lead to boiler failure. Although internal boiler surfaces are protected by a film of magnetic ...


    By Aquflow

  • Qdos metering pumps selected by Russian automotive plant

    After a comprehensive evaluation and trial period, the Russian plant of steel wheel manufacturer, Mefro Wheels, has opted to use the latest Qdos 30 metering pumps from Watson-Marlow Fluid Technology Group at its facility in Togliatti. Selected ahead of diaphragm metering pumps, the Qdos 30 pumps have been fully integrated into a complex process control system at the plant’s ...

  • Chemical metering pumps solve CP&L’s demineralization problem

    In order to solve a plugging problem in injection system of its coal-fired Lee plan in Goldsboro, NC, Carolina Power & Light Co. replaced the system with two chemical metering pumps. The two chemical metering pumps, made by Hydroflo Corp., have withstood continuous exposure to regenerating chemicals for almost ten years and have required minimal maintenance to the utility. Lee ...


    By Aquflow

  • Sizing and Selecting the Proper Metering Pump: Part 1 of 2

    A typical agriculture or process application can consume large amounts of chemicals during daily operations. While the volumes may be large, though, they must also be very precise, with exact amounts delivered according to strict injection schedules. The pressures—from very high to very low—that the chemicals are injected at must also be governed precisely. This demand for ...


    By Modern Pumping Today

  • AquFlow (formerly Hydroflo) metering pump helps make fireproofing system a success

    Problem: Part of developing innovative technology is making its application as easy for the user as possible. So when W.R.Grace&Co.-Conn. went to market with an accelerator for its Monokote family of fireproofing products, a key priority was making the system user-friendly. The accelerator can save users money because it makes the product more efficient to apply and increases ...


    By Aquflow

  • What You Need to Know about Electronic Automation of Hydraulically-operated, Diaphragm-actuated Control Valves

    Hydraulically controlled, diaphragm-actuated control valves are the mainstay of the waterworks industry to control pressure, flow, level, pump control, and at times to meter. These automatic control valves are controlled by pilots to do specific tasks and are mainly single-set-point systems. With the need to remotely actuate and control the valves and the applications becoming more complex, ...


    By IWA Publishing

  • Casella intrinsically safe TUFF personal air sampling pump and dBadge sound level meter are a hit down under with Australian department of defence

    Following a competitive tender process, the Australian Department of Defence has taken delivery of 180 TUFF personal air sampling pumps and 180 CEL-350 dBadge personal noise dosimeters from Casella CEL (www.casellameasurement.com; 01234 844100), leading global specialist in industrial hygiene and occupational health monitoring equipment. Ronald Azar, ...


    By Casella

  • Future Proofing and Pumping Technology

    Untitled Document Now that the dust of the AMP 4 round has settled, the UK 's water and sewerage companies are underway with their plans to maintain, upgrade and develop their asset base over ...

  • 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.

  • Picking the Perfect Pump

    By John Amundsen, District Manager The Gorman–Rupp Company Pumps and pumping systems are like unsung heroes of modern society – quickly and quietly transporting vital water supplies, chemicals and waste to and from locations, which rely upon their consistent, reliable operation. In fact, pumps and pumping systems are one of those entities that aren't ...


    By Gorman-Rupp Co.

  • Replacement Fill Control Valves with Electronic Flow and Metering Improve Pressure, Stop Leakage and Prevent Valve Failures

    The City of Modesto, California is situated 90 miles east of San Francisco and has approximately 200,000 residents relying on 200,000 of gallons of water a day. The City needed to upgrade three water storage tanks that hold approximately 750,000 gallons each. After years of using motor operated valves to fill water storage tanks, the city recognized that there were just too many problems. ...


    By Singer Valve Inc.

  • Magnetic driven pumps in Molten sulphur service case study

    MD51EFDKR-3U88/06C with NORD SK12XZ-140TC and Reliance 2 HP, TEFC-XE motor Pumping Molten Sulphur is most challenging. Sulphur temperatures must be controlled within a 120-155o C range. Outside this temperature sulphur solidifies. Sulphur has a distinct odour and is highly corrosive in the presence of moisture. Where leakage from common packed style pumps was unacceptable, a ROTAN ...


    By DESMI A/S

  • Watson-Marlow peristaltic pumps in breakthrough application - Case Study

    South West Water is using a peristaltic pump from Watson-Marlow Fluid Technology Group for dosing coagulant into raw reservoir water for purification purposes. It is thought to be the first time peristaltic technology has been used on a coagulant application, certainly within the southwest region. Originally the plant, near Falmouth in Cornwall , employed two conventional ...

  • Whole Life Costs and pumping Technology – Peristaltics Increasingly Out on Top

    Untitled Document Whole life costs are playing an ever-more important role in pump selection by the water and wastewater industry. Interestingly, energy use is no longer the ...

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