two-stage diaphragm pump Articles

  • 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 ...

  • What is the difference between Rotary Vane and Diaphragm vacuum pumps?

    Most laboratories will have a vacuum pump. They are widely used across labs of all disciplines for a range of tasks from basic filtrations or evacuating a desiccator right up to use with large equipment such as vacuum ovens or rotary evaporators. The two most common types are rotary vane or diaphragm pumps – but ...


    By Camlab Limited

  • Diaphragm pumps for the Royal Mint`s new effluent treatment plant

    SERFILCO's mission is to be a proactive partner for our customers and a leader within the industries we serve. To that end we continue to develop and manufacture state-of-the-art filtration, liquid handling and waste treatment equipment to help achieve the product integrity, quality and cost savings necessary for our customers to be competitive in the global marketplace. When the Royal Mint ...


    By Serfilco International Ltd

  • 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.

  • Pumping at Subzero Temperatures

    Pumping of cryogenic (low-temperature) products is important for many applications, especially in the field of liquefied natural gas (LNG). The Sulzer J-unit is a special sealing system for cryogenic pumps. It was invented more than 60 years ago. The evolution of the J-unit design since then has been impressive and has now resulted in a recently filed patent application by Sulzer. ...


    By Sulzer

  • 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 ...

  • 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 ...


    By NOV Mono - Mono Pumps Ltd

  • Verderflex Peristaltic Industrial Pumps excel in diverse applications

    Verderflex Industrial peristaltic pumps are extremely robust pumps, ideal for heavy duty operations on intermittent or continuous duty cycles. They are a simple to use, easy to control, versatile and reliable way to pump liquids. Verderflex Industrial pumps can be used in a broad range of applications: Anaerobic Digestion Sludge Transfer Verderflex pumps were specified due ...

  • 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 ...

  • Pump with 900 foot head (that has hi-pressure, hi-flow, and hi-head pumping capacity)

    GRIFFIN 3 STAGE JET PUMPS These pumps are capable of delivering fl ow over 1,400 gallons per minute and head conditions up to 900 feet. They come equipped with hand-operated diaphragm primers as standard but can be equipped for automatic priming. Griffi n jet ...


    By Griffin Dewatering

  • 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 ...

  • Mono nov dosing pumps offer the right mix for foundry systems

    Integrated Sand Systems Ltd of Walsall carried out extensive trials over a 12 month period before deciding to replace gear and diaphragm pumps, previously incorporated in its Temcon catalyst control system, with Mono progressing cavity pumps. The Temcon system is built into the company’s high speed continuous sand mixers, which blend sand with chemicals and resins, setting hard to form a mould ...


    By NOV Mono - Mono Pumps Ltd

  • Large Diameter Impellers Make Trash Pumps More Versatile

    The introduction of these impellers allow for a higher range of discharge pressure. Pumps are available in many types—diaphragm, positive displacement and progressive cavity—but the most common is a centrifugal pump. Centrifugal pumps have an impeller that spins, transferring energy to the fluid by centrifugal force and directing the water to the discharge point within the ...


    By Griffin Dewatering

  • 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 ...

  • 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

  • Peristaltic Pumps - A lot more than just heavy duty

    By design, the peristaltic pump is ideal for the dependable handling of abrasive, corrosive, viscous, high density and high solid content fluids. It thrives in those applications where other types of pump fail. Water and waste water industries, mining and chemical processing are all prime markets for this workhorse. But being equal to the tough demands of these applications is far from its only ...

  • Blue-White’s “Flex-Pro” Peristaltic Pumps in Partnership to “Save Water and Protect the Environment”

    Over the years, the Environmental Protection Agency (EPA) has offered voluntary partnership programs to address a wide variety of environmental issues by working collaboratively with companies, organizations, and communities.  There are now more than 13,000 firms and other organizations participating in EPA Partnership Programs according to the EPA website.   One of the more highly ...


  • Blue-White’s FLEX-PRO A4 Peristaltic Pump Emulates the Success of the FLEX-PRO A3

               FLEX-PRO A4 Case Study Facts Plant: Jones ferry WTP  -  Chapel Hill, NC Plant Operator: DM Objective:  Switch out the diaphragm pump to a peristaltic pump to create a smooth, consistent flow ...


  • An inflatable plug works better than bypass pumping when closing off a 60-inch penstock

    When Brian Simon, a project manager at Grace-Titan DVBE (based in Redding, California) first looked at the Potter Valley Bypass job it looked difficult, but straightforward. Grace-Titan was being asked to remove a section of the penstock that supplies Pacific Gas & Electric's (PGE) Potter Valley hydroelectric plant and install a Y-branch. But that meant that the five-foot diameter penstock ...


    By Petersen Products Company

  • The Generation of Pure Water

    As a world leading manufacturer of complex multi-port stainless steel diaphragm valves, GEMÜ has earned an excellent reputation in the biotech and pharmaceuticals’ markets. GEMÜ is now transferring the skills acquired in biotech and pharmaceutical applications, to water applications by designing and manufacturing plastic multi-port block valves. The space saving compact build, ...


    By Modern Pumping Today

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