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Wilo-Zeox FIRST H | Wilo
Your advantages
Wilo-Zeox FIRST H

Your advantages

  • Extremely efficient hydraulics and highly-efficient IE3 motor with standard-mounted PTC sensor
  • Pump set standard mounted with rigid coupling between motor and hydraulics and with mechanical seal
  • Standard-mounted bypass flushing device guarantees a long service life for the mechanical seal
  • Clever flange positioning and stuffing box gland upon request
  • Bronze impellers upon request for high reliability
Series description
Wilo-Zeox FIRST H


Non self-priming, highly efficient high-pressure multistage centrifugal pump


  • Professional irrigation/agriculture
  • Water supply/pressure boosting
  • Fire fighting
  • Heating, air-conditioning, cooling


  • Standard-equipped with highly efficient IE3 motor
  • Flushing device via bypass line for long service life
  • Stuffing box packing on request, can be replaced without removing the pump thanks to the exclusive "Twinner System" design.



Zeox FIRST V9004/A-75-2-S20-S6D6/B


Non-self-priming, multistage high-pressure multistage centrifugal pump in sectional construction

V or H

Vertical or horizontal installation


Volume flow Q in m3/h


Number of impellers


Impeller type (V design)


Motor power (in kW)


2-pole motor


Design variants: No specification = standard design, impellers made of bronze: L1, stuffing box packing: S20


Variants with other flange and shaft alignments: No specification = standard alignment, SXDX


Index of technical development

Technical data

  • Mains connection 3~400 V, 50 Hz
  • Max. inlet pressure: 6 bar for vertical design, 16 bar for horizontal design
  • Max. fluid temperature range from -5 °C to +90 °C
  • Max. ambient temperature range from -10 °C to +40 °C
  • Max. operating pressure: 27 bar for vertical design, 55 bar for horizontal design DN 80 and 50 bar for horizontal design DN 100
  • Protection class: IP 55
  • Connections on pressure and suction side: DN 80 and DN 100 for vertical design,DN 65, DN 80, DN 100, DN 150 for horizontal design


  • Pump housing and coupling made of grey cast iron with high quality paintwork for high resistance to corrosion
  • Baseplate and motor support made of steel with high quality paintwork for high resistance to corrosion
  • Stage housing and guide vane apparatus made of grey cast iron and impellers made of grey cast iron with cataphoretic coating
  • Stage housing gaskets made of NBR
  • Plain bearing made of bronze
  • Shaft made of carbon steel or stainless steel
  • Rotating and stationary rings of the mechanical seal: Tungsten carbide/carbon
  • Mechanical gaskets made of NBR / PTFE
  • PTFE seals

Delivery state

  • Horizontal pump system with motor, coupling, baseplate and pump or
  • vertical pump system with motor, coupling and pump
  • Installation and operating instructions

Installation and operating instructions

Wilo-Zeox FIRST

Article Number 4192053
Edition 1411
Page format A4
Number of pages 29
PDF (1 MB)

General overview (Documents)

General overview 2019 International version

Article Number 2200591
Edition 2018
Page format 209.9 x 297.0 mm
Number of pages 74
PDF (40 MB)

General overview 2021 International version

Edition 2020
Page format 209.9 x 297.0 mm
Number of pages 74
PDF (10 MB)

Certificate REACH (Documents)

REACH regulation

Edition 2020-08
Page format 209.9 x 297.0 mm
Number of pages 2
PDF (158 KB)
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