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Multistage Ring Section Pump EHD/EVD

  • Contact Us

  • Eu-Flo Pump Industries Co Ltd
  • Pump Expert of European Standard
  • Tel: 021-64911960
  • Phone: 13391393652
  • Email: [email protected]
  • Address:Room 1506, 638 Heng Feng Road, Su He No.1 Mansion,200040.Shanghai,China

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EHD&EVD  type is the horizontal/Vertical multistage ring section pumps and high pressure pump. The impellers are stacked in single direction on the same pump shaft. The rotor is balanced by the specially designed balance drum device. The rotors are perfectly dynamically balanced and the maximum stages can be up to 16stages. EHD type horizontal ring section pump has stable performance and excellent quality,both EVD vertical ring section pump is space save. EHD/EVD type multistage pump is the ideal high pressure pumps for application.


  • 3D design used in the whole design process and CFD analysis and being embodied with knowledge and experience of the fluid experts in EU-Flo  Pump.
  • Back-to-back impeller stacking to automatically balance the axial hydraulic thrust.
  • Optional inducer stage with fine inducer impeller to allow very low NPSHr.
  • The suction nozzle and discharge nozzle can be horizontal, vertical, down, any position in times of 90 degree.
  • Optional shaft sealing for single mechanical seal, double mechanical seal, cartridge mechanical seal and soft packing meet API 682
  • Standard design for stuffing box cooling jacket allow the pump to transfer high temperature liquid.
  • Bearing bracket with cooling jacket or finned shape cooled by fan to ensure long bearing life and stable pump working.
  • Bearing lubrication is optional for grease, ring oiled, splashed systems or boosting systems.
  • Bearing type can be rolling element bearing and plain bearing. for heavy duty and high temperature
  • Full Range Pump to meet vary demand of you designed capacity and head.
  • Optimum hydraulics optimized by CFD analysis and the fluid experts from EU-Flo Pump
  • Low NPSHr and high efficiency.
  • 3D design to ensure nice performance and excellent construction, High Efficiencies and reduced energy consumption by designing the pump’s BEP to customer duty point
  • Many choices for material, cast iron, cast steel, all stainless steel and duplex stainless steel for your different application.
  • Wind performance range allow you to have a reasonable project design
  • Simple construction to minimize dimension and reduce cost and maintenance cost .
  • Absolutely dynamically balanced rotor prolong the lifetime and supply stable performance.
  • Heavy duty service design allow the pump meet your complicated service
  • Wearing ring material option for PTFE, Bronze, SS316L and duplex


  • boosting in General Industries of chemical process for hot oil and hot liquids, crude oil.
  • boiler water feeding
  • Food & beverage
  • Sewage Treatment Plant
  • Marine & offshore
  • Biofuels
  • Fertilizers
  • Power Plant
  • Desalination
  • Petrochemical processing
  • Clear and lightly contaminated liquids

Operation Range                                                                           

  • Capacity

up to 233.3L/s (840m3h), or as per any request.

  • Head

up to 2300m(7550ft), or as per any request.

  • Working temperature

up to 260°C

  • Design pressure

4.0Mpa/6.3Mpa/10.0Mpa/16Mpa/25Mpa/35Mpa or as per any request.

  • Dis Flange

up to 400mm or tailor design. Flange standard can be DIN, AS,ANSI ,JIS,GOST or other standard.