Wilo-Sub TWI 6

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Overview

Long service life due to the use of corrosion-resistant stainless steel, optional V4A steel
Individual configuration of motors and materials for reliable operation in any application
Drinking water versions with ACS approval
High versatility with 4, 6, 8, and 10 in.
Flow range from 1 to 250 m³/h

Type
6-inch multi-section submersible pump in tie-bar design for vertical or horizontal installation

Application

Water supply, e.g. drinking water from wells and cisterns
Supply of service water
Use in public water supply systems, for irrigation and watering
Pressure boosting
Water level lowering
Pumping water for industrial use
Pumping water without long fibrous and abrasive impurities

Equipment/function

Multistage submersible motor pump with radial or semi-axial impellers
Built-in check valve
Coupling according to NEMA
Three phase electric motor
Sealed motors

Rewindable motors

Scope of delivery
Complete hydraulic section with motor
4/5/10 m power cable with drinking water approval (cross section: 4 × 2.5 mm2 or 4 × 4 mm2)
Installation and operating instructions

Model overview

Products

Show

Product designation	Mains connection	Motor diameter DM	Pressure head max. H_max	Max. Q_max	Nominal motor power P₂	Gross weight approx. m	Article number
Sub TWI 6.18-07-C	3~400 V, 50 Hz	98 mm	74.3 m	27.0 m³/h	3.70 kW	59.4 kg	6075205
Sub TWI 6.18-10-C	3~400 V, 50 Hz	98 mm	107.4 m	27.0 m³/h	5.50 kW	72.9 kg	6075206
Sub TWI 6.18-13-C	3~400 V, 50 Hz	137 mm	140.9 m	27.0 m³/h	7.50 kW	94.0 kg	6075207
Sub TWI 6.18-17-C	3~400 V, 50 Hz	137 mm	182.0 m	27.0 m³/h	9.30 kW	104.0 kg	6075208
Sub TWI 6.18-20-C	3~400 V, 50 Hz	137 mm	210.7 m	27.0 m³/h	11.00 kW	115.0 kg	6075209
Sub TWI 6.18-20-C-SD	3~400 V, 50 Hz	137 mm	210.7 m	27.0 m³/h	11.00 kW	115.0 kg	6075210
Sub TWI 6.18-22-C	3~400 V, 50 Hz	137 mm	234.8 m	27.0 m³/h	15.00 kW	126.0 kg	6075211
Sub TWI 6.18-22-C-SD	3~400 V, 50 Hz	137 mm	234.8 m	27.0 m³/h	15.00 kW	126.0 kg	6075212
Sub TWI 6.18-24-C	3~400 V, 50 Hz	137 mm	255.9 m	27.0 m³/h	15.00 kW	132.0 kg	6075213
Sub TWI 6.18-24-C-SD	3~400 V, 50 Hz	137 mm	255.9 m	27.0 m³/h	15.00 kW	132.0 kg	6075214
Sub TWI 6.18-27-C	3~400 V, 50 Hz	137 mm	287.5 m	27.0 m³/h	15.00 kW	137.0 kg	6075215
Sub TWI 6.18-27-C-SD	3~400 V, 50 Hz	137 mm	287.5 m	27.0 m³/h	15.00 kW	137.0 kg	6075216
Sub TWI 6.18-29-C	3~400 V, 50 Hz	137 mm	312.7 m	27.0 m³/h	18.50 kW	149.0 kg	6075217
Sub TWI 6.18-29-C-SD	3~400 V, 50 Hz	137 mm	312.7 m	27.0 m³/h	18.50 kW	149.0 kg	6075218
Sub TWI 6.18-31-C	3~400 V, 50 Hz	137 mm	329.4 m	27.0 m³/h	18.50 kW	155.0 kg	6075219
Sub TWI 6.18-31-C-SD	3~400 V, 50 Hz	137 mm	329.4 m	27.0 m³/h	18.50 kW	155.0 kg	6075220
Sub TWI 6.18-33-C	3~400 V, 50 Hz	137 mm	348.7 m	27.0 m³/h	18.50 kW	158.0 kg	6075221
Sub TWI 6.18-33-C-SD	3~400 V, 50 Hz	137 mm	348.7 m	27.0 m³/h	18.50 kW	158.0 kg	6075222
Sub TWI 6.18-36-C	3~400 V, 50 Hz	137 mm	385.5 m	27.0 m³/h	22.00 kW	172.0 kg	6075223
Sub TWI 6.18-36-C-SD	3~400 V, 50 Hz	137 mm	385.5 m	27.0 m³/h	22.00 kW	172.0 kg	6075224
Sub TWI 6.18-38-C	3~400 V, 50 Hz	137 mm	409.1 m	27.0 m³/h	22.00 kW	175.0 kg	6075225
Sub TWI 6.18-38-C-SD	3~400 V, 50 Hz	137 mm	409.1 m	27.0 m³/h	22.00 kW	175.0 kg	6075226
Sub TWI 6.18-40-C	3~400 V, 50 Hz	137 mm	428.4 m	27.0 m³/h	22.00 kW	182.0 kg	6075227
Sub TWI 6.18-40-C-SD	3~400 V, 50 Hz	137 mm	428.4 m	27.0 m³/h	22.00 kW	182.0 kg	6075228
Sub TWI 6.30-04-C	3~400 V, 50 Hz	98 mm	43.1 m	42.1 m³/h	3.70 kW	57.5 kg	6075231
Sub TWI 6.30-06-C	3~400 V, 50 Hz	98 mm	66.1 m	42.1 m³/h	5.50 kW	70.1 kg	6075232
Sub TWI 6.30-08-C	3~400 V, 50 Hz	137 mm	87.4 m	42.1 m³/h	7.50 kW	90.0 kg	6075233
Sub TWI 6.30-11-C	3~400 V, 50 Hz	137 mm	120.8 m	42.1 m³/h	11.00 kW	103.0 kg	6075234
Sub TWI 6.30-11-C-SD	3~400 V, 50 Hz	137 mm	120.8 m	42.1 m³/h	11.00 kW	103.0 kg	6075235
Sub TWI 6.30-13-C	3~400 V, 50 Hz	137 mm	141.7 m	42.1 m³/h	15.00 kW	115.0 kg	6075236
Sub TWI 6.30-13-C-SD	3~400 V, 50 Hz	137 mm	141.7 m	42.1 m³/h	15.00 kW	115.0 kg	6075237
Sub TWI 6.30-15-C	3~400 V, 50 Hz	137 mm	166.5 m	42.1 m³/h	15.00 kW	121.0 kg	6075238
Sub TWI 6.30-15-C-SD	3~400 V, 50 Hz	137 mm	166.5 m	42.1 m³/h	15.00 kW	121.0 kg	6075239
Sub TWI 6.30-17-C	3~400 V, 50 Hz	137 mm	185.9 m	42.1 m³/h	15.00 kW	128.0 kg	6075240
Sub TWI 6.30-17-C-SD	3~400 V, 50 Hz	137 mm	185.9 m	42.1 m³/h	15.00 kW	128.0 kg	6075241
Sub TWI 6.30-19-C	3~400 V, 50 Hz	137 mm	204.4 m	42.1 m³/h	18.50 kW	144.0 kg	6075242
Sub TWI 6.30-19-C-SD	3~400 V, 50 Hz	137 mm	204.4 m	42.1 m³/h	18.50 kW	144.0 kg	6075243
Sub TWI 6.30-21-C	3~400 V, 50 Hz	137 mm	223.0 m	42.1 m³/h	18.50 kW	147.0 kg	6075244
Sub TWI 6.30-21-C-SD	3~400 V, 50 Hz	137 mm	223.0 m	42.1 m³/h	18.50 kW	147.0 kg	6075245
Sub TWI 6.30-24-C	3~400 V, 50 Hz	137 mm	254.9 m	42.1 m³/h	22.00 kW	162.0 kg	6075246
Sub TWI 6.30-24-C-SD	3~400 V, 50 Hz	137 mm	254.9 m	42.1 m³/h	22.00 kW	162.0 kg	6075247
Sub TWI 6.30-26-C	3~400 V, 50 Hz	137 mm	282.7 m	42.1 m³/h	30.00 kW	188.0 kg	6075248
Sub TWI 6.30-26-C-SD	3~400 V, 50 Hz	137 mm	282.7 m	42.1 m³/h	30.00 kW	188.0 kg	6075249
Sub TWI 6.30-29-C	3~400 V, 50 Hz	137 mm	323.1 m	42.1 m³/h	30.00 kW	193.0 kg	6075250
Sub TWI 6.30-29-C-SD	3~400 V, 50 Hz	137 mm	323.1 m	42.1 m³/h	30.00 kW	193.0 kg	6075251
Sub TWI 6.30-32-C	3~400 V, 50 Hz	137 mm	350.4 m	42.1 m³/h	30.00 kW	202.0 kg	6075252
Sub TWI 6.30-32-C-SD	3~400 V, 50 Hz	137 mm	350.4 m	42.1 m³/h	30.00 kW	202.0 kg	6075253
Sub TWI 6.30-35-C	3~400 V, 50 Hz	137 mm	380.8 m	42.1 m³/h	30.00 kW	211.0 kg	6075254
Sub TWI 6.30-35-C-SD	3~400 V, 50 Hz	137 mm	380.8 m	42.1 m³/h	30.00 kW	211.0 kg	6075255
Sub TWI 6.50-03-C	3~400 V, 50 Hz	98 mm	40.8 m	60.1 m³/h	5.50 kW	64.4 kg	6075257
Sub TWI 6.50-05-C	3~400 V, 50 Hz	137 mm	65.6 m	60.1 m³/h	7.50 kW	84.0 kg	6075258
Sub TWI 6.50-07-C	3~400 V, 50 Hz	137 mm	94.3 m	60.1 m³/h	11.00 kW	98.0 kg	6075259
Sub TWI 6.50-07-C-SD	3~400 V, 50 Hz	137 mm	94.3 m	60.1 m³/h	11.00 kW	98.0 kg	6075260
Sub TWI 6.50-10-C	3~400 V, 50 Hz	137 mm	134.6 m	60.1 m³/h	15.00 kW	115.0 kg	6075261
Sub TWI 6.50-10-C-SD	3~400 V, 50 Hz	137 mm	134.6 m	60.1 m³/h	15.00 kW	115.0 kg	6075262
Sub TWI 6.50-12-C	3~400 V, 50 Hz	137 mm	160.1 m	60.1 m³/h	18.50 kW	129.0 kg	6075263
Sub TWI 6.50-12-C-SD	3~400 V, 50 Hz	137 mm	160.1 m	60.1 m³/h	18.50 kW	129.0 kg	6075264
Sub TWI 6.50-15-C	3~400 V, 50 Hz	137 mm	202.0 m	60.1 m³/h	22.00 kW	148.0 kg	6075265
Sub TWI 6.50-15-C-SD	3~400 V, 50 Hz	137 mm	202.0 m	60.1 m³/h	22.00 kW	148.0 kg	6075266
Sub TWI 6.50-17-C	3~400 V, 50 Hz	137 mm	229.4 m	60.1 m³/h	30.00 kW	174.0 kg	6075267
Sub TWI 6.50-17-C-SD	3~400 V, 50 Hz	137 mm	229.4 m	60.1 m³/h	30.00 kW	174.0 kg	6075268
Sub TWI 6.50-19-C	3~400 V, 50 Hz	137 mm	256.6 m	60.1 m³/h	30.00 kW	179.0 kg	6075269
Sub TWI 6.50-19-C-SD	3~400 V, 50 Hz	137 mm	256.6 m	60.1 m³/h	30.00 kW	179.0 kg	6075270
Sub TWI 6.50-22-C	3~400 V, 50 Hz	137 mm	296.7 m	60.1 m³/h	37.00 kW	229.0 kg	6075271
Sub TWI 6.50-22-C-SD	3~400 V, 50 Hz	137 mm	296.7 m	60.1 m³/h	37.00 kW	229.0 kg	6075272
Sub TWI 6.50-24-C	3~400 V, 50 Hz	137 mm	325.8 m	60.1 m³/h	37.00 kW	235.0 kg	6075273
Sub TWI 6.50-24-C-SD	3~400 V, 50 Hz	137 mm	325.8 m	60.1 m³/h	37.00 kW	235.0 kg	6075274
Sub TWI 6.60-02-C	3~400 V, 50 Hz	98 mm	26.4 m	78.5 m³/h	3.70 kW	51.9 kg	6075275
Sub TWI 6.60-03-C	3~400 V, 50 Hz	98 mm	41.1 m	78.5 m³/h	5.50 kW	64.4 kg	6075276
Sub TWI 6.60-04-C	3~400 V, 50 Hz	137 mm	54.3 m	78.5 m³/h	7.50 kW	80.0 kg	6075277
Sub TWI 6.60-06-C	3~400 V, 50 Hz	137 mm	81.1 m	78.5 m³/h	11.00 kW	95.0 kg	6075278
Sub TWI 6.60-06-C-SD	3~400 V, 50 Hz	137 mm	81.1 m	78.5 m³/h	11.00 kW	95.0 kg	6075279
Sub TWI 6.60-08-C	3~400 V, 50 Hz	137 mm	108.5 m	78.5 m³/h	15.00 kW	108.0 kg	6075280
Sub TWI 6.60-08-C-SD	3~400 V, 50 Hz	137 mm	108.5 m	78.5 m³/h	15.00 kW	108.0 kg	6075281
Sub TWI 6.60-10-C	3~400 V, 50 Hz	137 mm	131.2 m	78.5 m³/h	18.50 kW	122.0 kg	6075282
Sub TWI 6.60-10-C-SD	3~400 V, 50 Hz	137 mm	131.2 m	78.5 m³/h	18.50 kW	122.0 kg	6075283
Sub TWI 6.60-12-C	3~400 V, 50 Hz	137 mm	164.3 m	78.5 m³/h	22.00 kW	138.0 kg	6075284
Sub TWI 6.60-12-C-SD	3~400 V, 50 Hz	137 mm	164.3 m	78.5 m³/h	22.00 kW	138.0 kg	6075285
Sub TWI 6.60-14-C	3~400 V, 50 Hz	137 mm	192.8 m	78.5 m³/h	30.00 kW	160.0 kg	6075286
Sub TWI 6.60-14-C-SD	3~400 V, 50 Hz	137 mm	192.8 m	78.5 m³/h	30.00 kW	160.0 kg	6075287
Sub TWI 6.60-16-C	3~400 V, 50 Hz	137 mm	219.5 m	78.5 m³/h	30.00 kW	168.0 kg	6075288
Sub TWI 6.60-16-C-SD	3~400 V, 50 Hz	137 mm	219.5 m	78.5 m³/h	30.00 kW	168.0 kg	6075289
Sub TWI 6.60-18-C	3~400 V, 50 Hz	137 mm	248.8 m	78.5 m³/h	30.00 kW	176.0 kg	6075290
Sub TWI 6.60-18-C-SD	3~400 V, 50 Hz	137 mm	248.8 m	78.5 m³/h	30.00 kW	176.0 kg	6075291
Sub TWI 6.60-20-C	3~400 V, 50 Hz	137 mm	274.2 m	78.5 m³/h	37.00 kW	224.0 kg	6075292
Sub TWI 6.60-20-C-SD	3~400 V, 50 Hz	137 mm	274.2 m	78.5 m³/h	37.00 kW	224.0 kg	6075293
Sub TWI 6.18-01-CI	3~400 V, 50 Hz	95 mm	11.3 m	27.0 m³/h	0.55 kW	28.8 kg	6079282
Sub TWI 6.18-02-CI	3~400 V, 50 Hz	95 mm	22.0 m	27.0 m³/h	1.50 kW	33.6 kg	6079283
Sub TWI 6.18-04-CI	3~400 V, 50 Hz	95 mm	42.6 m	27.0 m³/h	2.20 kW	38.1 kg	6079284
Sub TWI 6.18-05-CI	3~400 V, 50 Hz	95 mm	53.7 m	27.0 m³/h	3.00 kW	49.5 kg	6079285
Sub TWI 6.18-06-CI	3~400 V, 50 Hz	95 mm	63.8 m	27.0 m³/h	3.00 kW	50.9 kg	6079286
Sub TWI 6.30-02-CI	3~400 V, 50 Hz	95 mm	22.2 m	42.1 m³/h	2.20 kW	37.2 kg	6079287
Sub TWI 6.30-03-CI	3~400 V, 50 Hz	95 mm	33.0 m	42.1 m³/h	3.00 kW	48.8 kg	6079288
Sub TWI 6.50-02-CI	3~400 V, 50 Hz	95 mm	24.8 m	60.1 m³/h	3.00 kW	47.9 kg	6079289

Those. information

Specifications

Mains connection: 3 ~ 400 V, 50 Hz
Immersion mode: S1
Pumped liquid temperature: 3 - 30 ° C
Minimum speed of flow around the electric motor:
- Hermetically sealed motors: 0.08 - 0.16 m / s
- Rewindable motors (SD-R): 0.1 - 0.5 m / s (depending on type)
Max. sand content: 50 g / m3
Max. number of starts: 20 / hour
Max. immersion depth:
- Hermetically sealed motors: 350 m
- Rewindable motors: 100 m
Protection class: IP68
Discharge connection: Rp 2½ - Rp 3

Materials (edit)

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 1.4305 or 1.4301

Description / construction
Submersible pump with ACS approval for vertical or horizontal installation.

Hydraulic part

Multistage submersible pump with 4 "or 6" NEMA connections and sectional radial or semi-axial impellers. Built-in non-return valve. All parts in contact with the pumped liquid are made of corrosion-resistant materials.

Electric motor

Three phase electric motor with direct and star-delta starting. Fully encapsulated electric motor, resin impregnated, winding with insulating coating, or rewindable, PVC insulated winding, self-lubricating bearings, filled with water-glycol mixture.

Cooling

motor is cooled by the fluid being pumped The motor must only be operated in immersed state. The maximum temperature limits for the pumped liquid and the minimum flow speed must be observed. Vertical installation can be carried out with or without a cooling jacket - at the customer's choice. Horizontal installation with a cooling jacket.

Pressure Cover

The pressure jacket makes it possible to install the unit directly into the piping system. The standard design of the pump inside the pressure jacket is without a non-return valve. The maximum inlet pressure is 10 bar.

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
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Wilo-EMU D/DCH/K/KD/KM/NK/SCH / Wilo-Sub TWI/TWU / Wilo-Zetos K8	Download
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Documentation	Download

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