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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
  • Firefighting
  • 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

Scope of delivery

  • 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

General Overview 2022 - International version

Edition 2022
Page format 209.9 x 297.0 mm
Number of pages 78
PDF (38 MB)

Certification booklet

Wilo-Zeox FIRST H-V

Article Number 2220759
Edition 2022-05
Page format 209.9 x 297.0 mm
Number of pages 24
PDF (13 MB)

Certificate REACH

REACH Regulation

Edition 2021-05
Page format 209.9 x 297.0 mm
Number of pages 4
PDF (212 KB)