ESPA Silen S Pump – Silent and Robust Filtration for Pools

The ESPA Silen S is the market benchmark for self-priming centrifugal pumps for medium and large residential pools. Renowned for its extreme durability, this pump is the ideal solution for those seeking energy efficiency and totally silent operation.

This model is 100% dimensionally compatible with the old ESPA Silen 75M, 100M, and 150M models, allowing for a direct (plug & play) replacement without the need to modify existing piping.

Key Advantages of the ESPA Silen S Pump

• Ultra Silent: Advanced engineering to minimize vibration and acoustic noise.
• Salt Compatibility: Designed with resistant materials, it is ideal for use with salt chlorination and seawater.
• Large Capacity Pre-filter: Transparent lid with an anti-block locking system that facilitates maintenance and debris visualization.
• Self-priming: Automatic suction capacity up to 4 metres, ensuring safe start-ups.
• Thermal Protection: Single-phase versions feature a built-in thermal protector to prevent damage from overheating.

Technical Specifications and Performance Tables

The Silen S range stands out for its construction using reinforced technical polymers and an AISI 431 stainless steel shaft. Below, we detail the electrical and hydraulic data based on official documentation.

Electrical and Hydraulic Data – Silen S Range

Consult the detailed table below for consumption, power, and flow specifications for each model in the range:

Technical Dimensions – Silen S Range

Frequently Asked Questions (FAQ)

1. Is the ESPA Silen S pump compatible with the old Silen 75/100/150?

Yes, the ESPA Silen S was designed to maintain the exact same suction and discharge heights as the original Silen models, allowing for a direct replacement without needing to change existing pipework.

2. Is this pump suitable for salt electrolysis systems?

Absolutely. The pump uses corrosion-resistant materials, such as the AISI 431 stainless steel shaft and a high-quality mechanical seal, making it ideal for pools with salt water treatment.

3. What is the noise level of the Silen S?

This model is classified as totally silent. It was developed with optimized hydraulic components to reduce turbulence and vibrations, making it one of the quietest pumps on the market.

4. Do the single-phase models include thermal protection?

Yes, all single-phase versions (230V) of the Silen S come equipped with an integrated thermal protector, which automatically shuts down the pump in case of overheating to protect the motor.

5. What maintenance is required to ensure a long service life?

Maintenance is simple: just regularly check the pre-filter basket through the transparent lid. Keeping the basket clean prevents unnecessary motor strain and ensures maximum filtration flow.