MVIS Wet Rotor Booster Pumps

MVIS Wet Rotor Booster Pumps


  • Nominal bore: Rp 1 до Rp 1 1/2
  • Flow rate: up to 14 m³/h
  • Head: up to 110 m
  • Temperature: from -10 °С to +50 °С
  • Process pressure: max. 16 bar

Low level of noise (20 dB [A] lower than of common pumps)

Construction:
  • Vertical multistage centrifugal in-line pump made of stainless steel;
  • Maintenance-free wet rotor pump;
  • The most noiseless booster pump (noise level is about 40 dB (А);
  • Three-phase motors (DM);
  • Pump construction material: 1.4301 stainless steel;
  • Oval contra-flanges are also supplied.

Wilo-Multivert MVIS Specification and Advantages:

  • Low level of noise (20 dB [A] lower than of common pumps) / scale of noise comparison;
  • All pump parts contacting with pumped liquid are resistant to corrosion;
  • Wet rotor construction;
  • All main pump parts are approved by KTW and WRAS.

Main Technical Characteristics:

  • Power connection: 3~230 V/50 Hz (D), 220 V/60 Hz (D), 400 V/50 Hz (Y) or 380 V/60 Hz (Y);
  • Temperature of pumped liquid ranging from -15 to +50° C;
  • Process pressure is 16 bar;
  • Head in pressure inlet line is 6 bar;
  • Protection type: IP 44;
  • Nominal external nozzle diameter depending on type: Rp 1, Rp 1 1/4 or Rp 1 1/2.
Type’s Code Construction materials:
Example: MVIS 402-1/16/E/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 - Material (AISI 304)
  • 16 - Nominal pressure in bar
  • K - Seal type EPDM
  • 3 - 3 = 3~ (three-phase current)
  • 400 - Connection voltage in V
  • 50 - Frequency in Hz
  • 2 - Number of poles
  • Impeller is made of 1.4301 stainless steel;
  • Blades are made of  1.4301 stainless steel;
  • Pump housing is made of 1.4301 stainless steel;
  • Shaft is made of 1. 4122 stainless steel;
  • Mechanical seal is made of EPDM (EP 851);
  • Lower shaft part is made of 1.4301 stainless steel;
  • Forcing casing is made of  1.4301 stainless steel;
  • Graphite bearings permeated by synthetic resin;
  • Pump-foot  is made of EN-GJL-250.
Operational Characteristics

Operational Characteristics