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Multi-ESD 35

 


Multi-ESD 35

Variable-speed, multi-stage, centrifugal electric pump in a vertical mono-block unit, controlled by the ESPA ESD frequency inverter.

Designed for pressurizing of homes, small irrigation systems and clean water pumping applications.

Designed to work in parallel on multiple devices, it is an optimized solution for booster sets, especially recommended for potable water applications.

The pressure reading is taken in real time to adapt the engine's revolutions and adjust the flow provided to the facility's demand. This achieves greater comfort for the user, by ensuring a constant water supply pressure. The reduction of the engine frequency also implies a significant energy saving and better efficiency of the facility.

Their system of suction and discharge flanges on different planes makes them easy to install and service, while providing easy access to the valve and sensor units.

They are particularly recommended for pressurisation at constant pressure.

 


Series features Multi-ESD 35:

  • Equipment
  • Check valve: No
  • Counter flange: Included
  • Draining plug: Yes
  • Fittings: Not included
  • Support base: Included
  • Electrical characteristics
  • Electrical isolation: F Class
  • Motor speed operation: Variable Speed
  • Motor type: Asynchronous
  • Protection rating: IP44
  • Regulation: Electronics
  • Reset: Automatic
  • Service factor: S1
  • Service type: Continuous
  • Manufacturing characteristics
  • Discharge connection type: Flange
  • Discharge diameter: 1 1/4" G
  • Impeller type: Closed
  • Motor cooling: Fan
  • Stages: Multi stage centrifugal pump
  • Suction connection type: Flange
  • Suction diameter: 1 1/2" G
  • Tightness by: Mechanical Seal
  • Materials
  • Diffuser: PPO + 30% GF // PPE + 30 GF -ACS-
  • Discharge body: Cast GG0
  • Flanges: Cast GG50
  • Gaskets: NBR/EPDM
  • Impeller/s: Stainless steel AISI 304
  • Mechanical seal: Aluminium-Graphite
  • Mechanical seal bracket: Cast GG0
  • Motor casing: Aluminium
  • Nuts and bolts: Stainless steel AISI 304
  • Outer pump body: Stainless steel AISI 304
  • Pump shaft: 3-4 Stainless Steel (AISI 420) / 7-6 Stainless Steel (AISI 303)
  • Suction body: Cast GG0
  • Support base material: Grey Steel Painted Cast
  • Usage limits
  • Liquid temperature (ºC): Min: 4 - Max: 35
  • Maximum no. of motor start-ups (start-ups/minute): 0,50


Applications

Primary sector services

Multi-ESD 35

 
 

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