Example:	Wilo-Rexa PRO V06DA-110/EAD1X2-T0015-540-O
PRO	Series name
V	Type of impeller: V = vortex impeller C = single-channel impeller
06	Nominal diameter of pressure connection e.g. DN 65
D	Hydraulic version: D = suction side drilled acc. to DIN N = suction side drilled acc. to ANSI (American National Standards Institute)
A	Material version, hydraulics
110	Hydraulics definition
E	Surface-cooled motor
A	Material version, motor
D	Seal with two independent mechanical seals
1	IE efficiency class, e.g. 1 = IE1 (derived from IEC 60034-30)
X	Ex rating: X = ATEX F = FM C = CSA
2	Number of poles
T	Mains connection version: M = 1~ T = 3~
0015	Value/10 = rated power P2 in kW
5	Frequency (5 = 50 Hz, 6 = 60 Hz)
40	Rated voltage code
O	Additional electrical equipment: O = with bare cable end F = float switch with bare cable end A = float switch with plug P = with plug

• Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
• Submerged operating mode: S1
• Non-immersed operating mode: S2-30 min; S3 25%
• Protection class: IP68
• Insulation class: F, optionally H
• Fluid temperature: 3…40 °C, max. 60 °C for 3 min
• Max. immersion depth: 20 m
• Cable length: 10 m

• Motor housing: EN-GJL-250
• Hydraulics housing: EN-GJL 250
• Impeller: EN-GJL 250 or EN-GJS-500-7
• Static gaskets: NBR
• Sealing on pump side: SiC/SiC
• Sealing on motor side: C/MgSiO4
• Shaft end: Stainless steel 1.4021

Submersible sewage pump as submersible monobloc unit for stationary and portable wet well installation, as well as stationary dry well installation.

Hydraulics

The outlet on the pressure side is designed as horizontal flange connection. The maximum possible dry matter is 8 % (depending on the hydraulics). Vortex and single-channel impellers are used.

Motor

The motor versions used are single-phase current and three-phase current surface-cooled motors. For single-phase current motors, the condenser is installed in a separate switchgear. Depending on performance, activation is carried out via direct startup or star/delta startup.

The motor is cooled by the medium around it (pumped fluid or air). The waste heat is dissipated via the motor housing.

The motors can be immersed during continuous duty (S1). In submerged operation, the operating modes S1 (continuous duty), S2 (short-time duty) or S3 (intermittent) are possible depending on the rated motor power.

Furthermore the motors are equipped with the following monitoring devices:

• Leakage detection motor compartment: The leakage detection signals water ingress into the motor compartment.
• Thermal motor monitoring: thermal motor monitoring protects the motor winding against overheating. Bimetallic strips are used for this as standard.

The motor can also be fitted with an external sealing chamber electrode to monitor the sealing chamber. This signals if there is water ingress into the sealing chamber through the mechanical seal on the fluid side.

The connection cable has bare cable ends and a length of 10 m as standard, and is available in following versions:

Seal

Located between the motor and hydraulics is a sealing chamber with the seal on the fluid and motor side. This sealing chamber is filled with medicinal white oil. The fluid-side and motor-side seals are provided by two mechanical seals which rotate independently of each other.

• Submersible sewage pump with 10 m cable
• Operating and maintenance manual

Example:	Wilo-Rexa FIT V06DA-110/EAD1-2-T0015-540-A
Rexa	Submersible sewage pump
FIT	Series
V	Vortex impeller
06	Nominal diameter of pressure connection e.g. DN 65
D	Hydraulics drilled on the suction side in accordance with DIN drilled
A	Standard material version, hydraulics
110	Hydraulics definition
E	Surface-cooled motor
A	Standard material version motor
D	Seal with two independent mechanical seals
1	IE efficiency class, e.g. 1 = IE1 (derived from IEC 60034-30)
–	not Ex-rated
2	Number of poles
T	Mains connection version: M = 1~ T = 3~
0015	Value/10 = motor power P2 in kW
5	Frequency (5 = 50 Hz, 6 = 60 Hz)
40	Code for rated voltage
A	Additional electrical equipment: O = with bare cable end P = with plug A = with float switch and plug

• Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
• Submerged operating mode: S1
• Non-immersed operating mode: S2-15 min; S3 10%
• Protection class: IP68
• Insulation class: F
• Fluid temperature: 3 – 40 °C, max. 60 °C for 3 min
• Free passage: 50 / 65 / 80 mm
• Cable length: 10 m

• Motor housing: 1.4301
• Hydraulics housing: EN-GJL 250
• Impeller: EN-GJL 250
• Static gaskets: NBR
• Sealing on pump side: SiC/SiC
• Sealing on motor side: C/MgSiO4
• Shaft end: Stainless steel 1.4021

Submersible sewage pump as submersible monobloc unit for stationary and portable wet well installation in intermittent operation.

Hydraulics

The outlet on the pressure side is designed as horizontal flange connection. The maximum possible dry matter is 8 % (depending on the hydraulics). Vortex impellers are used as the impeller shape.

Motor

The motors available are surface-cooled motors in single-phase version (with built-in operating capacitor) and three-phase version for the direct starting. The waste heat is given off directly to the surrounding fluid via the motor housing. These motors can operated immersed in continuous duty (S1) and non-immersed in short-time duty (S2) or intermittent periodic duty (S3).

Furthermore the motors are equipped with thermal motor monitoring. This protects the motor windings against overheating. For units with single-phase AC motors this is built-in and switches automatically. I.e. if the motor is switched off due to overheating and then cools down it is automatically switched on again. Bimetallic strips are used for this as standard.

In addition the motor can be equipped with an external sealing chamber electrode for monitoring the oil barrier chamber. This signals if there is water ingress into the oil barrier chamber through the mechanical seal on the fluid side.

The connection cable has a length of 10 m as standard and is available in following versions:

• With bare cable ends
• With plug
• With float switch and plug

Seal

There is a sealing chamber between the motor and hydraulics. This is filled with medicinal white oil. The fluid-side and motor-side seals are provided by two mechanical seals which rotate independently of each other.

Delivery state

• Submersible sewage pump with 10 m cable
• Cable version depending on the variant:
  • With bare cable ends (O)
  • With plug (P)
  • With float switch and plug (A)
• Operating and maintenance manual

Example:	Wilo-Rexa CUT GE03.26/P-T15-2-540X/P
Rexa	Submersible sewage pump with centrifugal hydraulics
CUT	Series with macerator
GE	Hydraulic version: GI = internal macerator GE = external macerator
03	Nominal diameter of the pressure connection: 03 = DN 32 04 = DN 40
26	Zero-delivery head in m
P	Motor version: S = stainless steel motor housing P = cast iron motor housing
T	Mains connection version: M = 1~ T = 3~
15	Value/10 = motor power P2 in kW
2	Number of poles
5	Frequency (5 = 50 Hz, 6 = 60 Hz)
40	Code for rated voltage
X	Ex rating: No supplement = not Ex-rated X = Ex-rated
P	Additional electrical equipment: No supplement = with bare cable end P = with plug

• Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
• Submerged operating mode: S1
• Operating mode, non-immersed, CUT GI: S2-15 min; S3 10 %
• Operating mode, non-immersed, CUT GE: S2-30 min; S3 25%
• Protection class: IP68
• Insulation class: F (CUT GE: optionally H)
• Fluid temperature: 3…40 °C, max. 60 °C for 3 min
• Max. immersion depth: 20 m
• Cable length: 10 m

• Motor housing: 1.4301 (motor version “S”) or EN-GJL-250 (motor version “P”)
• Hydraulics housing: EN-GJL-250
• Impeller: EN-GJL 250
• Shaft end: Stainless steel 1.4021
• Macerator: interior blade = 1.4528; external blade = Abrasite/1.4034
• Sealing on pump side: SiC/SiC
• Sealing on motor side: C/MgSiO4
• Static gaskets: NBR

Submersible sewage pump with internal or external macerator as submersible monobloc unit for stationary and portable wet well installation in intermittent and continuous duty.

Hydraulics

The outlet on the pressure side is designed as horizontal flange connection with a DN 32/40 combined connection. The maximum possible dry matter is 8 % (depending on the hydraulics) Single-channel and multi-channel impellers are used.

Motor

Single-phase and three-phase current surface-cooled motors for direct starting are used as the motors. The waste heat is given off directly to the surrounding fluid via the motor housing. These motors can operated immersed in continuous duty (S1) and non-immersed in short-time duty (S2) or intermittent periodic duty (S3).

The motors are equipped with a thermal winding monitor. This protects the motor windings against overheating. Bimetallic strips are used for this as standard. Motors in the P-version are also equipped with motor compartment monitoring. The moisture probe signals water ingress into the motor compartment.

Furthermore, the motor can also be fitted with an external pencil electrode to monitor the sealing chamber. This signals if there is water ingress into the sealing chamber through the seal on the pump side.

The connection cable has a length of 10 m as standard and the single-phase version is equipped with a plug. The three-phase version has bare cable ends as standard and is cast as longitudinally watertight for P-version motors.

Seal

There is a sealing chamber between the motor and hydraulics. It is filled with medical white oil and protects the motor from media ingress by the seal on pump side. The pump-side and motor-side seals are provided by two mechanical seals which rotate independently of each other.

• Pump
• 10 m connection cable with plug (single-phase version) or bare cable end (three-phase version)
• Installation and operating instructions

Example:	Wilo-Padus UNI M05B/T15-540/A
Padus	Submersible drainage pump with centrifugal hydraulics
UNI	Series with copolymer hydraulics
M	Open multi-channel impeller
05	Nominal diameter of the pressure connection: G2
B	Version None = standard version B = motor housing in V4A K = motor with sheath flow cooling
T	Mains connection version: M = 1~ T = 3~
15	Value/10 = motor power P2 in kW
5	Frequency (5 = 50 Hz, 6 = 60 Hz)
40	Rated voltage code
A	Additional electrical equipment: No supplement = With bare cable end P = with plug A = with float switch and plug VA = Vertical float switch and plug

• Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
• Submerged operating mode: S1
• Non-immersed operating mode: S2-15 min; S3 10%
• Non-immersed operating mode “K” version: S1
• Pressure connection: G2
• Protection class: IP68
• Insulation class: F
• Fluid temperature: 3 – 40 °C, max. 60 °C for 3 min
• Free passage: 10 mm
• Cable length: 10 m

• Motor housing: 1.4301
• Hydraulics housing: PP-GF30 (copolymer)
• Impeller: PP-GF30 (copolymer)
• Static gaskets: NBR
• Sealing on pump side: SiC/SiC
• Sealing on motor side: C/Cr
• Shaft end: Stainless steel 1.4401

In material version “B”, all parts that come in contact with the fluid are made of stainless steel 1.4401 (AISI 316).

Submersible drainage pump as submersible monobloc unit for portable wet well installation.

Hydraulics

The outlets on the pressure side are designed as vertical threaded flange connections. Open multi-channel impellers are used as the impeller shape. A strainer is integrated at the hydraulics housing.

Motor

Surface-cooled motors or sheath flow-cooled motors in single-phase current version (with built-in operating capacitor) and three-phase current version for direct starting are used:

• Surface-cooled motors: The waste heat is given off directly to the surrounding fluid via the motor housing. These motors can operated immersed in continuous duty (S1) and non-immersed in short-time duty (S2) or intermittent periodic duty (S3).
• Sheath flow-cooled motors: The waste heat is transferred to the fluid via the motor housing. The motors can be used in immersed state and in non-immersed state for continuous duty (S1).

Furthermore the motors are equipped with thermal motor monitoring. This protects the motor windings against overheating. For units with single-phase AC motors this is built-in and switches automatically. I.e. if the motor is switched off due to overheating and then cools down it is automatically switched on again. Bimetallic strips are used for this as standard.

The connection cable has a length of 10 m as standard and is available in following versions:

• With bare cable ends
• With plug
• With float switch and plug

Pump with vertical float switch

The “VA” version is equipped with a vertical float switch. In this version, the switching level is preset by two floaters sitting on a threaded rod. It uses less space than conventional float switches and is perfect for use in tight manholes.

Seal

There is a sealing chamber between the motor and hydraulics. This is filled with medicinal white oil. The unit is sealed on the fluid and on the motor side by mechanical seals.

• Submersible drainage pump with 10 m cable
• Operating and maintenance manual

E.g.:	Wilo-Drain MTC 32F55.13/66Ex
MT	Macerator technology
C	Cast iron version
32	Nominal diameter [mm]
F	Impeller shape
55	Max. delivery head [m]
13	Max. volume flow [m3/h]
66	Power P2 [kW] = (value/10 = 6.6 kW)
Ex	ATEX approval
A	With float switch and shockproof plug

• Mains connection: 1~230 V, 50 Hz (only MTC 40) and 3~400 V, 50 Hz
• Submerged operating mode: S1
• Non-immersed operating mode: S2-15 min or S3 30%
• Protection class: IP68
• Insulation class: F
• Fluid temperature: 3…40 °C (MTC 40: 3…35 °C)
• Cable length: 10 m

• Motor housing: EN-GJL-200 or EN-GJL-250
• Hydraulics housing: EN-GJL-250
• Impeller: EN-GJL-HB175, EN-GJS-500 or EN-GJL-250
• Shaft: Stainless steel 1.0503, 1.7225 or 1.4021
• Macerator: Stainless steel 1.4112, Abrasit/1.4034 or X102CrMo17K4
• Sealing on pump side: SiC/SiC
• Sealing on motor side:
  • MTC 40 Al oxide/SiC
  • MTC 32F39.16: NBR
  • MTC 32F49.17 and MTC 32F55.13: Carbon/ceramic
• Static gasket: NBR

Submersible sewage pump with external macerator as submersible monobloc unit for stationary and portable wet well installation in continuous duty.

Hydraulics

The outlet on the pressure side is designed as a horizontal thread connection/flange connection (MTC 40) or as flange connection (MTC 32). Open multi-channel impellers are used.

Motor

The motors available are surface-cooled motors in single-phase version (only MTC 40) and three-phase version for direct starting. The waste heat is given off directly to the surrounding fluid via the motor housing. These motors can operated immersed in continuous duty (S1) and non-immersed in short-time duty (S2) or intermittent periodic duty (S3).

Furthermore the motors are equipped with thermal winding monitoring. The thermal winding monitor protects the motor winding from overheating. Bimetallic strips are used for this as standard.

The connection cable has bare cable ends and is 10 m long as standard. The “A” model is equipped with a float switch and shockproof plug.

Seal

There is a sealing chamber between the motor and hydraulics. It is filled with medical white oil and protects the motor from media ingress by the seal on pump side. Pump-side and motor-side sealing is available in different versions depending on the motor type:

• MTC 32F39.16: mechanical seal on the fluid side, two rotary shaft seals on the motor side
• MTC 32F49.17, …55.13 and MTC 40: two independently acting mechanical seals

• Pump
• 10-metre connection cable with bare cable end
• A version with attached float switch and shockproof plug
• Installation and operating instructions

Example:	Wilo-EMU FA 20.54E + FK 17.1-6/16KEx
Hydraulics:	FA 20.54E
FA	Submersible sewage pump
20	x10 = nominal diameter pressure connection, e.g. DN 200
54	Performance indicator
E	Type of impeller: W = Vortex impeller E = Single-channel impeller Z = Two-channel impeller D = Three-channel impeller V = Four-channel impeller
Motor:	FK 17.1-6/16KEx
FK	Motor type: T = surface-cooled motor without cooling system FK, FKT, HC = self-cooling motor with active cooling system
17.1	Size
6	Number of poles
16	x10 = package length in mm
K	Seal version: H = rotary shaft seal/mechanical seal G = two separate mechanical seals K = block seal cartridge with two mechanical seals
Ex	Ex-rated

• Mains connection: 3~400 V, 50 Hz
• Submerged operating mode: S1
• Non-immersed operating mode: S1 or S2
• Protection class: IP68
• Insulation class: H
• Fluid temperature: 3…40 °C, higher temperatures on request
• Free ball passage of 45…130 mm
• Max. immersion depth: 20 m

• Housing components: EN-GJL or EN-GJS
• Impeller: EN-GJL or EN-GJS
• Static gaskets: NBR or FPM
• Fluid-side seal: Mechanical seal made of SiC/SiC
• Seal on the motor side:
  • Rotary shaft seal NBR
  • Mechanical seal made of SiC/SiC or carbon ceramic
• Shaft: Stainless steel 1.4021

Submersible sewage pump as submersible monobloc unit for stationary and portable wet well and dry well installation.

Hydraulics

The outlet on the pressure side is designed as horizontal flange connection. The maximum possible dry matter content is 8 %, depending on the hydraulics and impeller type. The following impeller shapes are used:

• Vortex impeller (W)
• Single-channel impeller (E)
• Two-channel impeller (Z)
• Three-channel impeller (D)
• Four-channel impeller (V)

The sewer hydraulics are equipped with an impeller wear ring and casing wear ring made of hardened material. These contribute long-term to ensuring the uniform efficiency of the unit and minimizing maintenance costs.

Motor

Surface-cooled motors (T motor) do not have a cooling system of their own and emit their heat directly to the surrounding fluid via the housing parts. The motors can therefore be used in immersed state for continuous duty. Depending on their size, they can also be used in non-immersed state for short-time duty.

The self-cooling motors (FK, FKT, HC motors) have an active cooling system and transfer their waste heat to the medium being pumped by means of an integrated heat exchanger. Therefore, these motors are suitable for continuous duty in immersed and non-immersed condition, and therefore also for dry well installation.

All motors have a sealing chamber that protects the motor from fluid ingress. It can be accessed from the outside and can optionally be monitored with a rod electrode. All filling fluids used are potentially biodegradable and environmentally safe.

The connection cable has bare cable ends and a length of 10 m or a customer-specific length. The cable inlet on T, HC and FKT motors is longitudinally watertight.

Seal

Fluid-side and motor-side sealing is possible in the following versions depending on the motor type:

• Version H: Mechanical seal for the fluid side, rotary shaft seal for the motor side
• Version G: Two independently-acting mechanical seals
• Version K: Block seal cartridge with two independently acting mechanical seals

High efficiency motors

In addition to the standard motors, high-efficiency motors with IE3 classification (in accordance with IEC 60034-30) are also available. As these have the same basis as the standard motors, they have the same features and functions. This means that the same hydraulic systems are also available.

Ex rating

The motors are available with Ex rating in accordance with ATEX and FM.

• Submersible sewage pump ready for connection
• Connection cable with bare cable end
• Fitted accessories
• Operating and maintenance manual

Example:	Wilo-Drain TS 40/10-A
TS	Submersible drainage pump
40	Nominal diameter discharge port (Rp 1½)
10	Max. delivery head
A	Version with float switch and plug

• Mains connection: 1~ 230 V, 50 Hz or 3~ 400 V, 50 Hz
• Protection class: IP68
• Max. immersion depth: 7 m
• Fluid temperature: 3 … 35 °C
• Cable length: 10 m
• Pressure port: Rp 1½

• Motor housing: 1.4301
• Pump housing: PP-GF30
• Impeller: PP-GF30
• Shaft: 1.4404
• Seal:
  • On motor side: SiC/SiC
  • Fluid side: SiC/SiC
• Static gasket: NBR

Submersible drainage pump as submersible monobloc unit for stationary and portable wet well installation.

Hydraulics

The outlet on the pressure side is designed as a vertical threaded connection Rp 1½ with an integrated non-return valve. Semi-open channel impellers are the impeller type used.

Motor

Single-phase or three-phase current version surface-cooled motors with thermal motor monitoring. In the single-phase version, motor monitoring switches automatically. The waste heat is given off directly to the surrounding fluid via the housing components. As a result, these units must always be immersed for permanent or intermittent operation.

A sealing chamber protects the motor from fluid ingress. The filling fluid used is potentially biodegradable and environmentally safe.

The detachable connection cable has a length of 10 metres and has bare cable ends. A version is equipped with a float switch and plug.

Seal

Fluid-side and motor-side sealing is performed by bidirectional mechanical seals.

• Pump with 10 m connection cable and bare cable end
• A-model with float switch and plug
• Hose connection
• Installation and operating instructions

Example:	Wilo-SiBoost Smart FC 4 Helix V 3606-ES
SiBoost	System for pressure boosting in the commercial area
Smart	Smart Controller SC control device
FC	Control of the respective base-load pump by frequency converters
4	Number of pumps
Helix V	Pump series
36	Nominal volume flow [m3/h] of the single pump
06	Number of single pump stages
ES	Stainless-steel design of series 22.., 36.., 52..

• Mains connection 3~230 V/400 V ±10 %, 50 Hz
• Max. fluid temperature 50 °C (70 °C optional)
• Max. ambient temperature of 40 °C
• Operating pressure 16 bar (25 bar optional)
• Inlet pressure 10 bar
• Nominal connection diameters on discharge side R 1½ – DN 200
• Nominal connection diameter on the intake side R 1½” – DN 200
• Rated speed 2850 rpm
• Protection class IP54 (SC control device)
• Fuse protection A on mains side, AC 3 according to motor power and EVU regulations
• Approved fluids (other fluids on request): Note regarding fluids: Approved fluids are generally waters which do not attack the materials used, neither chemically nor mechanically, and do not contain any abrasive or long-fibre constituents. System in accordance with DIN 1988 (EN 806)
  • Drinking water and hot water
  • Cooling water
  • Firefighting water

Helix V 4 to Helix V 16

• Impellers, guide vanes, stage housing made of stainless steel 1.4307
• Pump housing of stainless steel 1.4301
• Shaft of stainless steel 1.4057
• 1.4404 shaft protection sleeve
• O-Ring gaskets made of EPDM (FKM gasket on request)
• Pipework made of 1.4301 stainless steel

 

Helix V 22 to Helix V 52

• Impellers, guide vanes, stage housing made of stainless steel 1.4307
• Pump housing made of 1.4308 stainless steel or cataphoretically coated EN-GJL 250 grey cast iron
• Shaft of stainless steel 1.4057
• 1.4404 shaft protection sleeve
• O-Ring gaskets made of EPDM (FKM gasket on request)
• Pipework made of 1.4301 stainless steel

• Base frame: galvanised steel, with height-adjustable vibration absorbers for comprehensive insulation against structure-borne noise; other versions on request
• Pipework: complete pipework made of stainless steel, suitable for the connection of all conventional piping materials; the pipework is dimensioned according to the overall hydraulic performance of the pressure boosting system
• Pumps: 2 to 4 pumps switched in parallel of the Helix V 4 to Helix V 52 series; all pump parts that come in contact with the fluid are made of stainless steel for the Helix VE 4 to VE 16 series or of stainless steel/grey cast iron with cataphoretic coating for the Helix VE 22 to Helix VE 52 series; other versions on request. KTW/WRAS/ACS approval for parts that come in contact with the fluid
• Valves: Each pump is fitted on the suction and pressure side with a standard shut-off device with DVGW approval mark and on the pressure side with a DVGW/KTW-approved non-return valve.
• Diaphragm pressure vessel: 8 l/PN 16 arranged on the discharge side with a diaphragm made of butyl rubber, with DVGW/KTW approval, completely safe in accordance with food safety laws; for testing and inspection purposes, with a ball valve with drain and throughflow fitting with DVGW/KTW approval in accordance with DIN 4807
• Pressure sensor: 4 to 20 mA, located on the discharge side for controlling the central Smart Controller SC
• Pressure indication: Pressure gauge (ø 63 mm) arranged on the discharge side; additional digital indication of the discharge pressure in the alphanumeric LC display of the Smart Controller SC
• Control device/controller: The system is equipped with a “Smart Controller” SC as standard; FC versions also equipped with a frequency converter

• Factory-mounted, ready-for-connection pressure-boosting system checked for functionality and impermeability
• Packaging
• Installation and operating instructions

Example:	MHIL 302-E-3-400-50-2-IE3
MHIL	Multistage horizontal high-pressure centrifugal pump
3	Flow rate in m3/h
02	Number of impellers
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

• 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 220 V (±10 %), 50 Hz (Δ), 400 V (±10 %), 50 Hz (Y) or optionally 460 V (±10 %), 60 Hz (Y)
• Fluid temperature -15 to +90 °C
• Max. operating pressure 10 bar
• Max. inlet pressure 6 bar
• Protection class 1~: IPX4; 3~: IP54
• Nominal diameters of pipe connections on pressure side: Rp 1 or Rp 1 ¼, depending on type
• Nominal diameters of pipe connections on suction side Rp 1, Rp 1 ¼ or Rp 1 ½, depending on type

• Impellers of stainless steel 1.4301
• Stage chambers made of 1.4301 stainless steel
• Shaft of stainless steel 1.4301 (AISI 304) or 1.4057 (AISI 431 L)
• EPDM seal
• Housing cover EN-GJL-250 (KTL-coated)
• Lower housing section EN-GJL-250 (KTL-coated)
• Mechanical seal made of SiC/carbon
• Bearing of tungsten carbide
• Pump support foot EN-GJL-250 (KTL-coated)

• Pump
• Installation and operating instructions

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

• 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); same motor also: 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. inlet pressure of 6 bar
• Protection class 1~: IPX4; 3~: IP54
• Nominal diameters of pipe connections: Rp 1, Rp 1 ¼ or Rp 1 ½, depending on type

• 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)
• EPDM version of mechanical seal: B carbon/silicon carbide, FKM version: Silicon carbide/B-carbon
• Bearing tungsten carbide/aluminium oxide
• Pump support foot aluminium

• Pump
• Installation and operating instructions