Wilo Sub TWU 4 Stainless Steel Submersible Deep-Well Pump (4-inch)

Sub TWU 4.02-07-DM-C、Sub TWU 4.02-07-EM-C、Sub TWU 4.02-10-DM-C、Sub TWU 4.02-10-EM-C、Sub TWU 4.02-14-DM-C、Sub TWU 4.02-14-EM-C、Sub TWU 4.02-20-DM-C、Sub TWU 4.02-20-EM-C、Sub TWU 4.04-05-DM-C、Sub TWU 4.04-05-EM-C、Sub TWU 4.04-07-DM-C、Sub TWU 4.04-07-EM-C、Sub TWU 4.04-09-DM-C、Sub TWU 4.04-09-EM-C、Sub TWU 4.04-14-DM-C、Sub TWU 4.04-14-EM-C、Sub TWU 4.04-18-DM-C、Sub TWU 4.04-18-EM-C、Sub TWU 4.04-27-DM-C、Sub TWU 4.04-27-EM-C、Sub TWU 4.04-35-DM-C、Sub TWU 4.04-44-DM-C

The Wilo-Sub TWU is a high-performance 4-inch stainless steel submersible deep-well pump,specifically engineered to meet demanding deep-well water extraction requirements.Constructed entirely from stainless steel,the pump offers exceptional corrosion resistance and superior structural durability,ensuring stable,long-term operation even in challenging water conditions.Combining high energy efficiency with high flow rates and high head capabilities

Product Consultation By telephone

Function

Parameters

Size

Video Introduction

Function

Features/Product Advantages

Corrosion-resistant wetted parts
Integrated non-return valve
Floating impellers for low wear
Easy-to-maintain motor

Construction

Multistage 4" submersible pump suitable for vertical or horizontal installation; jacketed construction

Applications

Pumping rainwater and industrial water from boreholes and wells for sprinkling, irrigation, and water supply.

Equipment/Functions

Integrated non-return valve
NEMA pressure connection
Single-phase AC motor; capacitor box includes built-in thermal motor protection

Model Code

Example:	Wilo-Sub TWU 4.02-07-EM-C
TWU	series
4	Hydraulic component diameter, unit: inches ["]
02	Rated volumetric flow rate [m³/h]
07	Number of hydraulic stages
EM	Power connection: EM = Single-phase AC DM = Three-phase AC
C	Product Series

Technical Data

Power connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
Operation mode (submerged): S1
Fluid temperature: 3 – 30 °C
Minimum flow velocity at motor: 0.08 m/s
Max. sand content: 50 g/m³
Max. starts per hour: 20/h
Max. immersion depth: 200 m
Protection class: IP68
Pressure connection: Rp 1¼ – Rp 2

Materials

Hydraulics housing: 1.4301
Impeller: Modified PPO
Hydraulics shaft: 1.4104
Motor housing: 1.4301
Motor shaft: 1.4305

Type

Submersible pump suitable for vertical or horizontal installation.

Hydraulics

Multistage submersible pump with sectional construction, featuring radial or semi-axial impellers and an integrated non-return valve. Pressure connection with threaded flange and internal thread. All parts in contact with the medium are made of corrosion-resistant materials.

Motor

Single-phase or three-phase AC motor for direct-on-line starting. Sealed motor featuring resin-impregnated windings with enamel insulation, a water-glycol fill, and self-lubricating motor bearings.

Cooling

The motor is cooled by the pumped fluid. The pump must operate fully submerged.
Vertical installation is possible with or without a cooling shroud.
Horizontal installation requires the use of a cooling shroud.

Scope of supply

Hydraulic unit + motor, ready for installation
1.5/1.75/2.5/4.0 m power cable
Single-phase models include a control box with capacitor, thermal motor protection, and On/Off switch
Installation and operating instructions

Accessories

Cooling shroud
Diaphragm pressure vessel
Gate valve
Float switch
Pressure switch
Electrodes
Switchgear
Alarm device
Cast-resin kit
Power cable

Parameters

model	Voltage (V)	Flow rate (m³/h)	Head (m)	Power (kW)	Motor diameter (mm)	caliber
Sub TWU 4.02-07-DM-C	380V	2.2	31.97	0.37	97	Rp 1 1/4
Sub TWU 4.02-07-EM-C	220V	2.2	31.97	0.37	98	Rp 1 1/4
Sub TWU 4.02-10-DM-C	380V	2.2	48.6	0.55	97	Rp 1 1/4
Sub TWU 4.02-10-EM-C	220V	2.2	48.6	0.55	98	Rp 1 1/4
Sub TWU 4.02-14-DM-C	380V	2.2	65.66	0.75	97	Rp 1 1/4
Sub TWU 4.02-14-EM-C	220V	2.2	65.66	0.75	98	Rp 1 1/4
Sub TWU 4.02-20-DM-C	380V	2.2	98.32	1.1	97	Rp 1 1/4
Sub TWU 4.02-20-EM-C	220V	2.2	98.32	1.1	98	Rp 1 1/4
Sub TWU 4.04-05-DM-C	380V	3.7	20.7	0.37	97	Rp 1 1/4
Sub TWU 4.04-05-EM-C	220V	3.7	20.7	0.37	98	Rp 1 1/4
Sub TWU 4.04-07-DM-C	380V	3.7	32.78	0.55	97	Rp 1 1/4
Sub TWU 4.04-07-EM-C	220V	3.7	32.78	0.55	98	Rp 1 1/4
Sub TWU 4.04-09-DM-C	380V	3.7	41.87	0.75	97	Rp 1 1/4
Sub TWU 4.04-09-EM-C	220V	3.7	41.87	0.75	98	Rp 1 1/4
Sub TWU 4.04-14-DM-C	380V	3.7	67.17	1.1	97	Rp 1 1/4
Sub TWU 4.04-14-EM-C	220V	3.7	67.17	1.1	98	Rp 1 1/4
Sub TWU 4.04-18-DM-C	380V	3.7	86.78	1.5	97	Rp 1 1/4
Sub TWU 4.04-18-EM-C	220V	3.7	86.78	1.5	98	Rp 1 1/4
Sub TWU 4.04-27-DM-C	380V	3.7	125.3	2.2	97	Rp 1 1/4
Sub TWU 4.04-27-EM-C	220V	3.7	125.3	2.2	98	Rp 1 1/4
Sub TWU 4.04-35-DM-C	380V	3.7	168.7	3	97	Rp 1 1/4
Sub TWU 4.04-44-DM-C	380V	3.7	200.1	4	97	Rp 1 1/4
Sub TWU 4.04-48-DM-C	380V	3.7	226.2	4	97	Rp 1 1/4
Sub TWU 4.08-05-DM-C	380V	7.2	22.05	0.75	97	Rp 2
Sub TWU 4.08-05-EM-C	220V	7.2	22.05	0.75	98	Rp 2
Sub TWU 4.08-07-DM-C	380V	7.2	32.97	1.1	97	Rp 2
Sub TWU 4.08-07-EM-C	220V	7.2	32.97	1.1	98	Rp 2
Sub TWU 4.08-10-DM-C	380V	7.2	46.94	1.5	97	Rp 2
Sub TWU 4.08-10-EM-C	220V	7.2	46.94	1.5	98	Rp 2
Sub TWU 4.08-15-DM-C	380V	7.2	69.63	2.2	97	Rp 2
Sub TWU 4.08-15-EM-C	220V	7.2	69.63	2.2	98	Rp 2
Sub TWU 4.08-21-DM-C	380V	7.2	98.51	3	97	Rp 2
Sub TWU 4.08-29-DM-C	380V	7.2	136.9	5.5	97	Rp 2
Sub TWU 4.08-34-DM-C	380V	7.2	162.8	5.5	97	Rp 2
Sub TWU 4.08-39-DM-C	380V	7.2	183.7	5.5	97	Rp 2
Sub TWU 4.08-45-DM-C	380V	7.2	215.3	7.5	97	Rp 2
Sub TWU 4.08-51-DM-C	380V	7.2	240.3	7.5	97	Rp 2
Sub TWU 4.16-08-DM-C	380V	15.4	19.36	1.5	97	Rp 2
Sub TWU 4.16-08-EM-C	220V	15.4	19.36	1.5	98	Rp 2
Sub TWU 4.16-12-DM-C	380V	15.4	30.12	2.2	97	Rp 2
Sub TWU 4.16-12-EM-C	220V	15.4	30.12	2.2	98	Rp 2
Sub TWU 4.16-16-DM-C	380V	15.4	41.91	3	97	Rp 2
Sub TWU 4.16-21-DM-C	380V	15.4	56.69	4	97	Rp 2
Sub TWU 4.16-30-DM-C	380V	15.4	80.8	5.5	97	Rp 2