Wilo-Sub TWI 4 | Wilo

Wilo-Sub TWI 4

The reliable and corrosion-resistant multistage 4″ submersible pump.

Wilo-TWI 4

The reliable and corrosion-resistant multistage 4″ submersible pump.

Recommended services

Wilo-Live Assistant

Your advantages

Long service life thanks to corrosion-resistant stainless steel, optionally in V4A quality
ACS certified for drinking water applications
A high degree of flexibility thanks to versions in the 4, 6, 8 and 10-inch area
High range of performance from 1 to 250 m³/h

Environmentally friendly properties

Durable stainless steel pump material as well as very easy maintenance and repair provide for a long service life
Energy-efficient pump hydraulics

Sub TWI 4, (3~400 V)

Design

Multistage 4" submersible pump in tie strap version for vertical or horizontal installation

Application

For water and drinking water supply from boreholes and rainwater storage
Process water supply
For municipal water supply, sprinkling and irrigation
Pressure boosting
Lowering the water level
For pumping water in industrial applications
For pumping water without long-fibre and abrasive constituents

Equipment/function

Multistage submersible-motor pump with radial impellers
Integrated non-return valve
NEMA coupling
Single-phase or three-phase motor
Hermetically cast motors

Typekey

E.g.	Wilo-Sub TWI 4.01-09-C
TWI	Submersible pump
4	Diameter of the hydraulic unit in inches ["]
01	Rated volume flow [m³/h]
09	Number of hydraulic stages
C	Series generation

Technical data

Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
Submerged operating mode: S1
Fluid temperature: 3 – 30 °C
Minimum flow rate at motor: 0.1 m/s
Max. sand content: 50 g/m³
Max. number of starts: 20/h
Max. immersion depth: 150 m
Protection class: IP68
Pressure connection: Rp 1¼ – Rp 2

Materials

Hydraulic housing: 1.4301 stainless steel
Impellers: 1.4301 stainless steel
Hydraulics shaft: 1.4057 stainless steel
Motor housing: 1.4301 stainless steel
Motor shaft: 1.4305 stainless steel

Construction

Submersible pump with ACS approval for vertical or horizontal installation.

Hydraulics

Multistage submersible-motor pump with 4" NEMA connection and radial or semi-axial impellers with sectional construction. Integrated non-return valve. All parts that come in contact with the fluid are made of corrosion-free materials.

Motor

Corrosion-free single-phase or three-phase motor for direct starting. Sealed and hermetically cast motor, resin-impregnated, with enamel-insulated winding, self-lubricating bearing, with water-glycol filling.

Cooling

The motor is cooled by the pumped fluid. The motor must always be immersed when operated. The limit values for maximum fluid temperature and minimum flow velocity must be adhered to. Vertical installation is possible with or without cooling jacket. Horizontal installation must be performed in conjunction with a cooling jacket.

Pressure shroud

The pressure shroud is used for the direct installation of the unit in the pipe network. Standard models are without mounted non-return valves. The maximum inlet pressure is 10 bar.

Scope of delivery

Hydraulics + motor fully assembled
1.5/2.5 m connecting cable approved for drinking water (cross-section: 4x1.5 mm²)
Single-phase version including switchbox with capacitor, thermal motor protection and On/Off switch
Installation and operating instructions

Options

Hydraulics in stainless steel 1.4401
Motor in stainless steel 1.4401
60 Hz version

Accessories

Cooling jacket pipes
Pressure shroud (for configured units)
Diaphragm pressure vessel
Cable kits for drinking water and process water
Switchgears

Installation and operating instructions

Wilo-Sub TWI 4..., TWI 4-...-QC

Article Number	6061724
Edition	1110
Number of pages	344
Language	da, en, et, fi, lv, mk, no, pt, sl, sr

PDF (2 MB)

Wilo-Sub TWI 4..., TWI 4-...-QC

Article Number	6061724
Edition	1110
Number of pages	28
Language	en

PDF (516 KB)

Certification booklet

Wilo-Sub TWI 4, Wilo-Sub TWI 6/TWI 06, Wilo-Sub TWI 8/TWI 08, Wilo-Sub TWI 010

Article Number	6080451
Edition	2022-02
Number of pages	24
Language	language neutral

PDF (4 MB)

Group Statement

Group Statement REACH

Edition	2021-05
Number of pages	5
Language	language neutral

PDF (279 KB)

Certificate

Wilo-Sub TWI

Article Number	6080451
Edition	1612
Number of pages	14
Language	language neutral

PDF (388 KB)

Number of results: 97

Mains connection

1~230 V, 50 Hz [39]

3~400 V, 50 Hz [58]

Rated power P₂

0.37 … 7.5 kW

[97]

Product description	Mains connection	Motor diameter Ø	Number of stages	Rated power P₂	Minimum efficiency index (MEI)	Connection	Article number
Sub TWI 4.01-09-DM-D	3~400 V, 50 Hz	4 in (")	9	0.37 kW	≥0.4	Rp 1¼	6091300
Sub TWI 4.01-09-EM-D	1~230 V, 50 Hz	4 in (")	9	0.37 kW	≥0.4	Rp 1¼	6091301
Sub TWI 4.01-14-DM-D	3~400 V, 50 Hz	4 in (")	14	0.55 kW	≥0.4	Rp 1¼	6091302
Sub TWI 4.01-14-EM-D	1~230 V, 50 Hz	4 in (")	14	0.55 kW	≥0.4	Rp 1¼	6091303
Sub TWI 4.01-18-DM-D	3~400 V, 50 Hz	4 in (")	18	0.55 kW	≥0.4	Rp 1¼	6091304
Sub TWI 4.01-18-EM-D	1~230 V, 50 Hz	4 in (")	18	0.55 kW	≥0.4	Rp 1¼	6091305
Sub TWI 4.01-21-DM-D	3~400 V, 50 Hz	4 in (")	21	0.75 kW	≥0.4	Rp 1¼	6091306
Sub TWI 4.01-21-EM-D	1~230 V, 50 Hz	4 in (")	21	0.75 kW	≥0.4	Rp 1¼	6091307
Sub TWI 4.01-28-DM-D	3~400 V, 50 Hz	4 in (")	28	1.1 kW	≥0.4	Rp 1¼	6091308
Sub TWI 4.01-28-EM-D	1~230 V, 50 Hz	4 in (")	28	1.1 kW	≥0.4	Rp 1¼	6091309
Sub TWI 4.01-36-DM-D	3~400 V, 50 Hz	4 in (")	36	1.1 kW	≥0.4	Rp 1¼	6091310
Sub TWI 4.01-36-EM-D	1~230 V, 50 Hz	4 in (")	36	1.1 kW	≥0.4	Rp 1¼	6091311
Sub TWI 4.01-42-DM-D	3~400 V, 50 Hz	4 in (")	42	1.5 kW	≥0.4	Rp 1¼	6091312
Sub TWI 4.01-42-EM-D	1~230 V, 50 Hz	4 in (")	42	1.5 kW	≥0.4	Rp 1¼	6091313
Sub TWI 4.02-09-DM-D	3~400 V, 50 Hz	4 in (")	9	0.55 kW	≥0.7	Rp 1¼	6091314
Sub TWI 4.02-09-EM-D	1~230 V, 50 Hz	4 in (")	9	0.55 kW	≥0.4	Rp 1¼	6091315
Sub TWI 4.02-13-DM-D	3~400 V, 50 Hz	4 in (")	13	0.75 kW	≥0.7	Rp 1¼	6091316
Sub TWI 4.02-13-EM-D	1~230 V, 50 Hz	4 in (")	13	0.75 kW	≥0.7	Rp 1¼	6091317
Sub TWI 4.02-18-DM-D	3~400 V, 50 Hz	4 in (")	18	1.1 kW	≥0.7	Rp 1¼	6091318
Sub TWI 4.02-18-EM-D	1~230 V, 50 Hz	4 in (")	18	1.1 kW	≥0.7	Rp 1¼	6091319
Sub TWI 4.02-23-DM-D	3~400 V, 50 Hz	4 in (")	23	1.1 kW	≥0.7	Rp 1¼	6091320
Sub TWI 4.02-23-EM-D	1~230 V, 50 Hz	4 in (")	23	1.1 kW	≥0.7	Rp 1¼	6091321
Sub TWI 4.02-28-DM-D	3~400 V, 50 Hz	4 in (")	28	1.5 kW	≥0.7	Rp 1¼	6091322
Sub TWI 4.02-28-EM-D	1~230 V, 50 Hz	4 in (")	28	1.5 kW	≥0.7	Rp 1¼	6091323
Sub TWI 4.02-33-DM-D	3~400 V, 50 Hz	4 in (")	33	1.5 kW	≥0.7	Rp 1¼	6091324
Sub TWI 4.02-33-EM-D	1~230 V, 50 Hz	4 in (")	33	1.5 kW	≥0.7	Rp 1¼	6091325
Sub TWI 4.02-40-DM-D	3~400 V, 50 Hz	4 in (")	40	2.2 kW	≥0.7	Rp 1¼	6091326
Sub TWI 4.02-40-EM-D	1~230 V, 50 Hz	4 in (")	40	2.2 kW	≥0.7	Rp 1¼	6091327
Sub TWI 4.02-48-DM-D	3~400 V, 50 Hz	4 in (")	48	2.2 kW	≥0.7	Rp 1¼	6091328
Sub TWI 4.02-48-EM-D	1~230 V, 50 Hz	4 in (")	48	2.2 kW	≥0.7	Rp 1¼	6091329
Sub TWI 4.03-06-DM-D	3~400 V, 50 Hz	4 in (")	6	0.55 kW	≥0.7	Rp 1¼	6091330
Sub TWI 4.03-06-EM-D	1~230 V, 50 Hz	4 in (")	6	0.55 kW	≥0.7	Rp 1¼	6091331
Sub TWI 4.03-09-DM-D	3~400 V, 50 Hz	4 in (")	9	0.75 kW	≥0.7	Rp 1¼	6091332
Sub TWI 4.03-09-EM-D	1~230 V, 50 Hz	4 in (")	9	0.75 kW	≥0.7	Rp 1¼	6091333
Sub TWI 4.03-12-DM-D	3~400 V, 50 Hz	4 in (")	12	1.1 kW	≥0.7	Rp 1¼	6091334
Sub TWI 4.03-12-EM-D	1~230 V, 50 Hz	4 in (")	12	1.1 kW	≥0.7	Rp 1¼	6091335
Sub TWI 4.03-15-DM-D	3~400 V, 50 Hz	4 in (")	15	1.1 kW	≥0.7	Rp 1¼	6091336
Sub TWI 4.03-15-EM-D	1~230 V, 50 Hz	4 in (")	15	1.1 kW	≥0.7	Rp 1¼	6091337
Sub TWI 4.03-18-DM-D	3~400 V, 50 Hz	4 in (")	18	1.5 kW	≥0.7	Rp 1¼	6091338
Sub TWI 4.03-18-EM-D	1~230 V, 50 Hz	4 in (")	18	1.5 kW	≥0.7	Rp 1¼	6091339
Sub TWI 4.03-22-DM-D	3~400 V, 50 Hz	4 in (")	22	1.5 kW	≥0.7	Rp 1¼	6091340
Sub TWI 4.03-22-EM-D	1~230 V, 50 Hz	4 in (")	22	1.5 kW	≥0.7	Rp 1¼	6091341
Sub TWI 4.03-25-DM-D	3~400 V, 50 Hz	4 in (")	25	2.2 kW	≥0.7	Rp 1¼	6091342
Sub TWI 4.03-25-EM-D	1~230 V, 50 Hz	4 in (")	25	2.2 kW	≥0.7	Rp 1¼	6091343
Sub TWI 4.03-29-DM-D	3~400 V, 50 Hz	4 in (")	29	2.2 kW	≥0.7	Rp 1¼	6091344
Sub TWI 4.03-29-EM-D	1~230 V, 50 Hz	4 in (")	29	2.2 kW	≥0.7	Rp 1¼	6091345
Sub TWI 4.03-33-DM-D	3~400 V, 50 Hz	4 in (")	33	2.2 kW	≥0.7	Rp 1¼	6091346
Sub TWI 4.03-33-EM-D	1~230 V, 50 Hz	4 in (")	33	2.2 kW	≥0.7	Rp 1¼	6091347
Sub TWI 4.03-39-DM-D	3~400 V, 50 Hz	4 in (")	39	3 kW	≥0.7	Rp 1¼	6091348
Sub TWI 4.03-45-DM-D	3~400 V, 50 Hz	4 in (")	45	3 kW	≥0.7	Rp 1¼	6091349

Wilo-Sub TWI 4

The reliable and corrosion-resistant multistage 4″ submersible pump.

The reliable and corrosion-resistant multistage 4″ submersible pump.

Recommended services

Wilo-Live Assistant

Your advantages

Environmentally friendly properties

Design

Application

Equipment/function

Typekey

Technical data

Materials

Construction

Scope of delivery

Options

Accessories

Typekey

Technical data

Materials

Construction

Scope of delivery

Options

Accessories

Installation and operating instructions

Wilo-Sub TWI 4..., TWI 4-...-QC

Wilo-Sub TWI 4..., TWI 4-...-QC

Certification booklet

Wilo-Sub TWI 4, Wilo-Sub TWI 6/TWI 06, Wilo-Sub TWI 8/TWI 08, Wilo-Sub TWI 010

Group Statement

Group Statement REACH

Certificate

Wilo-Sub TWI

Mains connection

Rated power P2

Rated power P₂