Wilo Sub TWI 5/TWI 5-SE Multistage Submersible Rainwater Harvesting Pump

Sub TWI 5-304EM、Sub TWI 5-304EM-FS、Sub TWI 5-305EM、Sub TWI 5-305EM-FS、Sub TWI 5-306DM、Sub TWI 5-306EM、Sub TWI 5-306EM-FS、Sub TWI 5-307EM、Sub TWI 5-307EM-FS、Sub TWI 5-308DM、Sub TWI 5-308EM、Sub TWI 5-308EM-FS、Sub TWI 5-504EM、Sub TWI 5-504EM-FS、Sub TWI 5-505EM、Sub TWI 5-505EM-FS、Sub TWI 5-506EM、Sub TWI 5-506EM-FS、Sub TWI 5-903DM、Sub TWI 5-903EM、Sub TWI 5-904DM、Sub TWI 5-904EM、Sub TWI 5-SE-304EM、Sub TWI 5-SE-304EM-FS、Sub TWI 5-SE-305EM、Sub TWI 5-SE-305EM-FS、Sub TWI 5-SE-306DM、Sub TWI 5-SE-306EM

The Wilo Sub TWI 5/TWI 5-SE multistage submersible rainwater harvesting pump is specifically designed for high-efficiency rainwater harvesting and utilization systems in buildings.Combining powerful pumping capabilities with excellent energy efficiency,this pump is an ideal choice for rainwater management projects in villas,commercial buildings,and similar facilities.Its robust design and stable,low-noise operation ensure long-term

Product Consultation By telephone

Function

Parameters

Size

Video Introduction

Function

Features/Product Advantages

Optimized hydraulics ensure high efficiency
Equipped with an "SE" type self-cooling motor, allowing for dry-pit installation outside the water
Single-phase AC models come pre-assembled with a control box and motor protection device for easy installation
Easy to operate, maintain, and repair
Corrosion-resistant and low-wear

Construction

Multistage submersible pump for rainwater harvesting

Applications

Pumping of well water and rainwater (as well as potable water with a sand content of less than 50 g/m³—ACS certified) from cisterns for irrigation, sprinkling, and water supply.

Equipment/Functions

TWI5 ... EM:

Suitable for wet installation in cisterns and tanks
Equipped with a suction strainer
Single-phase AC motor with thermal motor protection and 20 m connection cable
Switchbox (IP55) with integrated On/Off switch, 2 m connection cable, and CEE7/7 plug
Switchbox allows for the connection of a float switch

TWI5 ... EM-FS:

Suitable for wet installation in cisterns and tanks
Equipped with a suction strainer and an attached float switch
Single-phase AC motor with thermal motor protection and 20 m connection cable
Switchbox (IP55) with integrated On/Off switch, 2 m connection cable, and CEE7/7 plug
Switchbox allows for the connection of a float switch

TWI5 SE ... EM:

Suitable for wet installation in cisterns and tanks, as well as dry installation in a pump chamber outside the cistern/tank
Equipped with a side inlet for connecting a floating suction filter
Equipped with a base frame for floor mounting (including 4 vibration dampers)
Single-phase AC motor with thermal motor protection and 20 m connection cable
Switchbox (IP55) with integrated On/Off switch, 2 m connection cable, and CEE7/7 plug
Switchbox allows for the connection of a float switch

TWI5 SE ... EM-FS:

Suitable for wet installation in cisterns and tanks, as well as dry installation in a pump chamber outside the cistern/tank
Equipped with a side inlet for connecting a floating suction filter
Equipped with a base frame for floor mounting (including 4 vibration dampers)
Includes a float switch
Single-phase AC motor with thermal motor protection and 20 m connection cable m connection cable
Switch box (IP55) with built-in On/Off switch, 2 m connection cable, and CEE7/7 plug
Switch box for connecting a float switch

TWI5 ... DM:

Suitable for wet installation in collection tanks and cisterns
Equipped with a strainer
Three-phase AC motor
Connection cable with bare wire ends

TWI5 SE ... DM:

Suitable for wet installation in collection tanks and cisterns, as well as dry installation in a sump outside the tank/cistern
Equipped with a side inlet connection for a floating suction filter
Equipped with a base frame for floor mounting (including 4 vibration dampers)
Three-phase AC motor
Connection cable with bare wire ends

Model code

Example:	TWI5-SE 304 EM-FS
TWI5	Submersible rainwater recovery pump
SE	Specifications for models with side suction nozzles
3	Rated volumetric flow rate Q, unit: m³/h
04	series
EM	Power connection: EM = Single-phase AC DM = Three-phase AC
FS	Specifications with float switch

Technical data

Power connection: 1~230 V, 50 Hz and 3~400 V, 50 Hz
Fluid temperature: 5 °C to 35 °C
Max. operating pressure: 10 bar
Max. sand content: 50 g/m³
Max. immersion depth: 20 m
Protection class: IP68
Discharge connection: Rp 1¼
Suction connection (SE version): Rp 1¼

Materials

Housing: 1.4301
Impeller: 1.4301
Shaft: 1.4301
Seal:
Fluid side: SiC/SiC
Motor side: Carbon/Ceramic
Static: NBR

Type

Rainwater harvesting pump with monobloc design, featuring radial impellers as multistage hydraulic components. Single-phase AC motor with a cooling jacket for surface cooling. Motor cooling is achieved via the pumped medium. The motor is equipped with an automatic thermal overload protection device.

The motor itself remains dry. Sealing between the motor and the medium is achieved via two mechanical seals. An oil chamber is located between the two mechanical seals; it is filled with white oil to collect any leakage from the medium-side seal.

Connection cable with plug.

As-delivered condition

TWI5 ... EM ...

Pump with 20 m connection cable, integrated 2 m power supply cable, and control box with CEE 7/7 plug
Safety rope
Installation and operating instructions

TWI5 ... DM ...

Pump with 20 m connection cable
Safety rope
Installation and operating instructions

Accessories

Gate valve
Check valve
Float switch
Pressure switch
Electrodes
Control switch
Alarm device
Suction strainer with float:
Coarse filter
Fine filter

Parameters

model	Voltage (V)	Flow rate (m³/h)	Head (m)	Power (kW)	Rotational speed (rpm)	Motor diameter (mm)	caliber
Sub TWI 5-304EM	220V	3.3	28.5	0.55	2810	127	Rp 1 1/4
Sub TWI 5-304EM-FS	220V	3.3	28.5	0.55	2810	127	Rp 1 1/4
Sub TWI 5-305EM	220V	3.2	34	0.75	2810	127	Rp 1 1/4
Sub TWI 5-305EM-FS	220V	3.2	34	0.75	2810	127	Rp 1 1/4
Sub TWI 5-306DM	380V	3.1	41	0.75	2810	127	Rp 1 1/4
Sub TWI 5-306EM	220V	3.1	41	0.75	2810	127	Rp 1 1/4
Sub TWI 5-306EM-FS	220V	3.1	41	0.75	2810	127	Rp 1 1/4
Sub TWI 5-307EM	220V	3.1	50	1.1	2810	127	Rp 1 1/4
Sub TWI 5-307EM-FS	220V	3.1	50	1.1	2810	127	Rp 1 1/4
Sub TWI 5-308DM	380V	3.3	55	1.1	2810	127	Rp 1 1/4
Sub TWI 5-308EM	220V	3.3	55	1.1	2810	127	Rp 1 1/4
Sub TWI 5-308EM-FS	220V	3.3	55	1.1	2810	127	Rp 1 1/4
Sub TWI 5-504EM	220V	5	29.5	0.75	2810	127	Rp 1 1/4
Sub TWI 5-504EM-FS	220V	5	29.5	0.75	2810	127	Rp 1 1/4
Sub TWI 5-505EM	220V	5.3	37.5	0.9	2810	127	Rp 1 1/4
Sub TWI 5-505EM-FS	220V	5.3	37.5	0.9	2810	127	Rp 1 1/4
Sub TWI 5-506EM	220V	5.1	46	1.1	2810	127	Rp 1 1/4
Sub TWI 5-506EM-FS	220V	5.1	46	1.1	2810	127	Rp 1 1/4
Sub TWI 5-903DM	380V	9	26	1.1	2810	127	Rp 1 1/4
Sub TWI 5-903EM	220V	9	26	1.1	2810	127	Rp 1 1/4
Sub TWI 5-904DM	380V	9.5	33	1.5	2810	127	Rp 1 1/4
Sub TWI 5-904EM	220V	9.5	33	1.5	2810	127	Rp 1 1/4
Sub TWI 5-SE-304EM	220V	3.2	29	0.55	2810	127	Rp 1 1/4
Sub TWI 5-SE-304EM-FS	220V	3.2	29	0.55	2810	127	Rp 1 1/4
Sub TWI 5-SE-305EM	220V	3.2	33	0.75	2810	127	Rp 1 1/4
Sub TWI 5-SE-305EM-FS	220V	3.2	33	0.75	2810	127	Rp 1 1/4
Sub TWI 5-SE-306DM	380V	3.1	41	0.75	2810	127	Rp 1 1/4
Sub TWI 5-SE-306EM	220V	3.1	41	0.75	2810	127	Rp 1 1/4
Sub TWI 5-SE-306EM-FS	220V	3.1	41	0.75	2810	127	Rp 1 1/4
Sub TWI 5-SE-307EM	220V	3.1	50	1.1	2810	127	Rp 1 1/4
Sub TWI 5-SE-307EM-FS	220V	3.1	50	1.1	2810	127	Rp 1 1/4
Sub TWI 5-SE-308DM	380V	3.3	55	1.1	2810	127	Rp 1 1/4
Sub TWI 5-SE-308EM	220V	3.3	55	1.1	2810	127	Rp 1 1/4
Sub TWI 5-SE-308EM-FS	220V	3.3	55	1.1	2810	127	Rp 1 1/4
Sub TWI 5-SE-504EM	220V	5	29.5	0.75	2810	127	Rp 1 1/4
Sub TWI 5-SE-504EM-FS	220V	5	29.5	0.75	2810	127	Rp 1 1/4
Sub TWI 5-SE-505EM	220V	5.3	37	0.9	2810	127	Rp 1 1/4
Sub TWI 5-SE-505EM-FS	220V	5.3	37	0.9	2810	127	Rp 1 1/4
Sub TWI 5-SE-506EM	220V	5.1	46	1.1	2810	127	Rp 1 1/4
Sub TWI 5-SE-506EM-FS	220V	5.1	46	1.1	2810	127	Rp 1 1/4
Sub TWI 5-SE-903DM	380V	9	26	1.1	2810	127	Rp 1 1/4
Sub TWI 5-SE-903EM	220V	9	26	1.1	2810	127	Rp 1 1/4
Sub TWI 5-SE-904DM	380V	9.5	33.5	1.5	2810	127	Rp 1 1/4
Sub TWI 5-SE-904EM	220V	9.5	33.5	1.5	2810	127	Rp 1 1/4