Centrifugal pump Sub TWU 4-QC series

waterelectricsubmersible

Short features

• Parts that come in contact with fluids are corrosion-free
• Integrated non-return valve
• Low-wearing due to floating impellers
• Maintenance-friendly motor
• Quick and easy extension of motor cable, without dismantling the hydraulics

Product variants (excerpt table)
Product description | Mains connection | Motor diameter Ø | Number of stages | Rated power P2 | MEI | Connection | Article number
Sub TWU 4.02-07-DM-QC-C | 3~400 V, 50 Hz | 4 in (") | 7 | 0.37 kW | 0.7 | Rp 1¼ | 6046682
Sub TWU 4.02-07-EM-QC-C | 1~230 V, 50 Hz | 4 in (") | 7 | 0.37 kW | 0.7 | Rp 1¼ | 6046685
Sub TWU 4.02-10-DM-QC-C | 3~400 V, 50 Hz | 4 in (") | 10 | 0.55 kW | 0.7 | Rp 1¼ | 6046681
Sub TWU 4.02-10-EM-QC-C | 1~230 V, 50 Hz | 4 in (") | 10 | 0.55 kW | 0.7 | Rp 1¼ | 6046684
Sub TWU 4.02-14-DM-QC-C | 3~400 V, 50 Hz | 4 in (") | 14 | 0.75 kW | 0.7 | Rp 1¼ | 6046680
Sub TWU 4.02-14-EM-QC-C | 1~230 V, 50 Hz | 4 in (") | 14 | 0.75 kW | 0.7 | Rp 1¼ | 6046683
Sub TWU 4.02-20-DM-QC-C | 3~400 V, 50 Hz | 4 in (") | 20 | 1.1 kW | 0.7 | Rp 1¼ | 6049372
Sub TWU 4.02-20-EM-QC-C | 1~230 V, 50 Hz | 4 in (") | 20 | 1.1 kW | 0.7 | Rp 1¼ | 6049365
Sub TWU 4.04-05-DM-QC-C | 3~400 V, 50 Hz | 4 in (") | 5 | 0.37 kW | 0.7 | Rp 1¼ | 6049373
Sub TWU 4.04-05-EM-QC-C | 1~230 V, 50 Hz | 4 in (") | 5 | 0.37 kW | 0.7 | Rp 1¼ | 6049366
Sub TWU 4.04-07-DM-QC-C | 3~400 V, 50 Hz | 4 in (") | 7 | 0.55 kW | 0.7 | Rp 1¼ | 6049374
Sub TWU 4.04-07-EM-QC-C | 1~230 V, 50 Hz | 4 in (") | 7 | 0.55 kW | 0.7 | Rp 1¼ | 6049367
Sub TWU 4.04-09-DM-QC-C | 3~400 V, 50 Hz | 4 in (") | 9 | 0.75 kW | 0.7 | Rp 1¼ | 6049375
Sub TWU 4.04-09-EM-QC-C | 1~230 V, 50 Hz | 4 in (") | 9 | 0.75 kW | 0.7 | Rp 1¼ | 6049368
Sub TWU 4.04-14-DM-QC-C | 3~400 V, 50 Hz | 4 in (") | 14 | 1.1 kW | 0.7 | Rp 1¼ | 6049376
Sub TWU 4.04-14-EM-QC-C | 1~230 V, 50 Hz | 4 in (") | 14 | 1.1 kW | 0.7 | Rp 1¼ | 6049369
Sub TWU 4.04-18-DM-QC-C | 3~400 V, 50 Hz | 4 in (") | 18 | 1.5 kW | 0.7 | Rp 1¼ | 6049377
Sub TWU 4.04-27-DM-QC-C | 3~400 V, 50 Hz | 4 in (") | 27 | 2.2 kW | 0.7 | Rp 1¼ | 6049378
Sub TWU 4.04-35-DM-QC-C | 3~400 V, 50 Hz | 4 in (") | 35 | 3 kW | 0.7 | Rp 1¼ | 6049379
Sub TWU 4.08-05-DM-QC-C | 3~400 V, 50 Hz | 4 in (") | 5 | 0.75 kW | 0.4 | Rp 2 | 6081635
Sub TWU 4.08-05-EM-QC-C | 1~230 V, 50 Hz | 4 in (") | 5 | 0.75 kW | 0.4 | Rp 2 | 6081633
Sub TWU 4.08-07-DM-QC-C | 3~400 V, 50 Hz | 4 in (") | 7 | 1.1 kW | 0.4 | Rp 2 | 6081636
Sub TWU 4.08-07-EM-QC-C | 1~230 V, 50 Hz | 4 in (") | 7 | 1.1 kW | 0.4 | Rp 2 | 6081634
Sub TWU 4.08-10-DM-QC-C | 3~400 V, 50 Hz | 4 in (") | 10 | 1.5 kW | 0.4 | Rp 2 | 6081637
Sub TWU 4.08-15-DM-QC-C | 3~400 V, 50 Hz | 4 in (") | 15 | 2.2 kW | 0.4 | Rp 2 | 6081638
Sub TWU 4.08-21-DM-QC-C | 3~400 V, 50 Hz | 4 in (") | 21 | 3 kW | 0.4 | Rp 2 | 6081639

Design
Multistage 4" submersible pump with quick-connecting cable in a jacketed design for vertical and horizontal installation.

Application
For pumping rainwater and industrial water from boreholes and wells for sprinkling, irrigation and water supply.

Equipment / function

• Integrated non-return valve
• Discharge port according to NEMA
• Single-phase current motor with capacitor box with thermal motor protection

Type key (example and explanation)
Example: Wilo-Sub TWU 4.02-07-EM-QC-C
TWU = Series
4 = Diameter of the hydraulic unit in inches
02 = Rated volume flow [m3/h]
07 = Number of hydraulic stages
EM = Mains connection: EM = Single-phase current, DM = Three-phase current
QC = Version with Quick Connect cable
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: 0.08 m/s
• Max. sand content: 50 g/m3
• Max. number of starts: 20/h
• Max. immersion depth: 200 m
• IP rating: IP68
• Discharge port: Rp 1¼ – Rp 2

Materials

• Hydraulics housing: 1.4301
• Impellers: Noryl
• Hydraulic shaft: 1.4104
• Motor housing: 1.4301
• Motor shaft: 1.4305

Construction
Hydraulics
Multistage submersible pump with radial or semi-axial impellers in sectional construction and integrated non-return valve. Discharge port with threaded flange and female thread. All parts that come in contact with the fluid are made of corrosion-free materials.

Motor
Single-phase or three-phase current motor for direct starting. Sealed motor with lacquer-insulated, resin-covered winding, water-glycol filling and self-lubricating motor bearings.

Cooling

• The motor is cooled by the pumped fluid. Always operate the pump in a submerged state.
• Vertical installation is possible with or without cooling jacket.
• Horizontal installation must be performed in conjunction with a cooling jacket.

Scope of delivery

• Hydraulics + motor completely assembled
• 1.5 or 1.75 m Quick Connect cable
• Single-phase version including switchbox with capacitor, thermal motor protection and On/Off switch
• Installation and operating instructions

Accessories

• Cooling shroud
• Diaphragm expansion tank
• Gate valve
• Float switch
• Pressure switch
• Electrode
• Switchgear
• Alarm switchgear
• Casting resin kit
• Connection cable

caractéristiques / spécifications techniques

• Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
• Submerged operating mode: S1
• Fluid temperature range: 3 – 30 °C
• Minimum flow at motor: 0.08 m/s
• Maximum sand content: 50 g/m3
• Maximum starts: 20/h
• Maximum immersion depth: 200 m
• Protection class: IP68
• Discharge thread sizes: Rp 1¼ – Rp 2