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Wilo-Sub TWI 8 | Wilo
Your advantages
Wilo-Sub TWI 8

Your advantages

  • Long service life thanks to corrosion-resistant stainless steel, optionally in V4A quality
  • ACS certified for domestic hot 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

Series description
Sub TWI 8

Design

Multistage 8" 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 semi-axial impellers
  • Integrated non-return valve
  • NEMA coupling
  • Three-phase motor
  • Hermetically cast motors
  • Rewindable motors

Typekey

Example:

Wilo-Sub TWI 8.80-02-C-SD

TWI

Submersible pump

8

Diameter of the hydraulic unit in inches ["]

80

Rated volume flow [m3/h]

02

Number of hydraulic stages

C

Series generation

SD

Starting modeWithout = direct startingSD = star/delta startup

Technical data

  • Mains connection: 3~400 V, 50 Hz
  • Submerged operating mode: S1
  • Fluid temperature:
    • Hermetically cast motors: 3-20 °C or 3-30 °C (depending on type)
    • Rewindable motors (SD-R): 3-30 °C (depending on type)
  • Minimum motor flow: 0.1-0.5 m/s (depending on type)
  • Max. sand content: 50 g/m3
  • Max. number of starts: 10-20/h (depending on type)
  • Max. immersion depth: 100 - 350 m (depending on type)
  • Protection class: IP 68
  • Pressure port: Rp 5

Materials

  • Hydraulic housing: Stainless steel 1.4301
  • Impellers: Stainless steel 1.4301
  • Hydraulic shaft: Stainless steel 1.4057
  • Motor housing: EN-GJL or stainless steel 1.4301
  • Motor shaft: Stainless steel 1.4021, 1.4301 or 1.4305

Construction

Submersible pump with ACS approval for vertical or horizontal installation.

Hydraulics

Multistage submersible-motor pump with 6" or 8" NEMA connection and 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

Three-phase motor for direct or star-delta start. Sealed, hermetically cast motor, resin-impregnated, with enamel-insulated winding or rewindable motor with PVC-insulated winding, self-lubricating bearing, with water-glycol filling. NU 611, NU 8...-series motors can also be filled with drinking water (T version).

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 and motor ready assembled
  • 4/8/10 m connecting cable approved for drinking water (cross-section: 4x2.5 mm2 or 4x4 mm2 or single conductor)
  • Installation and operating instructions
Documents

General overview

General Overview 2022 - International version

Edition 2022
Page format 209.9 x 297.0 mm
Number of pages 78
PDF (38 MB)

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
Page format 209.9 x 297.0 mm
Number of pages 24
PDF (4 MB)

Certificate REACH

REACH Regulation

Edition 2021-05
Page format 209.9 x 297.0 mm
Number of pages 4
PDF (212 KB)

Certificate

Wilo-Sub TWI

Article Number 6080451
Edition 1612
Page format A4
Number of pages 14
PDF (388 KB)
Product list
Number of results: 34
4 … 93 kW
[34]
Product descriptionMotor diameter ØNumber of stagesRated power P2ConnectionArticle number
Sub TWI 8.80-01-C
5 in (")
1
4 kW
Rp 5
6075400
Sub TWI 8.80-02-C-SD
5 in (")
2
7.5 kW
Rp 5
6075401
Sub TWI 8.80-03-C-SD
5 in (")
3
11 kW
Rp 5
6075402
Sub TWI 8.80-04-C-SD
5 in (")
4
15 kW
Rp 5
6075403
Sub TWI 8.80-05-C-SD
5 in (")
-
18.5 kW
Rp 5
6075404
Sub TWI 8.80-06-C-SD
5 in (")
-
22 kW
Rp 5
6075405
Sub TWI 8.80-07-C-SD
5 in (")
-
30 kW
Rp 5
6075406
Sub TWI 8.80-08-C-SD
5 in (")
-
30 kW
Rp 5
6075407
Sub TWI 8.80-09-C-SD
5 in (")
-
30 kW
Rp 5
6075408
Sub TWI 8.80-10-C-SD
5 in (")
10
37 kW
Rp 5
6075409
Sub TWI 8.80-11-C-SD
5 in (")
11
45 kW
Rp 5
6075410
Sub TWI 8.80-12-C-SD
8 in (")
12
55 kW
Rp 5
6075411
Sub TWI 8.80-15-C-SD
8 in (")
15
75 kW
Rp 5
6075412
Sub TWI 8.80-16-C-SD
8 in (")
16
75 kW
Rp 5
6075413
Sub TWI 8.80-18-C-SD
8 in (")
18
75 kW
Rp 5
6075414
Sub TWI 8.80-20-C-SD
8 in (")
20
75 kW
Rp 5
6075415
Sub TWI 8.90-01-C
5 in (")
1
5.5 kW
Rp 5
6075416
Sub TWI 8.90-02-C-SD
5 in (")
2
9 kW
Rp 5
6075417
Sub TWI 8.90-03-C-SD
5 in (")
3
15 kW
Rp 5
6075418
Sub TWI 8.90-04-C-SD
5 in (")
4
18.5 kW
Rp 5
6075419
Sub TWI 8.90-05-C-SD
5 in (")
5
22 kW
Rp 5
6075420
Sub TWI 8.90-06-C-SD
5 in (")
6
30 kW
Rp 5
6075421
Sub TWI 8.90-07-C-SD
5 in (")
-
37 kW
Rp 5
6075422
Sub TWI 8.90-08-C-SD
5 in (")
-
37 kW
Rp 5
6075423
Sub TWI 8.90-09-C-SD
5 in (")
-
45 kW
Rp 5
6075424
Sub TWI 8.90-10-C-SD
8 in (")
-
55 kW
Rp 5
6075425
Sub TWI 8.90-11-C-SD
8 in (")
-
55 kW
Rp 5
6075426
Sub TWI 8.90-12-C-SD
8 in (")
-
55 kW
Rp 5
6075427
Sub TWI 8.90-13-C-SD
8 in (")
13
75 kW
Rp 5
6075428
Sub TWI 8.90-14-C-SD
8 in (")
14
75 kW
Rp 5
6075429
Sub TWI 8.90-15-C-SD
8 in (")
15
75 kW
Rp 5
6075430
Sub TWI 8.90-17-C-SD
8 in (")
17
93 kW
Rp 5
6075431
Sub TWI 8.90-18-C-SD
8 in (")
18
93 kW
Rp 5
6075432
Sub TWI 8.90-20-C-SD
8 in (")
20
93 kW
Rp 5
6075433