Wilo-Sub TWI 4 | Wilo

Wilo-Sub TWI 4

Wilo-TWI 4

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

Recommended services

Wilo-Live Assistant

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)

Download

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

Article Number	6061724
Edition	1110
Number of pages	28
Language	en

PDF (516 KB)

Download

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)

Download

Certificate

Wilo-Sub TWI

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

PDF (388 KB)

Download

Number of results: 104

1~230 V, 50 Hz [44]

3~400 V, 50 Hz [60]

0.37 … 7.5 kW

[104]

Product description	Motor diameter Ø	Number of stages	Rated power P₂	Minimum efficiency index (MEI)	Connection	Article number
Sub TWI 4.03-33-D (1~230 V, 50 Hz)	4 in (")	33	2.2 kW	≥0.7	Rp 1¼	6091347
Sub TWI 4.03-33-D (3~400 V, 50 Hz)	4 in (")	33	2.2 kW	≥0.7	Rp 1¼	6091346
Sub TWI 4.03-39-D (3~400 V, 50 Hz)	4 in (")	39	3 kW	≥0.7	Rp 1¼	6091348
Sub TWI 4.03-45-D (3~400 V, 50 Hz)	4 in (")	45	3 kW	≥0.7	Rp 1¼	6091349
Sub TWI 4.03-52-C (3~400 V, 50 Hz)	4 in (")	52	3.7 kW	≥0.7	Rp 1¼	6072926
Sub TWI 4.05-04-D (1~230 V, 50 Hz)	4 in (")	4	0.55 kW	≥0.4	Rp 1½	6091351
Sub TWI 4.05-04-D (3~400 V, 50 Hz)	4 in (")	4	0.55 kW	≥0.4	Rp 1½	6091350
Sub TWI 4.05-06-CI (1~230 V, 50 Hz)	4 in (")	6	0.55 kW	≥0.4	Rp 1½	6079225
Sub TWI 4.05-06-D (1~230 V, 50 Hz)	4 in (")	6	0.55 kW	≥0.4	Rp 1½	6091353
Sub TWI 4.05-06-D (3~400 V, 50 Hz)	4 in (")	6	0.55 kW	≥0.4	Rp 1½	6091352
Sub TWI 4.05-08-D (1~230 V, 50 Hz)	4 in (")	8	0.75 kW	≥0.4	Rp 1½	6091355
Sub TWI 4.05-08-D (3~400 V, 50 Hz)	4 in (")	8	0.75 kW	≥0.4	Rp 1½	6091354
Sub TWI 4.05-12-D (1~230 V, 50 Hz)	4 in (")	12	1.5 kW	≥0.4	Rp 1½	6091357
Sub TWI 4.05-12-D (3~400 V, 50 Hz)	4 in (")	12	1.5 kW	≥0.4	Rp 1½	6091356
Sub TWI 4.05-17-D (1~230 V, 50 Hz)	4 in (")	17	2.2 kW	≥0.4	Rp 1½	6091359
Sub TWI 4.05-17-D (3~400 V, 50 Hz)	4 in (")	17	2.2 kW	≥0.4	Rp 1½	6091358
Sub TWI 4.05-21-D (1~230 V, 50 Hz)	4 in (")	21	2.2 kW	≥0.4	Rp 1½	6091361
Sub TWI 4.05-21-D (3~400 V, 50 Hz)	4 in (")	21	2.2 kW	≥0.4	Rp 1½	6091360
Sub TWI 4.05-25-D (1~230 V, 50 Hz)	4 in (")	25	2.2 kW	≥0.4	Rp 1½	6091363
Sub TWI 4.05-25-D (3~400 V, 50 Hz)	4 in (")	25	2.2 kW	≥0.4	Rp 1½	6091362
Sub TWI 4.05-33-D (3~400 V, 50 Hz)	4 in (")	33	3 kW	≥0.4	Rp 1½	6091364
Sub TWI 4.05-38-C (3~400 V, 50 Hz)	4 in (")	38	3.7 kW	≥0.4	Rp 1½	6072935
Sub TWI 4.05-44-C (3~400 V, 50 Hz)	4 in (")	44	4 kW	≥0.4	Rp 1½	6072936
Sub TWI 4.09-05-D (1~230 V, 50 Hz)	4 in (")	5	1.1 kW	≥0.4	Rp 2	6091366
Sub TWI 4.09-05-D (3~400 V, 50 Hz)	4 in (")	5	1.1 kW	≥0.4	Rp 2	6091365
Sub TWI 4.09-07-CI (1~230 V, 50 Hz)	4 in (")	7	1.1 kW	≥0.4	Rp 2	6079232
Sub TWI 4.09-07-D (1~230 V, 50 Hz)	4 in (")	7	1.1 kW	≥0.4	Rp 2	6091368
Sub TWI 4.09-07-D (3~400 V, 50 Hz)	4 in (")	7	1.1 kW	≥0.4	Rp 2	6091367
Sub TWI 4.09-10-D (1~230 V, 50 Hz)	4 in (")	10	1.5 kW	≥0.4	Rp 2	6091370
Sub TWI 4.09-10-D (3~400 V, 50 Hz)	4 in (")	10	1.5 kW	≥0.4	Rp 2	6091369
Sub TWI 4.09-12-D (1~230 V, 50 Hz)	4 in (")	12	2.2 kW	≥0.4	Rp 2	6091372
Sub TWI 4.09-12-D (3~400 V, 50 Hz)	4 in (")	12	2.2 kW	≥0.4	Rp 2	6091371
Sub TWI 4.09-15-D (1~230 V, 50 Hz)	4 in (")	15	2.2 kW	≥0.4	Rp 2	6091374
Sub TWI 4.09-15-D (3~400 V, 50 Hz)	4 in (")	15	2.2 kW	≥0.4	Rp 2	6091373
Sub TWI 4.09-18-D (3~400 V, 50 Hz)	4 in (")	18	3 kW	≥0.4	Rp 2	6091375
Sub TWI 4.09-21-C (3~400 V, 50 Hz)	4 in (")	21	3.7 kW	≥0.4	Rp 2	6072943
Sub TWI 4.09-25-C (3~400 V, 50 Hz)	4 in (")	25	3.7 kW	≥0.4	Rp 2	6072944
Sub TWI 4.09-30-C (3~400 V, 50 Hz)	4 in (")	30	5.5 kW	≥0.4	Rp 2	6072945
Sub TWI 4.09-37-C (3~400 V, 50 Hz)	4 in (")	37	5.5 kW	≥0.4	Rp 2	6072946
Sub TWI 4.14-04-D (1~230 V, 50 Hz)	4 in (")	4	1.1 kW	≥0.4	Rp 2	6091377
Sub TWI 4.14-04-D (3~400 V, 50 Hz)	4 in (")	4	1.1 kW	≥0.4	Rp 2	6091376
Sub TWI 4.14-06-CI (1~230 V, 50 Hz)	4 in (")	6	1.5 kW	≥0.4	Rp 2	6081541
Sub TWI 4.14-06-D (1~230 V, 50 Hz)	4 in (")	6	1.5 kW	≥0.4	Rp 2	6091379
Sub TWI 4.14-06-D (3~400 V, 50 Hz)	4 in (")	6	1.5 kW	≥0.4	Rp 2	6091378
Sub TWI 4.14-08-D (1~230 V, 50 Hz)	4 in (")	8	2.2 kW	≥0.4	Rp 2	6091381
Sub TWI 4.14-08-D (3~400 V, 50 Hz)	4 in (")	8	2.2 kW	≥0.4	Rp 2	6091380
Sub TWI 4.14-11-D (3~400 V, 50 Hz)	4 in (")	11	3 kW	≥0.4	Rp 2	6091382
Sub TWI 4.14-13-D (3~400 V, 50 Hz)	4 in (")	13	3 kW	≥0.4	Rp 2	6091383
Sub TWI 4.14-15-C (3~400 V, 50 Hz)	4 in (")	15	4 kW	≥0.4	Rp 2	6081548
Sub TWI 4.14-17-C (3~400 V, 50 Hz)	4 in (")	17	4 kW	≥0.4	Rp 2	6081549