Sub TWI 4.01-28-DM-D

Name: Sub TWI 4.01-28-DM-D
Brand: Wilo
SKU: 6091308

Submersible pump

Article number: 6091308

Series Sub TWI 4

Data sheet

Hydraulic data
Minimum efficiency index (MEI)	≥ 0.4
Maximum operating pressure PN	40 bar
Drinking water approvals	ACS (France) RISE
Max. sand content	50 g/m³
Max. immersion depth	350 m
Max. volume flow Q_max	1.8 m³/h
Optimal volume flow Q_opt	0.9 m³/h
Max. delivery head H_max	157.9 m
Optimal delivery head H_opt	110.6 m
Min. fluid temperature T_min	3 °C
Max. fluid temperature T_max	30 °C
Number of stages	28

Motor data
Mains connection	3~400 V, 50 Hz
Rated power P₂	1.1 kW
Rated speed n	2850 1/min
Rated current I_N	2.8 A
Starting current I	16 A
Activation type	Direct On Line (DOL)
Power factor cos φ₁₀₀	0.78
Max. switching frequency t	20 rph
Motor diameter DM	95 mm

Cable
Connection cable length L	1.5 m
Cable cross-section	3x1,5 + 1G1,5

Materials
Pump housing	Stainless steel
Impeller	Stainless steel
Shaft	Stainless steel
Motor housing	Stainless steel

Installation dimensions
Pipe connection, discharge side DNd	Rp 1¼

Ordering information

Product data
Brand	Wilo
Product description	Sub TWI 4.01-28-DM-D
Article number	6091308
EAN number	4062679142128
Colour	Silver
Minimum order quantity	1
Date of sales availability	2021-07-19

Packaging
Packaging type	Cardboard box
Packaging property	Transport packaging
Pieces per pallet	1
Number per layer	1

Dimension, weight
Length with packaging	1150 mm
Length L	1052 mm
Height with packaging	200 mm
Height H	98 mm
Width with packaging	200 mm
Width W	98 mm
Gross weight, approx. m	17.5 kg
Net weight, approx. m	15.5 kg

Fully submersible, multistage pump for pumping industrial and drinking water (ACS rating) with radial or semi-axial impellers in sectional construction for vertical or horizontal installation, with built-in non-return valve. Corrosion-free single-phase or three-phase AC motor for direct starting with water-glycol filling. Hermetically cast with enamel-insulated windings, resin-impregnated and self-lubricating bearings. The motor is cooled by the pumped fluid. Therefore, the unit must always be operated immersed. The limit values for maximum fluid temperature and minimum flow velocity must be adhered to. Vertical installation is possible with or without cooling jacket. In cases of horizontal installation, a cooling jacket must always be provided .

Scope of delivery:

Submersible pump with connection cable and ACS rating
Single-phase version including switchbox with capacitor, thermal motor protection and On/Off switch
Installation and operating instructions

Operating data
Max. delivery head H_max	157.9 m

Unit
Minimum efficiency index (MEI)	≥ 0.4
Pipe connection, discharge side DNd	Rp 1¼
Maximum operating pressure p	40.0 bar
Max. sand content	50 g/m³
Protection class motor	IP68
Drinking water approvals	ACS (France) RISE
Max. immersion depth	350 m
Min. fluid temperature T_min	3 °C
Max. fluid temperature T_max	30 °C
Net weight, approx. m	15.5 kg
Max. diameter D_max	98 mm

Motor data
Motor design	Submersible motor
Mains connection	3~400 V, 50 Hz
Rated power P₂	1.1 kW
Rated speed n	2850 1/min
Rated current I_N	2.8 A
Activation type	Direct On Line (DOL)
Max. switching frequency t	20 rph
Motor diameter DM	95 mm
Min. flow rate at the motor m/s	0.08 m/s

Cable
Connection cable length L	1.5 m
Cable cross-section	3x1,5 + 1G1,5

Materials
Pump housing	Stainless steel
Motor housing	Stainless steel
Shaft	Stainless steel
Impeller	Stainless steel

Ordering information
Net weight, approx. m	15.5 kg
Brand	Wilo
Product description	Sub TWI 4.01-28-DM-D
Article number	6091308

Sub TWI 4.01-28-DM-D

Submersible pump

Data sheet

Pump curves

Dimensions and dimensions drawings

Wilo-Sub TWI 4

Ordering information

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