Multistage, non-self-priming, horizontal high-pressure centrifugal pump in block design with horizontal suction port and vertical pressure port and built-in, air-cooled frequency converter. The integrated frequency converter enables variable speed control.

Control modes

• Mode 1: Manual speed control via potentiometer
• Mode 2: Pressure control via 4-20 mA or 0-10 V sensor signal, setpoint adjustment with potentiometer or via external 0-10 V or 0-20 mA signal
• Mode 3: Speed control via external 0- 20 mA or 0-10 V signal

Short-circuit-proof +24 V voltage output with max. contact strength of 30 mA present on the electronic module. The module has potential-free contacts for SSM, red and green LED for ON/OFF signal.

This pump has a compact design with a continuous motor pump shaft and a bidirectional mechanical seal.

The pump is suitable for water supply and pressure boosting, industrial recirculation systems, process water and cooling water circuits. It can also be used in fire extinguishing systems, washing systems as well as for irrigation.

Special features/product advantages

• Space-saving, compact block design
• All hydraulic parts which come into contact with the fluid, such as stage chambers, impellers, guide vane apparatuses and pump housings, are made of stainless steel.
• Drinking water approval (ACS, KTW, WRAS) for all components in contact with the fluid (EPDM version)

Scope of delivery

• Wilo-Multivert MHIE high-pressure multistage centrifugal pump
• Installation and operating instructions

Design notes

• Sensors are available as accessories.

Operating data

• Fluid media
  Water

Product data

• Min. fluid temperature T_min
  -15 °C
• Max. fluid temperature T_max
  110 °C
• Max. ambient temperature T_max
  50 °C
• Maximum operating pressure PN
  10 bar
• Maximum inlet pressure p inl
  6 bar

Motor data

• Electromagnetic compatibility
  EN 61000-6-1, -2, -3, -4
• Mains connection
  1~230 V, 50/60 Hz
• Voltage tolerance
  400/50:+/-10%_380/60:+/-10%_440/60:+/-6%
• Rated power P₂
  1.10 kW
• Rated current I_N
  12.70 A
• Min. speed n_min
  1370 rpm
• Max. speed n_max
  3350 rpm
• Insulation class
  F
• Protection class
  IP54

Materials

• Pump housing
  1.4301
• Impeller
  1.4301
• Shaft
  1.4301
• Shaft seal
  BQ1E3GG
• Gasket material
  EPDM

Installation dimensions

• Pipe connection on the suction side RPS
  Rp 1
• Pipe connection on the pressure side RPD
  Rp 1¼

Information for order placements

• Brand
  Wilo
• Product description
  Economy MHIE 403 M1, M3 (1~220/230/240 V, EPDM)
• Net weight, approx. m
  16 kg
• Article number
  4073102