Helix FIRST V 212-5/25/E/S/
Highly efficient high-pressure multistage centrifugal pump in vertical design with in-line connections.
The non self-priming high-pressure multistage centrifugal pump has a particularly compact overall design. The pump shaft and the motor shaft of the IEC standard motor are connected by means of a clamp coupling. A separate lantern roller bearing ensures optimum admission of axial thrusts.
Intermediate bearings in the hydraulics and corrosion-resistant shaft due to stainless steel sleeve ensure a long service life.
The pump housing and lantern are cataphoretic-coated.
Special, permanently attached lifting eyes enable easy pump installation.
The pump is suitable for water distribution and pressure boosting, industrial recirculation systems, process water and closed cooling circuits. It can also be used in fire extinguishing systems, washing systems as well as for irrigation.
Special features/product advantages
- Efficiency-optimised, laser-welded 2D/3D hydraulics
- Corrosion-resistant impellers, guide vanes and stage housings
- Flow and degassing-optimised hydraulic parts
- Reinforced pump housing, flow and NPSH optimised
- Space-saving and easy maintenance due to the compact design
- Particularly sturdy coupling guard
Scope of delivery
- Wilo-Helix FIRST V high-pressure multistage centrifugal pump
- Installation and operating instructions
- PN16 version with oval flanges: Cast iron counter flanges with the corresponding screws, nuts and gaskets
- Motor protection is to be provided on request or onsite.
- In its standard position, the terminal box is aligned with the suction flange, but this can be changed if necessary.
- The Wilo-Helix FIRST V is equipped with a standard mechanical seal
- For pump versions PN16, PN25 and Pmax = 30 bar, round counter flanges in cast iron or stainless steel, screws, nuts and gaskets are available as accessories.
- Bypass sets are available as accessories.
- The Wilo-Helix V in ATEX version upon request
|Min. fluid temperature Tmin||-20 °C|
|Max. fluid temperature Tmax||120 °C|
|Max. ambient temperature Tmax||50 °C|
|Maximum operating pressure PN||16 bar|
|Maximum inlet pressure p inl||10 bar|
|Minimum efficiency index (MEI)||0.7|
|Mains connection||3~400 V, 50 Hz|
|Voltage tolerance||±10 %|
|Rated power P2||1.1 kW|
|Motor efficiency class||IE3|
|Rated current IN||2.5 A|
|Rated speed n||2900 1/min|
|Power factor cos φ||0.80|
|Motor efficiency ηM 50%||78.7 %|
|Motor efficiency ηM 75%||82 %|
|Motor efficiency ηM 100%||82.7 %|
|Pump housing||Grey cast iron|
|Pipe connection on the suction side DNs||DN 25|
|Pipe connection on the discharge side DNd||DN 25|
|Product description||Helix FIRST V 212-5/25/E/S/|
|Net weight, approx. m||36.5 kg|
Installation and operating instructions
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.
Maintenance BASIC pressure-boosting system 1-2 pumps
Maintenance COMFORT Booster Set 1-2 pumps
Maintenance PREMIUM pressure-boosting system 1-2 pumps
Commissioning Booster Set 1-2 pumps
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:
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.
More suitable services
Service Package L Booster Set 1-2 pumps
The Wilo-Service package L includes:
Optional add-on services:
Service Package M Booster Set 1-2 pumps
The Wilo-Service package M includes:
Optional add-on services:
Service Package S Booster Set 1-2 pumps
The Wilo-Service package S includes:
Optional add-on services:
Wilo-Live Assistant Service
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:
Extended warranty pressure-boosting system 1-2 pumps
In combination of a new pump or system Wilo offers an extended warranty of up to five years in combination with commissioning and maintenance by the Wilo Service.
Extended warranty includes:
Supervision Booster Set 1-2 pumps
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.
Installation Booster Set 1-2 pumps
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.
System Optimisation Booster Set 1-2 pumps
The Wilo Service offers proactive system optimisation by optimising settings and doing minor adjustments to ensure operational reliability. System Optimisation includes among others:
Energy Solutions Booster Set 1-2 pumps
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:
Repair Booster Set 1-2 pumps
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.