

Wilo-Multivert MVIS
Non-self-priming multistage pump with glandless pump motor.
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Description
Non-self-priming multistage pump with glandless pump motor.
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Advantages
- Glandless pump technology
- Virtually noiseless operation (up to 20 dB [A] quieter than conventional pumps)
- Space-saving, compact design
- Virtually maintenance-free with no mechanical seals in design
- Drinking water approvals for all components that come in contact with the fluid
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Technical Features
Design
Non-self-priming multistage pump with glandless pump motor.
Application
- Water supply and pressure boosting systems
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. Mating flanges of grey cast iron with female thread, screws and gaskets (scope of delivery)
Typekey
Example: MVIS 402-1/16/K/3-400-50-2 MVIS Multistage vertical high-pressure centrifugal pump in glandless pump technology 4 Volume flow in m3/h 02 Number of impellers 1 Material1 = 1.4301 (AISI 304) 16 Nominal pressure in bar K Seal typeEPDM 3 3 = 3~ (three-phase current) 400 Connection voltage in V 50 Frequency in Hz 2 Number of poles Technical Data
- Mains connection 3~230 V (±10 %), 50 Hz (∆), 220 V (±10 %), 60 Hz (∆), 400 V (±10 %), 50 Hz (Y) or 380 V (±10 %), 60 Hz (Y)
- Fluid temperature -15 to +50 °C
- Max. operating pressure 16 bar
- Max. inlet pressure 10 bar
- Protection class IP 44
- Nominal diameters of pipe connections Rp 1, Rp 1¼ or Rp 1½, depending on type
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
- Downloads
Why Wilo Pumps…
Self-Priming
Convenient
Highly-Efficient
Noise-Free
Diversity
Optimised Design
What Trebles Customers Think
Job delivered and commissioned at the height of the pandemic with no changes to the excellent service we always receive.
Carl Berridge – MD, Powergas
The team at Trebles were great. I really can’t praise them enough.
Richard Beard – Club Secretary, Belvedere Park FC
Not many providers would be able to fully breakdown & rebuild a booster on site
Clive Bradley – Senior Contracts Engineer, JS Wright
We relied on Trebles expertise to ensure the right products were sourced for our project.
Matthew Gidley – Senior Contracts Engineer, JS Wright
Top workmanship and a professional attitude from a supportive team
Richard Leek – Project Manager, Marshdale
Excellent customer service again! You genuinely make my life so much easier
Anthony Gooding – Director, HSP
Excellent service and a company I would recommend to anyone in future
Jason Goldsmith – Supervisor, Interserve
Engineers were very professional with an excellent knowledge of their trade
Martin Deakin – Gas Surveyor, Bromford
We’re writing to express our sincere thanks to all who help ensure our hospitals are able to run smoothly
Richard Hill – Estates Manager, London Road Community Hospital
Job delivered and commissioned at the height of the pandemic with no changes to the excellent service we always receive.
Carl Berridge – MD, Powergas
The team at Trebles were great. I really can’t praise them enough.
Richard Beard – Club Secretary, Belvedere Park FC
Not many providers would be able to fully breakdown & rebuild a booster on site
Clive Bradley – Senior Contracts Engineer, JS Wright
We relied on Trebles expertise to ensure the right products were sourced for our project.
Matthew Gidley – Senior Contracts Engineer, JS Wright
Top workmanship and a professional attitude from a supportive team
Richard Leek – Project Manager, Marshdale
Excellent customer service again! You genuinely make my life so much easier
Anthony Gooding – Director, HSP
Excellent service and a company I would recommend to anyone in future
Jason Goldsmith – Supervisor, Interserve
Engineers were very professional with an excellent knowledge of their trade
Martin Deakin – Gas Surveyor, Bromford
We’re writing to express our sincere thanks to all who help ensure our hospitals are able to run smoothly
Richard Hill – Estates Manager, London Road Community Hospital
Job delivered and commissioned at the height of the pandemic with no changes to the excellent service we always receive.
Carl Berridge – MD, Powergas
The team at Trebles were great. I really can’t praise them enough.
Richard Beard – Club Secretary, Belvedere Park FC
Not many providers would be able to fully breakdown & rebuild a booster on site
Clive Bradley – Senior Contracts Engineer, JS Wright