Wilo-Sub TWI 4

Name decoding

for example:	Wilo-Sub TWI 4.01-09-C
TWI	Submersible pump
4	Diameter of hydraulic part in inches ["]
01	Nominal flow [m³/h]
09	Number of hydraulic sections
C	Pump generation designation

Overview Model overview Those. information Download Colors DOP, CAD

Overview

Long service life due to the use of corrosion-resistant stainless steel, optional V4A steel
ACS certified for drinking water applications
High level of flexibility in the 4-inch, 6-inch, 8-inch and 10-inch versions
Wide capacity range from 1 to 250 m³/h

Type
Multi-section 4" submersible pump in tie-bar design for vertical or horizontal installation

Application

Water supply from wells and cisterns, drinking water in particular
Supply of service water
Use in public water supply systems, for irrigation and watering
Pressure boosting
Water level lowering
Pumping water for industrial use
Pumping water without long fibrous and abrasive impurities

Equipment/function

Multi-sectional submersible pump with radial or mixed flow impellers
Built-in check valve
Coupling according to NEMA
Single-phase or three-phase motor
Sealed motors

Scope of delivery

Complete hydraulic section with motor
1.5/2.5 m power cable with drinking water approvals (cross section: 4x1.5 mm2)
Single-phase version incl. switchgear with capacitor, thermal motor relay and on/off switch
Installation and operating instructions

Model overview

Products

Show

Product designation	Mains connection	Motor diameter DM	Pressure head max. H_max	Max. Q_max	Nominal motor power P₂	Gross weight approx. m	Article number
Sub TWI 4.03-52-C (3~400 V, 50 Hz)	3~400 V, 50 Hz	98 mm	314.3 m	4.7 m³/h	3.70 kW	38.4 kg	6072926
Sub TWI 4.05-38-C (3~400 V, 50 Hz)	3~400 V, 50 Hz	98 mm	222.6 m	6.8 m³/h	3.70 kW	34.6 kg	6072935
Sub TWI 4.05-44-C (3~400 V, 50 Hz)	3~400 V, 50 Hz	98 mm	256.1 m	6.8 m³/h	4.00 kW	37.9 kg	6072936
Sub TWI 4.09-21-C (3~400 V, 50 Hz)	3~400 V, 50 Hz	98 mm	115.6 m	12.2 m³/h	3.70 kW	36.6 kg	6072943
Sub TWI 4.09-25-C (3~400 V, 50 Hz)	3~400 V, 50 Hz	98 mm	135.6 m	12.2 m³/h	3.70 kW	39.7 kg	6072944
Sub TWI 4.09-30-C (3~400 V, 50 Hz)	3~400 V, 50 Hz	98 mm	165.5 m	12.2 m³/h	5.50 kW	70.1 kg	6072945
Sub TWI 4.09-37-C (3~400 V, 50 Hz)	3~400 V, 50 Hz	98 mm	202.9 m	12.2 m³/h	5.50 kW	74.4 kg	6072946
Sub TWI 4.01-09-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	48.9 m	1.8 m³/h	0.37 kW	11.5 kg	6079200
Sub TWI 4.01-14-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	74.8 m	1.8 m³/h	0.55 kW	13.6 kg	6079201
Sub TWI 4.01-18-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	97.8 m	1.8 m³/h	0.55 kW	14.4 kg	6079202
Sub TWI 4.01-21-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	111.7 m	1.8 m³/h	0.75 kW	16.2 kg	6079203
Sub TWI 4.01-28-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	150.0 m	1.8 m³/h	1.10 kW	30.9 kg	6079204
Sub TWI 4.01-36-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	198.3 m	1.8 m³/h	1.10 kW	21.5 kg	6079205
Sub TWI 4.01-42-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	231.9 m	1.8 m³/h	1.50 kW	24.8 kg	6079206
Sub TWI 4.02-09-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	50.7 m	2.9 m³/h	0.55 kW	12.5 kg	6079207
Sub TWI 4.02-13-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	72.6 m	2.9 m³/h	0.75 kW	14.6 kg	6079208
Sub TWI 4.02-18-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	99.8 m	2.9 m³/h	1.10 kW	16.8 kg	6079209
Sub TWI 4.02-23-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	131.1 m	2.9 m³/h	1.10 kW	17.9 kg	6079210
Sub TWI 4.02-28-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	161.8 m	2.9 m³/h	1.50 kW	21.2 kg	6079211
Sub TWI 4.02-33-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	190.9 m	2.9 m³/h	1.50 kW	22.3 kg	6079212
Sub TWI 4.02-40-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	227.8 m	2.9 m³/h	2.20 kW	28.1 kg	6079213
Sub TWI 4.02-48-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	270.6 m	2.9 m³/h	2.20 kW	30.0 kg	6079214
Sub TWI 4.03-06-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	35.5 m	4.7 m³/h	0.55 kW	11.9 kg	6079215
Sub TWI 4.03-09-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	52.9 m	4.7 m³/h	0.75 kW	13.7 kg	6079216
Sub TWI 4.03-12-Cl (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	71.3 m	4.7 m³/h	1.10 kW	15.6 kg	6079217
Sub TWI 4.03-15-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	91.9 m	4.7 m³/h	1.10 kW	16.3 kg	6079218
Sub TWI 4.03-18-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	108.4 m	4.7 m³/h	1.50 kW	18.8 kg	6079219
Sub TWI 4.03-22-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	132.7 m	4.7 m³/h	1.50 kW	19.6 kg	6079220
Sub TWI 4.03-25-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	149.7 m	4.7 m³/h	2.20 kW	23.5 kg	6079221
Sub TWI 4.03-29-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	172.7 m	4.7 m³/h	2.20 kW	24.4 kg	6079222
Sub TWI 4.03-33-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	197.8 m	4.7 m³/h	2.20 kW	26.1 kg	6079223
Sub TWI 4.05-04-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	23.5 m	6.8 m³/h	0.55 kW	11.7 kg	6079224
Sub TWI 4.05-06-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	35.2 m	6.8 m³/h	0.55 kW	12.2 kg	6079225
Sub TWI 4.05-08-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	47.2 m	6.8 m³/h	0.75 kW	13.6 kg	6079226
Sub TWI 4.05-12-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	71.1 m	6.8 m³/h	1.50 kW	17.5 kg	6079227
Sub TWI 4.05-17-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	100.0 m	6.8 m³/h	2.20 kW	21.4 kg	6079228
Sub TWI 4.05-21-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	122.9 m	6.8 m³/h	2.20 kW	23.3 kg	6079229
Sub TWI 4.05-25-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	144.4 m	6.8 m³/h	2.20 kW	23.5 kg	6079230
Sub TWI 4.09-05-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	28.1 m	12.2 m³/h	1.10 kW	16.2 kg	6079231
Sub TWI 4.09-07-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	39.6 m	12.2 m³/h	1.10 kW	17.2 kg	6079232
Sub TWI 4.09-10-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	54.7 m	12.2 m³/h	1.50 kW	20.7 kg	6079233
Sub TWI 4.09-12-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	66.4 m	12.2 m³/h	2.20 kW	25.1 kg	6079234
Sub TWI 4.09-15-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	82.5 m	12.2 m³/h	2.20 kW	26.5 kg	6079235
Sub TWI 4.01-09-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	48.9 m	1.8 m³/h	0.37 kW	10.5 kg	6079238
Sub TWI 4.01-14-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	74.8 m	1.8 m³/h	0.55 kW	12.5 kg	6079239
Sub TWI 4.01-18-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	97.8 m	1.8 m³/h	0.55 kW	13.3 kg	6079240
Sub TWI 4.01-21-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	111.7 m	1.8 m³/h	0.75 kW	15.0 kg	6079241
Sub TWI 4.01-28-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	150.0 m	1.8 m³/h	1.10 kW	17.5 kg	6079242
Sub TWI 4.01-36-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	198.3 m	1.8 m³/h	1.10 kW	32.1 kg	6079243
Sub TWI 4.01-42-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	231.9 m	1.8 m³/h	1.50 kW	23.1 kg	6079244
Sub TWI 4.02-09-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	50.7 m	2.9 m³/h	0.55 kW	11.4 kg	6079245
Sub TWI 4.02-13-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	72.6 m	2.9 m³/h	0.75 kW	13.4 kg	6079246
Sub TWI 4.02-18-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	99.8 m	2.9 m³/h	1.10 kW	15.4 kg	6079247
Sub TWI 4.02-23-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	131.1 m	2.9 m³/h	1.10 kW	16.5 kg	6079248
Sub TWI 4.02-28-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	161.8 m	2.9 m³/h	1.50 kW	19.5 kg	6079249
Sub TWI 4.02-33-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	190.9 m	2.9 m³/h	1.50 kW	23.3 kg	6079250
Sub TWI 4.02-40-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	227.8 m	2.9 m³/h	2.20 kW	24.1 kg	6079251
Sub TWI 4.02-48-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	270.6 m	2.9 m³/h	2.20 kW	27.3 kg	6079252
Sub TWI 4.03-06-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	35.5 m	4.7 m³/h	0.55 kW	11.2 kg	6079253
Sub TWI 4.03-09-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	52.9 m	4.7 m³/h	0.75 kW	12.5 kg	6079254
Sub TWI 4.03-12-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	71.3 m	4.7 m³/h	1.10 kW	14.2 kg	6079255
Sub TWI 4.03-15-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	91.9 m	4.7 m³/h	1.10 kW	14.9 kg	6079256
Sub TWI 4.03-18-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	108.4 m	4.7 m³/h	1.50 kW	16.6 kg	6079257
Sub TWI 4.03-22-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	132.7 m	4.7 m³/h	1.50 kW	17.4 kg	6079258
Sub TWI 4.03-25-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	149.7 m	4.7 m³/h	2.20 kW	19.5 kg	6079259
Sub TWI 4.03-29-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	172.7 m	4.7 m³/h	2.20 kW	20.4 kg	6079260
Sub TWI 4.03-33-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	197.8 m	4.7 m³/h	2.20 kW	23.1 kg	6079261
Sub TWI 4.03-39-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	236.0 m	4.7 m³/h	3.00 kW	31.7 kg	6079262
Sub TWI 4.03-45-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	269.4 m	4.7 m³/h	3.00 kW	32.7 kg	6079263
Sub TWI 4.05-04-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	23.5 m	6.8 m³/h	0.55 kW	10.5 kg	6079264
Sub TWI 4.05-06-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	35.2 m	6.8 m³/h	0.55 kW	11.1 kg	6079265
Sub TWI 4.05-08-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	47.2 m	6.8 m³/h	0.75 kW	12.4 kg	6079266
Sub TWI 4.05-12-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	71.1 m	6.8 m³/h	1.50 kW	15.3 kg	6079267
Sub TWI 4.05-17-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	100.0 m	6.8 m³/h	2.20 kW	17.9 kg	6079268
Sub TWI 4.05-21-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	122.9 m	6.8 m³/h	2.20 kW	18.8 kg	6079269
Sub TWI 4.05-25-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	144.4 m	6.8 m³/h	2.20 kW	19.5 kg	6079270
Sub TWI 4.05-33-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	190.9 m	6.8 m³/h	3.00 kW	29.3 kg	6079271
Sub TWI 4.09-05-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	28.1 m	12.2 m³/h	1.10 kW	14.8 kg	6079272
Sub TWI 4.09-07-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	39.6 m	12.2 m³/h	1.10 kW	15.8 kg	6079273
Sub TWI 4.09-10-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	54.7 m	12.2 m³/h	1.50 kW	18.8 kg	6079274
Sub TWI 4.09-12-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	66.4 m	12.2 m³/h	2.20 kW	21.1 kg	6079275
Sub TWI 4.09-15-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	82.5 m	12.2 m³/h	2.20 kW	22.5 kg	6079276
Sub TWI 4.09-18-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	98.9 m	12.2 m³/h	3.00 kW	30.7 kg	6079277
Sub TWI 4.14-04-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	23.2 m	22.8 m³/h	1.10 kW	17.3 kg	6081540
Sub TWI 4.14-06-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	34.7 m	22.8 m³/h	1.50 kW	19.5 kg	6081541
Sub TWI 4.14-08-CI (1~230 V, 50 Hz)	1~230 V, 50 Hz	98 mm	46.3 m	22.8 m³/h	2.20 kW	24.8 kg	6081542
Sub TWI 4.14-04-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	23.2 m	22.8 m³/h	1.10 kW	15.8 kg	6081543
Sub TWI 4.14-06-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	34.7 m	22.8 m³/h	1.50 kW	18.3 kg	6081544
Sub TWI 4.14-08-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	46.3 m	22.8 m³/h	2.20 kW	21.4 kg	6081545
Sub TWI 4.14-11-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	63.7 m	22.8 m³/h	3.00 kW	26.1 kg	6081546
Sub TWI 4.14-13-CI (3~400 V, 50 Hz)	3~400 V, 50 Hz	95 mm	75.3 m	22.8 m³/h	3.00 kW	27.6 kg	6081547
Sub TWI 4.14-15-C (3~400 V, 50 Hz)	3~400 V, 50 Hz	98 mm	86.8 m	22.8 m³/h	4.00 kW	35.8 kg	6081548
Sub TWI 4.14-17-C (3~400 V, 50 Hz)	3~400 V, 50 Hz	98 mm	98.6 m	22.8 m³/h	4.00 kW	37.3 kg	6081549
Sub TWI 4.14-20-C (3~400 V, 50 Hz)	3~400 V, 50 Hz	98 mm	116.1 m	22.8 m³/h	5.50 kW	77.2 kg	6081550
Sub TWI 4.14-23-C (3~400 V, 50 Hz)	3~400 V, 50 Hz	98 mm	133.6 m	22.8 m³/h	5.50 kW	82.5 kg	6081551
Sub TWI 4.14-27-C (3~400 V, 50 Hz)	3~400 V, 50 Hz	98 mm	156.7 m	22.8 m³/h	7.50 kW	92.5 kg	6081552
Sub TWI 4.14-31-C (3~400 V, 50 Hz)	3~400 V, 50 Hz	98 mm	180.0 m	22.8 m³/h	7.50 kW	101.5 kg	6081553

Those. information

Technical Specifications

Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
Operating mode in immersed state: S1
Temperature of pumped liquid: 3 - 30 °C
Minimum motor flow speed: 0.1 m/sec.
Max. sand content: 50 g/m3
Max. number of starts: 20/hour
Max. immersion depth: 150 m
Protection class: IP68
Pressure connection: Rp 1¼ - Rp 2

Materials

Casing hydraulic section: stainless steel 1.4301
Impellers: Stainless steel 1.4301
Hydraulic shaft: Stainless steel 1.4057
Motor housing: Stainless steel 1.4301
Motor shaft: Stainless steel 1.4305

Description/construction
Submersible pump with ACS approval for vertical or horizontal installation.

Hydraulic part

Multistage submersible pump with NEMA connection and radial impellers in split casing design. Integral non-return valve. All parts in contact with pumped liquid are made of corrosion-resistant materials.

Electric motor

Corrosion-proof single-phase or three-phase direct start electric motor. Encapsulated hermetically sealed stator with enameled windings, self-lubricating bearings, water-glycol mixture filling.

Cooling

Electric motor is cooled by pumped fluid. The motor must only be operated in immersed state. The maximum temperature limits for the pumped liquid and the minimum flow speed must be observed. Vertical installation can be carried out with or without a cooling jacket - at the customer's choice. Horizontal installation with a cooling jacket.

Pressure Cover

The pressure jacket makes it possible to install the unit directly into the piping system. The standard design of the pump inside the pressure jacket is without a non-return valve. The maximum supply pressure is 10 bar.

Download

Wilo-EMU D/DCH/K/KM/SCH (w/o motor)#Wilo-Sub TWI/TWU (w/o motor)#Wilo-Actun ZETOS-K8 (w/o motor)#Wilo-Actun ZETOS-K10 (w/o motor)	Download
Wilo-EMU	Download
Wilo-EMU D/DCH/K/KD/KM/NK/SCH / Wilo-Sub TWI/TWU / Wilo-Zetos K8	Download
Wilo-Sub TWI 4..., TWI 4-...-QC	Download
Documentation	Download

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