Wilo-Multivert MVIS

Series description

Design

Non-self-priming multistage pump with glandless pump motor

Application

  • Water supply and pressure boosting systems

Type key

Example:MVIS 402-1/16/E/3-400-50-2
MVISMultistage vertical high-pressure centrifugal pump in glandless pump technology
4Volume flow in m3/h
02Number of impellers
1Material
1 = 1.4301 (AISI 304)
16Nominal pressure in bar
KSeal type
EPDM
33 = 3~ (three-phase current)
400Connection voltage in V
50Frequency in Hz
2Number of poles

Special features/product advantages

  • Glandless pump technology
  • Virtually noiseless operation (up to 20 dB [A] quieter than conventional pumps)
  • Space-saving, compact design
  • Virtually maintenance free thanks to a design which does not feature any mechanical seals
  • Drinking water approval for all components that come in contact with the fluid (EPDM version)

Technical data

  • Mains connection 3~230 V (±10 %), 50 Hz (∆), 400 V (±10 %), 50 Hz (Y)
  • Fluid temperature -15 to +50 °C
  • Max. ambient temperature +40 °C
  • Max. operating pressure 16 bar
  • Max. inlet pressure 10 bar
  • Protection class IP44
  • Nominal diameters of pipe connections Rp 1, Rp 1¼ or Rp 1½, depending on type

Equipment/function

  • Multistage, non-self-priming, vertical high-pressure centrifugal pump in in-line design.
  • Glandless three-phase motor
  • Hydraulic connection with oval flanges PN 16

Materials

  • Impellers stainless steel 1.4301
  • Stage chambers stainless steel 1.4301
  • Pump housing stainless steel 1.4301
  • Shaft stainless steel 1.4122
  • Seal EPDM (EP 851)
  • Lower housing section stainless steel 1.4301
  • Pressure shroud stainless steel 1.4301
  • Bearing carbon, synthetic resin impregnated
  • Pump base EN‐GJL‐250

Scope of delivery

  • Wilo-Multivert MVIS high-pressure multistage centrifugal pump
  • Stainless steel oval counter flanges Rp 1 to Rp 1 ½ with the corresponding screws, nuts and gaskets
  • Installation and operating instructions

Downloads

General overview

Edition 2017
Page format A4
Number of pages 72

PDF (46 MB)

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Wilo–Multivert MVIS

Article Number 2020405
Edition 0009
Version number 02
Page format A4
Number of pages 13

PDF (1 MB)

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PDF: Wilo-Multivert MVIS

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