Wilo-Sub TWU 3 HS

Wilo-Sub TWU 3 HS Multistage submersible pump 3" variable speed in casing version for vertical or horizontal installation

Overview

Constant, adjustable pressure thanks to external frequency converter with integrated control (TWU 3 HS-ECP)
Simple installation without additional pressure control sensors (TWU 3 HS-ECP)
High throughput thanks to built-in frequency converter with constant motor speed of 8400 rpm (TWU 3 HS-I)
Lower drilling and installation costs due to smaller diameter and less construction work
Extensive protection and monitoring features for safe operation

Type

3" variable speed multistage submersible pump in shrouded version for vertical or horizontal installation

Application

  • For water supply from private wells, wells and cisterns
  • For use in private water supply systems, irrigation and watering
  • For pumping water free of long fibrous and abrasive impurities

Equipment/function

  • Multistage submersible motor pump with radial impellers
  • Built-in non-return valve
  • Including frequency converter (HS-E...: external, HS-I...: integrated)
  • Thermal motor relay integrated in the frequency converter

Scope of delivery

  • Complete hydraulic section with motor
  • Frequency converter (TC)
  • Connection cable 1.75 m long, approved for drinking water supply (cross section: 4x1.5 mm2)
  • Installation and operating instructions

Model overview

Products


.
DefinitionMains Motor diameter DM Pressure head max. Hmax Power output max. Qmax Motor power P2 Gross weight approx. m Article
Sub TWU 3.02-02-HS-I 1~230 V, 50/60 Hz 76 mm 37.1 m 3.6 m³/h 0.60 kW 9.8 kW 6064276
Sub TWU 3.02-04-HS-I 1~230 V, 50/60 Hz 76 mm 74.7 m 3.6 m³/h 0.90 kW 11.0 kW 6064277
Sub TWU 3.02-05-HS-I 1~230 V, 50/60 Hz 76 mm 93.2 m 3.6 m³/h 0.90 kW 11.2 kW 6064278
Sub TWU 3.02-06-HS-I 1~230 V, 50/60 Hz 76 mm 112.4 m 3.6 m³/h 1.50 kW 12.8 kW 6064279
Sub TWU 3.03-02-HS-I 1~230 V, 50/60 Hz 76 mm 42.9 m 5.0 m³/h 0.60 kW 9.8 kW 6064280
Sub TWU 3.03-03-HS-I 1~230 V, 50/60 Hz 76 mm 64.3 m 5.0 m³/h 0.90 kW 10.7 kW 6064281
Sub TWU 3.03-04-HS-I 1~230 V, 50/60 Hz 76 mm 84.7 m 5.0 m³/h 1.50 kW 12.4 kW 6064282
Sub TWU 3.05-01-HS-I 1~230 V, 50/60 Hz 76 mm 25.2 m 6.5 m³/h 0.60 kW 9.5 kW 6064283
Sub TWU 3.05-03-HS-I 1~230 V, 50/60 Hz 76 mm 69.4 m 6.5 m³/h 0.90 kW 10.7 kW 6064284
Sub TWU 3.05-04-HS-I 1~230 V, 50/60 Hz 76 mm 90.4 m 6.5 m³/h 1.50 kW 12.4 kW 6064285
Sub TWU 3.02-04-HS-ECP-B 1~230 V, 50/60 Hz 76 mm 73.9 m 5.1 m³/h 0.60 kW 7.0 kW 6079396
Sub TWU 3.02-06-HS-ECP-B 1~230 V, 50/60 Hz 76 mm 107.0 m 5.0 m³/h 0.90 kW 7.6 kW 6079397
Sub TWU 3.02-09-HS-ECP-B 1~230 V, 50/60 Hz 76 mm 161.4 m 4.9 m³/h 1.50 kW 8.0 kW 6079398
Sub TWU 3.03-03-HS-ECP-B 1~230 V, 50/60 Hz 76 mm 58.2 m 6.4 m³/h 0.60 kW 6.9 kW 6079399
Sub TWU 3.03-05-HS-ECP-B 1~230 V, 50/60 Hz 76 mm 95.2 m 6.4 m³/h 0.90 kW 7.5 kW 6079400
Sub TWU 3.03-08-HS-ECP-B 1~230 V, 50/60 Hz 76 mm 151.5 m 6.6 m³/h 1.50 kW 7.9 kW 6079401
Sub TWU 3.05-04-HS-ECP-B 1~230 V, 50/60 Hz 76 mm 58.7 m 8.9 m³/h 0.90 kW 7.5 kW 6079402
Sub TWU 3.05-07-HS-ECP-B 1~230 V, 50/60 Hz 76 mm 102.2 m 8.8 m³/h 1.50 kW 7.9 kW 6079403

Those. information

Deciphering the name

for example, Wilo-Sub TWU 3-0305-HS-E-CP
TWU Submersible pump
3 Diameter of hydraulic equipment in inches ["]
03 Nominal volumetric flow rate [m3/h]
05 Number of hydraulic sections
HS High Speed
E Frequency converter versionE = External frequency converterI = Internal frequency converter
CP Control functionCP = Constant pressure maintenance without = Fixed speed up to 8400 rpm

Technical Specifications

Submersible pump:

  • Electrical connection:HS-E...: 1~230 V, 50/60 Hz (connection via frequency converter to single-phase mains)HS-I...: 1~230 V, 50/60 Hz (direct connection to single-phase mains)
  • Operating mode in immersed state: S1
  • Temperature of pumped liquid: 3-35 °C
  • Minimum motor flow speed: 0.08 m/s
  • Max. sand content: 50 g/m3
  • Max. number of starts: 30 /h
  • Max. immersion depth: 150 m
  • Degree of protection: IP 58
  • Pressure connection: Rp 1/Rp !¼

Frequency converter for "HS-E..." version:

  • Mains connection: 1~230 V, 50/60 Hz
  • Output: 3~230 V/max. 140 Hz/max. 2.2 kW
  • Temperature of the pumped liquid: 3-50 °C
  • Max. pressure: 8 bar
  • Protection class: IP X5
  • Pressure connection: G 1¼
  • Materials:
  • Casing of the hydraulic system: stainless steel 1.4301
  • Impellers: polycarbonate
  • Impellers: polycarbonate Hydraulic shaft: stainless steel 1.4104
  • Motor housing: stainless steel 1.4301
  • Motor shaft: stainless steel 1.4305

Description/construction

Submersible drainage pump for vertical or horizontal installation.

Hydraulics

Multistage submersible multi-stage radial impeller pump in split casing design. With integrated non-return valve. All parts in contact with pumped media are made of corrosion resistant material.

Electric motor

Non-corrosive asynchronous electric motor for connection to the frequency converter included in the delivery (HS-E...) or for direct connection to the electric network (HS-I...). Rewindable oil-filled electric motor with self-lubricating bearings, designed for high speeds up to 8400 rpm.

Frequency Converter (FC)

  • External frequency converter or frequency converter integrated into the electric motor to operate the pump at speeds up to 8400 rpm, including the following functions:
  • Soft-start
    • Under-voltage, over-voltage and short-circuit protection;
    • Motor and frequency converter overload protection with thermal relay
  • Model "HS-E..." with external frequency converter has the following additional equipment features:
    • "CP" regulation function: Constant pressure
    • Prevention of frequent switching cycles (synchronization) by monitoring the tightness;
    • Dry run protection with automatic reset
    • Changing direction of rotation;
    • Adjustment of max. current and set pressure
    • Pressure display.
    • Settings, operating status indications and error messages are indicated by LEDs or on the display.
  • The frequency converter must always be installed outside the pumped liquids with flood protection!

Control function "CP": Constant pressure

Through operation with a frequency converter the speed of the unit is automatically adapted to the current water flow rate. In this way, the submersible pump always delivers a constant pressure.

Cooling

The motor is cooled by the fluid being pumped. The motor may only be operated in immersed state. The maximum temperature limits for the pumped liquid and its minimum flow speed must be observed.

For vertical installation a cooling jacket must be provided depending on the diameter of the well. Horizontal installation is always done with a cooling jacket.

The external frequency converter is also cooled by the fluids being pumped. For this purpose, the frequency converter must be installed directly in the pipeline outside the pumped fluids (with flood protection).

Download

Wilo-Sub TWU 3-...-HS (High Speed) 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
Documentation Download

Colors

DOP

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