ESPA Nox Self-Priming Pump – Efficiency and Silence for Your Pool

The ESPA Nox Pump is a single-stage self-priming centrifugal electric pump, specifically designed for water recirculation and filtration in domestic and residential swimming pools. Renowned for its compact design and durability, the Nox series is the ideal choice for those seeking continuous duty equipment with extremely quiet operation.

This model features a pre-filter with a transparent lid for easy maintenance and includes 50mm union connectors, ensuring a straightforward and immediate installation.

Key Benefits of the ESPA Nox Pool Pump

Engineered with high-tech materials, the ESPA Nox stands out for its reliability and versatility across the European market:

• Saltwater Compatible: Perfectly suited for pools with salt chlorination treatments up to 7 g/l.
• Self-Priming up to 4m: Excellent priming capability, allowing for installations above the water level.
• Whisper-Quiet Operation: Specifically designed to minimize vibrations and acoustic noise.
• AISI 431 Stainless Steel Shaft: Maximum protection against corrosion in humid environments.

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Technical Specifications and Performance

Review the detailed characteristics and power consumption data for the various models in the Nox range.

Dimensions (mm)

Construction Materials and Operating Limits

Component	Material
Pump Body / Impeller	High-resistance technopolymer
Motor Shaft	Stainless Steel AISI 431
Pre-filter Basket	Technopolymer
Mechanical Seal	Alumina-Graphite
Max. Water Temperature	40 ºC

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Frequently Asked Questions (FAQ) – ESPA Nox

1. Can this pump be used in saltwater pools?

Yes, the ESPA Nox range is perfectly suitable for pools equipped with salt electrolysis treatments with concentrations up to 7 g/l of salt.

2. Does the pump include connection accessories?

Yes, the pump is supplied with union connectors (solvent weld) for 50mm diameter piping and a 2-meter power cable with a type F plug.

3. What is the noise level of the ESPA Nox?

Nox pumps are classified as silent, engineered to significantly reduce acoustic noise and vibrations during continuous operation.

4. Can I install the pump above the pool water level?

Certainly. The ESPA Nox is a self-priming pump up to 4 metres, providing excellent suction capacity even when installed above the waterline.

5. What protects the motor in case of overheating?

The motor features built-in thermal protection and Class F insulation, ensuring the equipment automatically shuts off in case of a thermal anomaly to preserve the motor’s lifespan.

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Maintenance and Installation Notes

To ensure the longevity of your ESPA Nox Pump, we recommend periodic cleaning of the pre-filter basket. The transparent lid allows for a quick visual check without needing to open the unit. Always ensure the drain plug is securely tightened before the initial startup.