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  • Eu-Flo Pump Industries Co Ltd
  • Pump Expert of European Standard
  • Tel: 021-64911960
  • Phone: 13391393652
  • Email: info@cnwaterpumps.com
  • Address:Room 1506, 638 Heng Feng Road, Su He No.1 Mansion,200040.Shanghai,China
  • The way Analysis of axial flow pump vibration

  • March 13,2019

    1. hand rotation Difficulty: Pump shaft bending, bearing wear, pump unit non concentric, impeller touch pump shell.

    Elimination measures: Straightening pump shaft, adjustment or replacement of bearings, re-Alignment , re-adjustment gap.

    1. Pump shaft Swing degree large: bearing and shaft neck wear or gap is too large.

    Elimination measures: Repair the shaft neck, adjust or replace the bearing.

    1. Hydraulic unbalance: impeller unbalance, centrifugal pump individual vane groove blockage or damage.

    Elimination measures: Re-calibration of the impeller static balance and dynamic balance, elimination of blockage, repair or replacement of the impeller.

    1. Axial flow pump shaft power is too large: the water level of the inlet pool is too low, the impeller submerged depth is not enough, the clutter winding impeller, pump cavitation damage degree is different, impeller defect.

    Elimination measures: Raise the water level of the inlet pool, reduce the installation elevation of the pump to eliminate clutter, and set up a bar grille, repair or replace the impeller.

    1. Mounting base vibration: Poor foundation stiffness or loosening or resonance of bottom angle screws.

    Elimination measures: Reinforcement of the foundation, tightening the The anchor

    1. Centrifugal pump unit efficiency decreased sharply or the efficiency of axial flow pump unit decreased slightly, accompanied by cavitation noise.

    Elimination measures: Change the speed of the pump, avoid the resonance area, find out the cause of cavitation, take measures to eliminate cavitation.

    1. Pump inlet and outlet pipeline Support force is relatively large.
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  • EU-Flo Pump Material Combination

  • January 21,2019

  • Part DescriptionMaterial Combination
    Cast IronDuctile IronWCB1.43081.4408DuplexSuper DuplexBronze
    CasingCast IronDuctile IronWCB1.43081.44081.44701.4410Bronze
    impellerCast IronDuctile IronWCB1.43081.44081.44701.4410Bronze
    ShaftSS 420SS304 DuplexSuper Duplex
    Seal housingCast IronDuctile IronWCB1.43081.44081.44701.4410Bronze
    Stationary RingWCB1.44701.44081.44101.4410
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  • Eu-Flo Pump Developed New Model Liquid Gas Mixture Vortex Pump

  • January 18,2019

  • EQYB is one Magnetic drive and Vortex pump application for Gas-Liquid Mixture, the pump is basing on many years experience of the company produce Vortex Pump and improved the design. The pump adopts magnetic transmission structure, non shaft sealing, to ensure the pump no leakage when transporting liquids containing gas , after the company’s R &D team combined with the Scientific research personnel in Colleges and Universities to developed the new model that can No load, dry grinding, high temperature resistance, energy saving and environmental protection,  to turn over a new page of the history that  Magnetic drive pump can’t runing non-load. after application of Through use of a number of customers proved that the pump not only has the characteristics of small capacity with high head, but also has the advantage of magnetic driven pump without leakage, therefore it is favored by many end users. the Pump wet parts are stainless steel or other metal materials, can be non-leakage to transport flammable, explosive, poison and other dangerous liquids, precious liquids, refrigerants or high-temperature liquids, low-viscosity liquids, corrosive liquids and harsh operation and liquid containing gases, liquid gas, liquid ammonia and other easy to gasification liquid transmission. In addition, compared with the canned pump, canned pump beside to the realization of our special functions, in small capacity application we have a very special advantage. Many customer feedback, to use of our EQYB magnetic driven pump to solve for their difficult that previous canned pump can’t for of high head with small capacity. by the other hand with a smaller power and energy saving, simple and convenient operation and maintenance, occupy smaller space, long service life, greatly reducing the operating costs. it can be fully replaceable for small capacity’s canned pump applications.

    Flange Available for PN40,PN63, ANSI CL300,CL600

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