centrifugal pump Articles

  • Submersible Pumps vs. Self-Priming Centrifugal Pumps

    When selecting a centrifugal pump for bypass work, the first consideration should be NPSHR by the pump. Neglecting the NPSHR of the pump is the single most common mistake when choosing a self-priming or priming assisted pump. A function of the pump design requires part of the 33.9 ft (14.7 in.) available as further defined in this article. A centrifugal, and in a way submersibles, require part ...


    By Griffin Dewatering

  • Separation principle of decanting centrifuge

    KOSUN DC series decanting centrifuge is used in separating suspension of solids phase with particle diameter(d≥2μm) for drilling mud and fluids handling. Ruggedly built for oilfield and industrial services, it is especially effective in environmentally sensitive areas. It delivers high fluid-recovery rates and ...


  • Drilling decanter centrifuge business in America

    KOSUN, as a professional oilfield solid control equipment manufacturer, has a pleasure of offering you drilling mud cleaners at reasonable prices. It also gives waste management equipment, such as vertical centrifuge, high G dryer and screw pump. A decanter centrifuge can make drilling cuttings or ...


  • Centrifuge Technology in Drilling Fluid Recycling

    Drilling fluid additives and the water that contains them are an essential part and expense of successfully completing a horizontal directional drilling (HDD) installation, and the longer the bore and larger the product being installed, the more drilling fluids cost. Therefore, it makes economic sense to recycle drilling fluids by removing cuttings and recirculating the cleaned ...


    By Elgin Separation Solutions

  • Maintenance of Oilfield Drilling Mud Decanter Centrifuge

    Decanter centrifuge is widely used in drilling mud separation to separate smaller solid particles after the equipment processing such as drilling mud shale shaker and drilling fluids mud cleaner or desander and desilter. Usually, decanter centrifuge is equipped with screw pumps or slurry pumps to feed drilling mud to ...


  • KOSUN Decanting Centrifuges Sent to South Asia

    Recently, three KOSUN DC355 decanting centrifuges  ordered by a famous South Asian oil company have successfully arrived at Shenzhen Port for shipment. This is the second time for the customer to buy solids ...


  • maintenance of the vibrator motor for KOSUN decanter centrifuge

    Solids control system is the indispensable sector in oil & gas drilling oeration, consists of drilling fluids circulating tank, drilling fluids purification equipment where shale shaker,vacuum degasser,desander, desilter,decanter centrifuge,centrifugal&nbs ...


  • The Versatility of Hydraulic Submersible Pumps

    Hydraulic submersible pumps offer flexibility and performance When determining a pump for an application, there are a number of factors to consider. Hydraulic submersible pumps are an option and give the added benefit of run dry capability, especially when electric powered pumps are of concern due to potential electrical hazards or other reasons, or diesel driven centrifugal pumps ...


    By Griffin Dewatering

  • What is a slurry pump

    Talking about slurry pump, we see slurry first then next is pump, so let’s start with slurry. Slurry is a kind of liquid with solids, mostly its specific gravities greater than 1. The solids size may vary from a few micrometers, often referred to as microns, up to hundreds of millimeters and the solids may settle below a ...


  • 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

  • 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

  • slurry pump impeller

    Impeller is a rotating component of a centrifugal pump, which transfers energy from the motor that drives the pump to the fluid being pumped by accelerating the fluid outwards from the center of rotation. ...


  • 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 ...

  • 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.

  • 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 ...

  • 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.

  • Peristaltic pumps for moving filtration water

    The Eversburg sewage treatment plant is designed to serve 250,000 population equivalents and is one of three plants operated by the city of Osnabrück in northern Germany. But in 2005, its actual load was closer to 309,000 population equivalents (COD 80 mg/l), pushing the nitrogen input level above the plant's capabilities. To deal with this situation, engineer Peter Sikora organized a team ...


    By ALLWEILER GmbH

  • Less and More : Why You Should Pump Slurries with a Peristaltic Pump

    LESS WATER Peristaltic Pumps Use Less Water Hose pumps can circulate slurry SGs of 1.6 to 1.8 or up to 80% solid content. The traditional centrifugal pump loses efficiency when the slurry SG reaches 1.3 or 30% solids. With this limitation, slurry pumps have significant process water demands : on a plant processing 70 tonnes of ore per hour, every time a hose pump replaces a ...

  • Pumps are the heart of heat-transfer plants

    Manufacturers in a variety of industries depend on heat-transfer plants to heat or cool their machines and apparatus. German firm heat11 GmbH & Co. KG specializes in heat-transfer plants of virtually all types. The chemical industry uses their installations for controlling the temperature of reactors and during the production of color pigments and liquid crystals. In the plastics industry, ...


    By ALLWEILER GmbH

  • Verderflex peristaltic pumps replaces mag drive pumps in water treatment

    Verderflex provided a cost effective solution to a Swiss airport that had been experiencing significant problems with their water softening treatment. The local water supply required treatment to prevent scaling in the pipework.  The Challenge The existing treatment system required a salt solution to be dosed from a storage tank close to the pumps ...

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