AstralPool Sena Self-Priming Pump – Efficiency and Durability for Your Pool
The AstralPool Sena Pump belongs to a new generation of swimming pool pumps designed to deliver maximum performance with minimum noise. With a modern and functional design, this self-priming pump is the ideal solution for those seeking reliability and resistance in residential pool filtration.
Built with high-quality materials, the Sena series stands out for its self-priming capacity of over 2 metres without the need for a foot valve, facilitating the installation and startup of the filtration system.
Advantages of the AstralPool Sena Pool Pump
Choosing the right pump is crucial to keeping your pool water crystal clear. The AstralPool Sena offers technical features that place it at the top of its category in Europe:
- Corrosion Resistance: All parts in direct contact with water are manufactured from AISI-316 stainless steel, ensuring an extended lifespan even in demanding environments.
- Salt Compatibility: Thanks to its high-quality components, it is fully resistant to common chemical treatments and salt electrolysis systems.
- Low Noise Level: Its hydraulic design has been optimised to reduce vibrations and noise during continuous operation.
- Certified Safety: Features the GS mark, IP-55 motor protection, and Class F insulation.
Technical Specifications and Performance
Refer to the table below to identify the most suitable model for your pool volume, checking the corresponding power and flow rate.
| Code | Model | Voltage | Flow at HN | Nominal Head | Maximum Head | Maximum Flow | Nominal Motor Power | Maximum Absorbed Power |
|---|---|---|---|---|---|---|---|---|
| UN | QN | HN | HMax | QMax | P2N | P1Max | ||
| V | m3/h | m | m | m3/h | kW | kW | ||
| 25461 | Sena 33M | 230 | 6.7 | 8 | 9.8 | 12.2 | 0.25 | 0.40 |
| 25462 | Sena 50M | 230 | 9.5 | 8 | 11.9 | 13.9 | 0.37 | 0.52 |
| 25463 | Sena 75M | 230 | 12.2 | 8 | 13.8 | 15.6 | 0.55 | 0.66 |
| 25464 | Sena 75T | 230/400 | 12.1 | 8 | 13.8 | 15.5 | 0.55 | 0.67 |
| 25465 | Sena 100M | 230 | 14.9 | 8 | 13.8 | 19.3 | 0.55 | 0.87 |
| 25466 | Sena 100T | 230/400 | 14.4 | 8 | 13.8 | 18.8 | 0.55 | 0.82 |
| 25467 | Sena 125M | 230 | 16.8 | 8 | 15.1 | 20.8 | 0.75 | 1.02 |
| 25468 | Sena 125T | 230/400 | 17.1 | 8 | 15.3 | 20.5 | 0.75 | 0.98 |
Dimensions (mm)

| Model | A | B | C | D | E | F | G | H | I |
|---|---|---|---|---|---|---|---|---|---|
| Sena 33M | 472.5 | 191.5 | 290.5 | Ø50 | 225.5 | 210.5 | 293 | 199 | 142 |
| Sena 50M | 472.5 | 191.5 | 290.5 | Ø50 | 225.5 | 210.5 | 293 | 199 | 142 |
| Sena 75M | 489 | 208 | 290.5 | Ø50 | 225.5 | 210.5 | 293 | 199 | 142 |
| Sena 75T | 489 | 208 | 290.5 | Ø50 | 225.5 | 210.5 | 293 | 199 | 142 |
| Sena 100M | 489 | 208 | 290.5 | Ø50 | 225.5 | 210.5 | 293 | 199 | 142 |
| Sena 100T | 489 | 208 | 290.5 | Ø50 | 225.5 | 210.5 | 293 | 199 | 142 |
| Sena 125M | 489 | 208 | 290.5 | Ø50 | 225.5 | 210.5 | 293 | 199 | 142 |
| Sena 125T | 489 | 208 | 290.5 | Ø50 | 225.5 | 210.5 | 293 | 199 | 142 |
Construction and Assembly Features
- Connections: Pipe connection via solvent socket union with a 50 mm diameter.
- Speed: Operates at 3,000 rpm.
- Pre-filter: Built-in to trap solid particles and protect the pump’s hydraulic components.
Frequently Asked Questions (FAQ) – AstralPool Sena
1. Can I use the AstralPool Sena pump in saltwater pools?
Yes. The Sena pump is designed with resistant materials such as AISI-316, making it perfectly compatible with salt electrolysis disinfection systems.
2. What is the self-priming capacity of this pump?
The Sena series has a self-priming capacity of over 2 metres without the need for a foot valve, which simplifies priming and startup.
3. Is this pump single-phase or three-phase?
The Sena range offers both options. Models vary from 1/3 HP to 1.25 HP in the single-phase version and from 3/4 HP to 1.25 HP in the three-phase version.
4. What does IP-55 protection mean?
The IP-55 rating ensures the motor is protected against dust ingress and water jets, which is essential for equipment installed in plant rooms or humid outdoor environments.
5. What pipe connections are required?
The pump is supplied with 50 mm diameter solvent socket connections, facilitating integration into standard residential pool piping systems.






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