Wilo-Sub TWI-4 | Southern Pumps Services are Specialists in Drainlift

Wilo-Sub TWI-4

Type key Example:	Wilo-Sub TWI 4 - 0213 EM
TWI	Submersible-motor deep-well pump
4	Minimum Diameter Borehole maximum 4" = DN100 Pumps Maximum 98mm
02	Nominal Flow Folume [m3/h]
13	Number of pump stages
EM	AC 1~230v, 50Hz with capacitor
EMSC	AC 1~230v, 50Hz with additional built in starting capacitor
DM	Three phase current 3-400V, 50Hz

Applications

Water supply from boreholes with a minimum diameter of 4" and a maximum immersion depth of up to 350 metres. Municipal water supply, sprinkling and irrigation, pressure boosting, lowering of the ground water level, industrial applications.
Pumping of water without long-fibre and abrasive constituents within the limitations of the specified minimums and maximums.

Construction

Hydraulics

Coupling and Flange usable for motors with pumps, installation dimensions in compiance with NEMA Standards. Built-in non-return valve in the pump head. Oversized intermediate bearing in each stage, specially designed to optimise the shaft bearings. Sturdy cable protection. Optimised hydraulics components fpor achieveing high efficiency. High resistance against corrosion and abrasion, thanks to the qualities of the stainless steel. Easy servicing, thanks to simple dismantling and installation characteristics of the aggregate unit.

Motor

Corrosion-free single-phase AC or three-phase motor with enammeled windings in hermatically cast stator for direct starting. Sealed cast stator, resin-saturated, self-lubricating bearings. Motor cooling is effected by the temperature and flow velocity of the pumped liquid outside of the motor.

Scope of delivery

Submersible motor deep well pump with built in non-return valve , pump with 1.5m or 2.5m long detatchable connection cable 4x1.5mm2 cable cross-section.
AC version EM including switchbox with capacitor, thermal motor protection and On/Off switch. Includes packaging in addition to installation and operating instructions.

Options

Hydraulics in stainless seteel 316L

Motor instainless steel 316L

1-230 V 2-wire motor
No start-up devide required, lightning protection and overload protection built into the motor.

60Hz motor

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