Economy MHI 801 (3~400 V, EPDM) | Wilo

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Economy MHI 801 (3~400 V, EPDM)

Article number : 4210738

Hydraulic data
Maximum inlet pressure p inl	6 bar
Maximum operating pressure PN	10 bar
Discharge port	Rp 1¼
Min. fluid temperature T_min	-15 °C
Max. fluid temperature T_max	110 °C
Min. ambient temperature T_min	-15 °C
Max. ambient temperature T_max	40 °C

Motor data
Mains connection	3~400 V, 50 Hz
Voltage tolerance	±10 %
Rated power P₂	0,75 kW
Motor efficiency class	IE3
Rated current I_N	1,95 A
Rated speed n	2900 1/min
Activation type	Direct On Line (DOL)
Power factor cos φ₁₀₀	0,82
Motor efficiency 50% η_M50%	79,5 %
Motor efficiency 75% η_M75%	80,7 %
Motor efficiency 100% η_M100%	80,7 %
Insulation class	F
Protection class motor	IP54

Materials
Pump housing	Stainless steel
Impeller	Stainless steel
Shaft	Stainless steel
Mechanical seal	BQ1EGG
Gasket material	EPDM

Installation dimensions
Pipe connection on the suction side DNs	Rp 1½
Pipe connection on the discharge side DNd	Rp 1¼

Economy MHI

3~400 V; 1~230 V

Product data
Brand	Wilo
Product description	Economy MHI 801 (3~400 V, EPDM)
Article number	4210738
EAN number	4048482691947
Colour	green/silver
Minimum order quantity	1
Date of sales availability	2016-09-01

Packaging
Packaging type	Cardboard box
Packaging property	Transport packaging
Pieces per pallet	1
Number per layer	1

Dimension, weight
Length with packaging	600 mm
Length L	421 mm
Height with packaging	280 mm
Height H	219 mm
Width with packaging	260 mm
Width W	190 mm
Gross weight, approx. m	13,7 kg
Net weight, approx. m	12,2 kg

Multistage, non-self-priming, horizontal high-pressure centrifugal pump in block design with horizontal suction- and vertical pressure port.

The 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 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 and diffusors and the pump housing are made of stainless steel
Drinking water approval (KTW, WRAS) for all components in contact with the fluid (EPDM version)

Scope of delivery

Wilo-Economy MHI high-pressure multistage centrifugal pump
Installation and operating instructions

Design notes

Motor protection for three-phase AC motor is optional or to be provided on-site
Single-phase AC motor equipped with built-in thermal motor protection and capacitor

Operating data

Product data
Min. fluid temperature T_min	-15 °C
Max. fluid temperature T_max	110 °C
Min. ambient temperature T_min	-15 °C
Max. ambient temperature T_max	40 °C
Maximum operating pressure PN	10 bar
Maximum inlet pressure p inl	6 bar

Motor data
Mains connection	3~400 V, 50 Hz
Voltage tolerance	±10 %
Rated power P₂	0,75 kW
Motor efficiency class	IE3
Rated current I_N	1,95 A
Rated speed n	2900 1/min
Power factor cos φ₁₀₀	0,82
Motor efficiency 50% η_M50%	79,5 %
Motor efficiency 75% η_M75%	80,7 %
Motor efficiency 100% η_M100%	80,7 %
Insulation class	F
Protection class	IP54

Materials
Pump housing	Stainless steel
Impeller	Stainless steel
Shaft	Stainless steel
Shaft seal	BQ1EGG
Gasket material	EPDM

Installation dimensions
Pipe connection on the suction side DNs	Rp 1½
Pipe connection on the discharge side DNd	Rp 1¼

Ordering information
Brand	Wilo
Product description	Economy MHI 801 (3~400 V, EPDM)
Net weight, approx. m	12,2 kg
Article number	4210738

Installation and operating instructions

Wilo-Economy-MHI 2.. / 4.. / 8.. / 16..

Article Number	2020406
Edition	1604
Number of pages	1
Language	en, et, hr, lt, lv, mk, pt, sk, sl, sr, tr, uk

ZIP (12 MB)

Wilo-Economy-MHI 2.. / 4.. / 8.. / 16..

Article Number	2020406
Edition	1604
Number of pages	12
Language	en

PDF (258 KB)

Wilo-Economy MHI

Article Number	2020406
Edition	2020-03
Number of pages	112
Language	ar, bg, cs, da, de, el, en, es, et, fi, fr, ga, hr, hu, it, ko, lt, lv, mk, nl, no, pl, pt, ro, ru, sk, sl, sr, sv, tr, uk, zh

PDF (4 MB)

Group Statement

Group Statement REACH

Edition	2021-05
Number of pages	5
Language	language neutral

DWG (16 KB)

In inlet mode (2)
Shut-off valve
Shut-off valve	Ball valve Rp 1¼	2663979
Shut-off valve	Ball valve with lever for easy and safe installation. Certified suitability in accordance with CE for drinking water applications (e.g. in accordance with DIN 1988). Ball valves DVGW-certified up to Rp 2. Scope of delivery Ball valve with lever grip 5
Screwed connection for non-return valve
Screwed connection for non-return valve	Screwed connection for non-return valve DN 40	2660534
Screwed connection for non-return valve	Kit is comprised of 2 union nuts and 2 threaded nozzles made of brass and 2 seals. For valves with flat-sealing male thread.
Level control without fault signal (4)
Float switch WAO
Float switch WAO	Float switch WAO 65, 10 m cable	2006027
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
	Float switch WAO 65, 20 m cable	2004429
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
	Float switch WAO 65, 30 m cable	2004430
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
	Float switch WAO 65, 5 m cable	503211595
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
Pressure control with fault signal (1)
Wilo-EFC
Wilo-EFC	EFC0.75 3x380-480V 50/60Hz IP55	2193431
Wilo-EFC	A stand-alone frequency converter for fixed-speed pumps that are operated in variable applications, especially for heating, air conditioning and pressure boosting. Special features/product advantages Compact design with an energy-saving cooling concept for lowering temperature losses Integrated energy-efficient harmonic reduction function in the pump’s partial load range Versatile pumping application scenarios thanks to differing connection options and different control modes Simple commissioning thanks to an intuitive assistant with graphical user interface Options External communication via IF modules (optional): Profibus, DeviceNet, Profinet, Ethernet, Modbus Scope of delivery Stand-alone frequency converter Installation and operating instructions

Fittings (2)
Non-return valve
Non-return valve	Non-return valve RV/S R 1¼	2660840
Non-return valve	Non-return valve without screwed connections for use in water supply applications, DVGW-certified. Option Screwed connection for non-return valve made of brass (separate accessories)
Shut-off valve
Shut-off valve	Ball valve Rp 1¼	2663979
Shut-off valve	Ball valve with lever for easy and safe installation. Certified suitability in accordance with CE for drinking water applications (e.g. in accordance with DIN 1988). Ball valves DVGW-certified up to Rp 2. Scope of delivery Ball valve with lever grip 5
Pipe installation (1)
Flexible connection line
Flexible connection line	Flexible connection line Rp1 1/2 / R1 1/2	2012362
Flexible connection line	The flexible connecting line ensures that the pipes of the pressure boosting system are connected stress-free to the supply line.
Valves/accessories (1)
Screwed connection for non-return valve
Screwed connection for non-return valve	Screwed connection for non-return valve DN 40	2660534
Screwed connection for non-return valve	Kit is comprised of 2 union nuts and 2 threaded nozzles made of brass and 2 seals. For valves with flat-sealing male thread.

Pump control (1)
Wilo-EFC
Wilo-EFC	EFC0.75 3x380-480V 50/60Hz IP55	2193431
Wilo-EFC	A stand-alone frequency converter for fixed-speed pumps that are operated in variable applications, especially for heating, air conditioning and pressure boosting. Special features/product advantages Compact design with an energy-saving cooling concept for lowering temperature losses Integrated energy-efficient harmonic reduction function in the pump’s partial load range Versatile pumping application scenarios thanks to differing connection options and different control modes Simple commissioning thanks to an intuitive assistant with graphical user interface Options External communication via IF modules (optional): Profibus, DeviceNet, Profinet, Ethernet, Modbus Scope of delivery Stand-alone frequency converter Installation and operating instructions
Pump control/accessories (5)
Low-water cut-out switchgear kit for domestic water systems
Low-water cut-out switchgear kit for domestic water systems	low-water cut-out switchgear kit WMS G2	4204510
	The kit detects low water using pressure measurement and is adjusted to the increase in pressure and pressure maintenance of non-potable water. The kit is used exclusively for single-phase products. For horizontal pumps, the connection is established for 1" or 1"1/4 using a reduction nipple M/M 1"1/4-1". For vertical pumps, the oval shape 1"1/4 connection is possible using an oval counter flange with an O-ring. The switch-on and switch-off pressure for needs-based operation and pressure range of the pump is configured on the reverse pressure switch. The pressure measurement is carried out using a single-phase low pressure switch. If the pressure decreases and reaches 0.1 bar, the pump is stopped. The pump starts again when the pressure rises and reaches 0.5 bar. These starting and stopping pressure values are factory settings and can be changed. You can use the pressure gauge to define the values. Scope of delivery The kit is supplied with the following, unmounted components: Single-phase low-pressure switch T-connector 1/4’’ M/F/F Pressure gauge 0-6 bar M/M reduction nipple 3/8’’ – 1/4’’ T-connector 1’’1/4 – 3/8’’ – 1’’1/4 Reduction nipple M/M 1’’1/4 – 1’’ M/M nipple 1’’1/4 Oval counter flange 1’’1/4 O-ring
	low-water cut-out switchgear kit WMS G2	4204512
	The kit detects low water using pressure measurement and is adjusted to the increase in pressure and pressure maintenance of non-potable water. The kit is used exclusively for single-phase products. For horizontal pumps, the connection is established for 1"1/2 or 2" using a reduction nipple M/M 2"-1"1/2. For vertical pumps, the oval shape 2" connection is possible using an oval counter flange with an O-ring. The switch-on and switch-off pressure for needs-based operation and pressure range of the pump is configured on the reverse pressure switch. The pressure measurement is carried out using a single-phase low pressure switch. If the pressure decreases and reaches 0.1 bar, the pump is stopped. The pump starts again when the pressure rises and reaches 0.5 bar. These starting and stopping pressure values are factory settings and can be changed. You can use the pressure gauge to define the values. Scope of delivery Single-phase low-pressure switch T-connector 1/4’’ M/F/F Pressure gauge 0-6 bar M/M reduction nipple 1/2’’ – 1/4’’ T-connector 2’’– 1/2’’ – 2’’ Reduction nipple M/M 2’’ – 1’’1/2 M/M nipple 2’’ Oval counter flange 2’’ O-ring
Output filter EFC (150-500 m cable length)
Output filter EFC (150-500 m cable length)	2.4 A sin IP54 Wilo-EFC filter	6084559
	Output filter for Wilo-EFC
	2.5 A sin IP00 Wilo-EFC filter	6084574
	Output filter for Wilo-EFC
	2.5 A sin IP20 Wilo-EFC filter	6084900
	Output filter for Wilo-EFC
Pressure control (5)
Pressure sensor for systems
Pressure sensor for systems	Pressure sensor, 0 - 6 bar	2550660
	Signal transmitter for differential pressure-sensitive infinitely variable speed control. Note Take care to ensure that a non-return valve is placed between pump and sensor. Further maintenance valves and a diaphragm pressure vessel are required for error-free functioning. Scope of delivery Pressure sensor (factory-calibrated) Plug
	Pressure sensor, 0 - 10 bar	2550661
	Signal transmitter for differential pressure-sensitive infinitely variable speed control. Note Take care to ensure that a non-return valve is placed between pump and sensor. Further maintenance valves and a diaphragm pressure vessel are required for error-free functioning. Scope of delivery Pressure sensor (factory-calibrated) Plug
	Pressure sensor, 0 - 16 bar	2550662
	Signal transmitter for differential pressure-sensitive infinitely variable speed control. Note Take care to ensure that a non-return valve is placed between pump and sensor. Further maintenance valves and a diaphragm pressure vessel are required for error-free functioning. Scope of delivery Pressure sensor (factory-calibrated) Plug
	Pressure sensor, 0 - 25 bar	2550663
	Signal transmitter for differential pressure-sensitive infinitely variable speed control. Note Take care to ensure that a non-return valve is placed between pump and sensor. Further maintenance valves and a diaphragm pressure vessel are required for error-free functioning. Scope of delivery Pressure sensor (factory-calibrated) Plug
	Pressure sensor, 0 - 40 bar	2550664
	Signal transmitter for differential pressure-sensitive infinitely variable speed control. Note Take care to ensure that a non-return valve is placed between pump and sensor. Further maintenance valves and a diaphragm pressure vessel are required for error-free functioning. Scope of delivery Pressure sensor (factory-calibrated) Plug
Level control (29)
Float switch WA
Float switch WA	Float switch WA65 with 5 m cable	503211390
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up ON / down OFF
	Float switch WA65 with 10 m cable	503211893
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up ON / down OFF
	Float switch WA65 with 20 m cable	2004431
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up ON / down OFF
	Float switch WA65 with 30 m cable	2004432
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up ON / down OFF
	Float switch WA KR1 S with 5 m cable	6082806
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up ON / down OFF
	Float switch WA KR1 S with 10 m cable	6082807
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up ON / down OFF
	Float switch WA65 (PSN-X) with 20 m cable	6088843
	As a signal transmitter for the system switching, depending on the fill level of an open tank or a cistern. Switching points: up ON/down OFF with switching contacts NO/COM/NC
	Float switch WA65 (PSN-X) with 10 m cable	6088844
	As a signal transmitter for the system switching, depending on the fill level of an open tank or a cistern. Switching points: up ON/down OFF with switching contacts NO/COM/NC
	Float switch WA65 (PSN-X) with 5 m cable	6088845
	As a signal transmitter for the system switching, depending on the fill level of an open tank or a cistern. Switching points: up ON/down OFF with switching contacts NO/COM/NC
Float switch WA-EK
Float switch WA-EK	Float switch WAEK 65, 5 m cable	503211698
	Small EK switchgear complete with float switch wired for ready-to-plug consumer (1~230 V, 50 Hz) to 1 kW rated power. The float switch functions as a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up ON / down OFF
	Float switch WAEK 65, 10 m cable	2005516
	Small EK switchgear complete with float switch wired for ready-to-plug consumer (1~230 V, 50 Hz) to 1 kW rated power. The float switch functions as a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up ON / down OFF
	Float switch WAEK 65, 20 m cable	2005517
	Small EK switchgear complete with float switch wired for ready-to-plug consumer (1~230 V, 50 Hz) to 1 kW rated power. The float switch functions as a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up ON / down OFF
Float switch WAO
Float switch WAO	Float switch WAO 65, 5 m cable	503211595
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
	Float switch WAO 65, 10 m cable	2006027
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
	Float switch WAO 65, 20 m cable	2004429
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
	Float switch WAO 65, 30 m cable	2004430
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
Float switch WAO-EK
Float switch WAO-EK	Float switch WAOEK 65, 20 m cable	2005626
	Small EK switchgear complete with float switch wired for ready-to-plug consumer (1~230 V, 50 Hz) to 1 kW rated power. The float switch functions as a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
	Float switch WAOEK 65, 5 m cable	2028673
	Small EK switchgear complete with float switch wired for ready-to-plug consumer (1~230 V, 50 Hz) to 1 kW rated power. The float switch functions as a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
Submersible electrode
Submersible electrode	Submersible electrode, 3 m	500183799
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode, 4 m	2516278
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode, 5 m	500937990
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode, 10 m	2501937
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode, 20 m	2516283
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode, 25 m	2000601
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode, 30 m	2514045
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode, 35 m	2516284
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode, 40 m	2516285
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode, 50 m	2500315
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode without cable	64873
	Signal transmitter without connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. Notice: The connection cable must be provided and connected by the customer!
Motor protection (1)
PTC thermistor tripping unit
PTC thermistor tripping unit	PTC thermistor tripping unit	509275993
PTC thermistor tripping unit	PTC thermistor triggering relay for switch cabinet installation (1 device per motor required). The thermistor overload relays monitor motors which are equipped with PTC thermistor temperature sensors. The temperature sensors are installed in the windings of the motors and measure the heating up of the motor directly. This enables direct monitoring and evaluation of various operating conditions. A collective fault signal (SSM) is possible with corresponding wiring in the switch cabinet.

Economy MHI 801 (3~400 V, EPDM)

Economy MHI

3~400 V; 1~230 V

Installation and operating instructions

Wilo-Economy-MHI 2.. / 4.. / 8.. / 16..

Wilo-Economy-MHI 2.. / 4.. / 8.. / 16..

Wilo-Economy MHI

Group Statement

Group Statement REACH

3D_DWG

MHI801-1/E/3-400-50-2/IE3

3D_STEP

MHI801-1/E/3-400-50-2/IE3

2D_DWG_TOP

MHI801-1/E/3-400-50-2/IE3

2D_DWG_FRONT

MHI801-1/E/3-400-50-2/IE3

2D_DWG_RIGHT

MHI801-1/E/3-400-50-2/IE3

In inlet mode (2)

Shut-off valve

Shut-off valve

Screwed connection for non-return valve

Screwed connection for non-return valve

Level control without fault signal (4)

Float switch WAO

Float switch WAO

Pressure control with fault signal (1)

Wilo-EFC

Wilo-EFC

Fittings (2)

Non-return valve

Non-return valve

Shut-off valve

Shut-off valve

Pipe installation (1)

Flexible connection line

Flexible connection line

Valves/accessories (1)

Screwed connection for non-return valve

Screwed connection for non-return valve

Pump control (1)

Wilo-EFC

Wilo-EFC

Pump control/accessories (5)

Low-water cut-out switchgear kit for domestic water systems

Low-water cut-out switchgear kit for domestic water systems

Output filter EFC (150-500 m cable length)

Output filter EFC (150-500 m cable length)

Pressure control (5)

Pressure sensor for systems

Pressure sensor for systems

Level control (29)

Float switch WA

Float switch WA

Float switch WA-EK

Float switch WA-EK

Float switch WAO

Float switch WAO

Float switch WAO-EK

Float switch WAO-EK

Submersible electrode

Submersible electrode

Motor protection (1)

PTC thermistor tripping unit

PTC thermistor tripping unit