Search
Contact
E-mail
Catalogue creation
My favorites
Product comparison
RAIN3-25 EM | Wilo
Technical data
Hydraulic data
Maximum operating pressure PN 8 bar
Discharge port G 1
Replenishment system -
Max. volume flow Qmax 5.3 m³/h
Optimal volume flow Qopt 3.0 m³/h
Max. delivery head Hmax 49.1 m
Optimal delivery head Hopt 29.78 m
Min. fluid temperature Tmin 3 °C
Max. fluid temperature Tmax 30 °C
Min. ambient temperature Tmin 5 °C
Max. ambient temperature Tmax 40 °C
Motor data
Mains connection 1~230 V, 50 Hz
Shaft power P2(Q=max.) of selected impeller * number of pumps NO VALUE 500 W
Rated speed n 2900 1/min
Rated current IN 3.2 A
Protection class motor X4
Insulation class F
Materials
Pump housing PA6T/6I-GF40
Impeller PPE/PS-GF30
Shaft Stainless steel
Shaft seal BVPFF
Stage chamber material PPE/PS-GF30
Installation dimensions
Gross volume of the tank V 10 l
Gross volume of the diaphragm expansion tank V 0 l
Pipe connection on the suction side DNs G 1
Pipe connection on the discharge side DNd G 1

RAIN3-25 EM

Product data
Brand Wilo
Product description RAIN3-25 EM
Article number 2551472
EAN number 4048482967950
Colour white/black
Minimum order quantity 1
Date of sales availability 2020-02-20
Packaging
Packaging type Cardboard box
Packaging property Sales packaging
Pieces per pallet 4
Number per layer 1
Dimension, weight
Length with packaging 777 mm
Length L 642 mm
Height with packaging 908 mm
Height H 715 mm
Width with packaging 295 mm
Width W 260 mm
Gross weight, approx. m 28.9 kg
Net weight, approx. m 25.9 kg
Tender text

Wilo-RAIN3 is a rainwater utilisation system for conserving drinking water, for the water supply of, for example, WC cisterns or for garden irrigation. Its compact and standardised construction in accordance with EN 1717 and DIN 1989 and its numerous hydraulic connection options speed up and simplify every new installation or replacement. In addition, the intuitive interface of the touch LCD combined with numerous smart functions such as self-protection routines ensure convenient operation and high reliability.

Special features/product benefits

  • Easy installation thanks to its ready-to-plug system and compact design with various hydraulic connection options
  • A unique combination of intuitive LCD touchscreen operation and a wide range of control functions facilitate convenient operation and easy-to-use settings
  • High level of reliability thanks to integrated self-protection routines
  • Non-return valve and replenishment reservoir in accordance with DIN 1989 and EN 1717 ensure hygienic safety
  • Quiet operation in installations close to living space
  • Controls can be conveniently updated by Wilo Service via Wi-Fi

Equipment/functions

Ready for connection module with compact construction, consisting of:

  • HiMulti 3 P self-priming centrifugal pump, mounted on a base frame with oscillation absorbers
  • 11 l replenishment reservoir for fresh water replenishment with float valve
  • 3-way valve
  • Front and rear cover
  • Connection on the discharge side, G 1″ hose
  • Connection on the suction side, G 1″ hose
  • Connection for municipal water supply network: G ¾″, max 6 bar
  • 3 m mains connection cable and plug
  • 4 … 20 mA filling level sensor with 20 m cable for rainwater level monitoring in the storage tank
  • 4 … 20 mA pressure sensor
  • Overflow sensor installed in the replenishment reservoir
  • Acoustic alarm
  • Potential-free contact available for optional external alarm or fault message
  • Electronic control device with colour LCD touchscreen

Operation/display

  • Display with colour LCD touchscreen
  • Permanent display for the fill level in the rainwater storage tank, operating pressure and mode (automatic – manual), pumping mode (rainwater – tap water)
  • Logging of the last 10 faults

Control

Fully automatic control of:

  • HiMulti 3 P self-priming centrifugal pump
  • Configurable triggering pressure
  • Operating modes of the systems (manual or automatic)
  • 3-way valve switchover between rainwater operation and municipal water supply network
  • Level monitoring of the rainwater storage tank
  • Replenishment reservoir overflow detection
  • Dry-running protection of pump
  • Self-priming support
  • Automatic periodical water exchange in the replenishment reservoir (selectable intervals)
  • Run signals and fault messages
  • Optional external alarm or fault message
  • Optional submersible pump (rainwater storage tank pump)

Monitoring

  • 4 … 20 m filling level sensor monitors rainwater fill level in storage tank
  • Current supply pressure
  • Dry-running protection of pump
  • Continuous monitoring of sensor cables
  • Protection of pump mains voltage supply via circuit breaker
  • Replenishment reservoir overflow

Interfaces

  • Relay for optional submersible pump
  • Potential-free contact available for external alarm or fault message to BMS
  • Potential-free contact for sensor to detect overflow or backflow

Additional electrical connections at the control device

Can be used to control optional devices or for communication:

  • Connection of a rainwater storage tank pump:
    • In case of possible suction problems if the maximum negative suction head of the main pump is exceeded (e.g. rainwater storage tank too deep or pipes too long), connect a rainwater storage tank pump (submersible pump, 230 V, max. 3 A) to the control device. Pumps for these applications are available from Wilo. Consult specialist technician.
  • Potential-free contact can be used for fault messages
  • Sensor for overflow or backflow detection
Materials
Pump housing PA6T/6I-GF40
Shaft Stainless steel
Impeller PPE/PS-GF30
Operating Data
Min. fluid temperature Tmin 3 °C
Max. fluid temperature Tmax 30 °C
Maximum operating pressure p 8.0 bar
Max. ambient temperature Tmax 40 °C
Motor data
Mains connection 1~230 V, 50 Hz
Rated speed n 2900 1/min
Rated current IN 3.2 A
Protection class motor X4
Insulation class F
Installation dimensions
Overflow connection Ø19-PN0
Pipe connection on the suction side DNs G 1
Pipe connection on the discharge side DNd G 1
Ordering information
Net weight, approx. m 25.9 kg
Brand Wilo
Product description RAIN3-25 EM
Article number 2551472
Documents

Installation and operating instructions

Wilo-RAIN3

Article Number 4232897
Edition 2024-02
Number of pages 132
Language de, en, fr, nl
PDF (17 MB)

Wilo-RAIN3 - Quick Start Guide

Article Number 4263496
Edition 2024-02
Number of pages 16
Language de, en, fr, nl
PDF (10 MB)

Group Statement

Group Statement REACH

Edition 2021-05
Number of pages 5
Language language neutral
PDF (327 KB)
BIM/CAD
Accessory

Floating intake (14)

Rainwater storage tank pump (10)

Near-ground intake (10)

Fittings (1)

Hoses / hose joints (5)

Installation/setup (1)

Pipe installation (1)

Pressurised expansion tanks (3)

Suction filter (4)

Services

With Wilo as your partner, you can not only be sure of choosing high-quality product solutions, but also of benefiting from a comprehensive, worry-free package of well thought-out services. We collaborate to develop a service concept tailored to your individual needs; with our expertise and personal consultancy, we make sure that the operation of your systems is as energy-efficient, reliable and economical as possible. All the while our competent Wilo service technicians are ready to assist you with fast, reliable and on-time support.

Read more

Recommended services

Wilo-Live Assistant
Wilo-Live Assistant Service
    
2216415

The Wilo-Live Assistant is a technical advisor at your side during pump service. By using the Wilo-Live Assistant, our expert advisers can support you in the boiler or equipment room via video transmission – live and in real time. You use your smartphone to show the installation set-up, while the Wilo expert follows everything on their screen. They can see the components as well as other details and can thus determine where the fault or breakdown originates. We prevent downtime and ensure operational reliability of your pumps and systems!

The Wilo-Live Assistant includes:

  • Interactive live support via video chat
  • Direct contact with an expert
  • Just-in-time solution to ensure maximum operational reliability of your pumps and systems
Maintenance
Maintenance BASIC RainSystem AF/RAIN
    
2160460

In order to ensure and guarantee operational reliability of the pumps/systems, it is recommended to have regular and DIN-compliant inspections and maintenance carried out by the works' own WILO SE Customer Service Department. The tasks are carried out in accordance with DIN 31051 / DIN EN 13306. The tasks comprise the following points:

  • Visual inspection of the pumps/systems
  • Mechanical check
  • Electrical check
  • Testing pressure vessels that may be on hand
  • Review and, if necessary, adjustment of the system parameters
  • Creating a maintenance protocol

Scheduling and organisation is performed by WILO. Other individual maintenance offers are possible on request. The price of the maintenance is valid inside Germany.

-NET-

Maintenance COMFORT RainSystem AF/RAIN
    
2160475

In order to ensure and guarantee operational reliability of the pumps/systems, it is recommended to have regular and DIN-compliant inspections and maintenance carried out by the works' own WILO SE Customer Service Department. The tasks are carried out in accordance with DIN 31051 / DIN EN 13306. The tasks comprise the following points:

  • Visual inspection of the pumps/systems
  • Mechanical check
  • Electrical check
  • Testing and possible filling of pressure vessels that may be on hand
  • Review and, if necessary, adjustment of the system parameters
  • Creating a maintenance protocol
  • Consumable materials are included in the contract price
  • Elimination of payroll and travel expenses for deployments between maintenance intervals (during normal service hours)

Scheduling and organisation is performed by WILO. Other individual maintenance offers are possible on request. The price of the maintenance is valid inside Germany.

-NET-

Maintenance PREMIUM RainSystem AF/RAIN
    
2160490

In order to ensure and guarantee operational reliability of the pumps/systems, it is recommended to have regular and DIN-compliant inspections and maintenance carried out by the works' own WILO SE Customer Service Department. The tasks are carried out in accordance with DIN 31051 / DIN EN 13306. The tasks comprise the following points:

  • Visual inspection of the pumps/systems
  • Mechanical check
  • Electrical check
  • Testing and possible filling of pressure vessels that may be on hand
  • Checking the system parameters
  • Creating a maintenance protocol
  • Consumable materials are included in the contract price
  • Elimination of payroll and travel expenses for deployments between maintenance intervals (during and outside normal service hours)
  • Software updates
  • Includes wearing parts

Scheduling and organisation is performed by WILO. Other individual maintenance offers are possible on request. The price of the maintenance is valid inside Germany.

-NET-

More suitable services

Supervision
Supervision RainSystem AF/RAIN
    
2219326

Wilo supports during the concept phase to ensure quality work and cost efficiency. Our competent and qualified Wilo Service will support you with recommendations and technical advice throughout the entire project.

Supervision includes:

  • Regular on-site visits ensure the quality of information and advice
  • Technical consultancy, also available on site
  • Status report with recommendations after the visit
  • Comprehensive support from a Wilo expert
Installation
Installation RainSystem AF/RAIN
    
2219361

The Wilo service offers installation of our pumps or pumping systems. We offer an end-to-end process from gathering information on site to installing our product in the overall plant. An optimal installation set-up and the interaction of various individual factors lay the foundation for long-term operational safety.

Installation includes:

  • Professional inspection
  • Provision of components/materials from Wilo and third-party suppliers
  • Installation of pipelines and electronics
  • Test runs
Commissioning
Commissioning RainSystem AF/RAIN
    
2160445

For perfect functioning of the pump(s) / system(s), it is recommended to have the commissioning carried out by the works' own WILO SE Customer Service Department. Optimum setting and efficient operation of the system are ensured as a result. Commissioning is comprised of the following points:

  • Commissioning of system(s) according to checklist
  • Parameterisation and setting of switchgear
  • Testing and adaptation of initial compressing of pressure tanks (filling up to 80 litres incl.)
  • Functional check of fitted system(s)
  • Practice-oriented operation instruction
  • Wilo commissioning protocol

The price for commissioning only applies to system(s) which have been installed in accordance with the installation and operating instructions and state-of-the-art technology. No costs for any materials which may be required are included.

-NET-

System Optimisation
System Optimisation RainSystem AF/RAIN
    
2219256

The Wilo Service offers proactive system optimisation by optimising settings and doing minor adjustments to ensure operational reliability. System Optimisation includes among others:

  • Overhaul of pumps/systems to restore full performance
  • Addition of new technologies or functions in older systems to save on capital expenditures (retrofitting)
Energy Solutions
Energy Solutions RainSystem AF/RAIN
    
2219291

Wilo Service offers a proactive support to point out possible energy savings. Our service creates an overview of all installed assets to show how the energy consumption of pumps or systems can be reduced. We offer targeted consultancy and analysis, including the involvement of subsidies as well as comprehensive support around the changeover to high-efficiency technologies. Wilo-Energy solution includes:

  • Detailed assessment of the life cycle costs (LCC analysis)
  • Energy audit including information about energy saving potential
  • Proactive recommendation of replacement options
  • Improving the environmental performance of your system
  • Support in the changeover to Wilo high-efficiency pumps
Repair
Repair RainSystem AF/RAIN
    
2219615

Wilo Service draws on their competence and experience while consulting on site to decide whether the pump can actually be repaired on site or has to be sent in for a factory repair. Wilo also provides spare parts or a replacement pump to restore the operational reliability of the system.

Repair includes:

  • Verification and elimination of error causes by experienced Wilo experts
  • Non-binding estimate for repairs
  • Electric-hydraulic test run to ensure correct data regarding functionality, quality and performance of the pump or system
  • Coating of various pump or system components for an optimised efficiency factor
  • Use of genuine spare parts only
  • Documentation of the repair in the service report