Multistage, non self-priming, vertical high-pressure centrifugal pump in in-line design with three-phase glandless pump motor and integrated frequency converter.

The integrated frequency converter enables variable speed control.

Control modes

• Mode 1: Manual speed control with rotary knob
• Mode 2: Pressure control via 4-20 mA or 0-10 V sensor signal or other control (temperature, volume flow, etc.) possible, setpoint adjustment with rotary knob or an external 0-10 V or 4-20 mA signal
• Mode 3: Speed control via external 0- 20 mA or 0-10 V signal

A short-circuit-proof +24 V voltage output with max. contact strength of 50 mA is present on the electronic module. The module has potential-free contacts for SSM and SBM, potential-free contacts for external ON/OFF operation as well as integrated motor protection with detection of missing phase, detection of low water and display of the error code on the display. A plug-in position for Wilo IF-Modules PLR, LON for connection to building automation is present.

The pump has a self-venting, compact design with a continuous motor/pump shaft and bearings on the motor side. All hydraulic parts which come into contact with the fluid are made of stainless steel. The connection is established by means of oval flanges.

The pump is suitable for water and pressure boosting.

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)

Scope of delivery

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

Design notes

• Optional plug-in IF-Modules
• Sensors are available as accessories.

Operating data

• Fluid media
  Water

Product data

• Min. fluid temperature T
  -15 °C
• Max. fluid temperature T
  50 °C
• Max. ambient temperature T
  50 °C
• Maximum operating pressure PN
  16 bar
• Maximum inlet pressure p inl
  10 bar

Motor data

• Electromagnetic compatibility
  EN 61000-6-1, -2, -3, -4
• Mains connection
  3~400 V, 50/60 Hz
• Voltage tolerance
  ±10 % %
• Rated power P₂
  1.10 kW
• Rated current I_N
  4.20 A
• Min. speed n_min
  1000 rpm
• Max. speed n_max
  2900 rpm
• Insulation class
  F
• Protection class
  IP44

Materials

• Pump housing
  1.4301, X5CrNi18-10
• Impeller
  1.4301, X5CrNi18-10
• Shaft
  1.4122, X39CrMo17-1
• Gasket material
  EPDM

Installation dimensions

• Pipe connection on the suction side
  G 1¼
• Pipe connection on the pressure side
  G 1¼

Information for order placements

• Brand
  Wilo
• Product description
  Multivert MVISE 406-3G
• Net weight, approx. m
  29 kg
• Article number
  4225624