Wilo-Economy MHI

Your advantages IE3 IEC three-phase AC motor (>= 0.75 kW) All parts that come in contact with the fluid are made of stainless steel 1.4301 (AISI 304) or 1.4404 (AISI 316L) Space-saving, compact design Drinking water approval (ACS, KTW, WRAS) for all components in contact with the fluid (EPDM version) Recommended services Maintenance Commissioning WiloCare

Design

Non self-priming multistage pump

Application

Water supply and pressure boosting
Irrigation
Heating
System industrial equipment: Cooling, washing, food, renewable energy, ship building

Equipment/function

Stainless steel in monobloc design
Threaded connection
Single-phase or three-phase AC motor
Single-phase AC motor equipped with built-in thermal motor protection (with automatic restart)

Typekey

Example:	MHI 205-1/E/3-400-50-2-IE3
MHI	Multistage horizontal high-pressure centrifugal pump
2	Flow rate in m3/h
05	Number of impellers
1	Material1 = 1.4301 (AISI 304)2 = 1.4404 (AISI 316L)
E	Gasket typeE = EPDMV = FKM (Viton)
3	1 = 1~ (alternating current)3 = 3~ (three-phase current)
400	Connection voltage in V
50	Frequency in Hz
2	Number of poles
IE3	IE3 motor

Technical data

Mains connection 1~230 V (+-10 %), 50 Hz or optionally 220 V (+-10 %), 60 Hz
Mains connection: 3~230 V (+-10 %), 50 Hz (Δ) or optionally 265 V (+-10 %), 60 Hz (Δ), 400 V (+-10 %), 50 Hz (Y) or optionally 460 V (+-10 %), 60 Hz (Y);identical motor: 3~220 V (+-10 %), 60 Hz (Δ), 380 V (+-10 %), 60 Hz (Y);
Fluid temperature of -15 to +110 °C
Max. operating pressure 10 bar
Max. intake pressure of 6 bar
Protection class 1~: IPX4; 3~: IP54
Nominal diameters of pipe connections: Rp 1, Rp 1 1/4 or Rp 1 1/2, depending on type

Materials

Impellers, stage chambers and pump housing made of 1.4301/1.4404 stainless steel
Shaft 1.43.01 or 1.4404 stainless steel
Seal EPDM (EP 851) / FKM (Viton)
Mechanical sealEPDM version: B-carbon/silicon carbideFKM version: Silicon carbide/B-carbon
Bearing tungsten carbide/aluminium oxide
Pump base aluminium

Scope of delivery

Pump
Installation and operating instructions

Typekey

Example:	MHI 205-1/E/3-400-50-2-IE3
MHI	Multistage horizontal high-pressure centrifugal pump
2	Flow rate in m3/h
05	Number of impellers
1	Material1 = 1.4301 (AISI 304)2 = 1.4404 (AISI 316L)
E	Gasket typeE = EPDMV = FKM (Viton)
3	1 = 1~ (alternating current)3 = 3~ (three-phase current)
400	Connection voltage in V
50	Frequency in Hz
2	Number of poles
IE3	IE3 motor

Technical data

Mains connection 1~230 V (+-10 %), 50 Hz or optionally 220 V (+-10 %), 60 Hz
Mains connection: 3~230 V (+-10 %), 50 Hz (Δ) or optionally 265 V (+-10 %), 60 Hz (Δ), 400 V (+-10 %), 50 Hz (Y) or optionally 460 V (+-10 %), 60 Hz (Y);identical motor: 3~220 V (+-10 %), 60 Hz (Δ), 380 V (+-10 %), 60 Hz (Y);
Fluid temperature of -15 to +110 °C
Max. operating pressure 10 bar
Max. intake pressure of 6 bar
Protection class 1~: IPX4; 3~: IP54
Nominal diameters of pipe connections: Rp 1, Rp 1 1/4 or Rp 1 1/2, depending on type

Materials

Impellers, stage chambers and pump housing made of 1.4301/1.4404 stainless steel
Shaft 1.43.01 or 1.4404 stainless steel
Seal EPDM (EP 851) / FKM (Viton)
Mechanical sealEPDM version: B-carbon/silicon carbideFKM version: Silicon carbide/B-carbon
Bearing tungsten carbide/aluminium oxide
Pump base aluminium

Scope of delivery

Pump
Installation and operating instructions