AQUAFLOW ETN SERIES

The ETN Series pump by Aquaflow is a cutting-edge solution designed to deliver exceptional performance, durability, and efficiency. Conforming to the EN 733 standard, this horizontal volute casing, single-stage centrifugal pump is engineered for seamless operation across a wide range of industrial and commercial applications.

With a robust back pull-out design and integrated bearing brackets, the ETN Series is built to ensure continuous reliability, even under the most demanding conditions. Let’s dive into its technical capabilities, materials, applications, and more to see why this pump is a standout choice.

Technical Data

• Pump Sizes: DN 32 to DN 150 mm
• Flow Rate: Up to 1930 m³/h
• Head: Up to 160 m
• Fluid Temperature: -30 °C to +140 °C
• Operating Pressure: Up to 16 bar
• Speed: Up to 2900 rpm

This comprehensive range ensures that the ETN Series can meet a wide array of pumping needs, from small-scale operations to large industrial systems.

Premium Material Selection

The ETN Series is constructed using the highest quality materials, ensuring long-lasting performance and resistance to wear:

• Grey Cast Iron (EN-GJL-250 / A48 Cl. 35B): For robust general-purpose applications.
• Nodular Cast Iron (EN-GJS-400-15 / A536 Gr. 60-40-18 / JS1025): Provides enhanced strength and toughness.
• Stainless Steel (1.4408 / A743 Gr. CFS M): Exceptional for handling corrosive fluids or environments.

These materials offer versatility to adapt the pump to diverse operational requirements and fluid characteristics.

Applications of the ETN Series

The ETN Series excels in pumping clean, non-aggressive liquids, making it the go-to choice for numerous applications:

• Domestic Water Systems
• Cooling Water Circulation
• Drinking Water Supply
• Heating and Hot Water Systems
• Water Treatment and Irrigation Pumps
• Deaerators and Demineralizer Plants
• Sand Filters and Tower Feed Systems
• Drainage Systems
• Condensate Handling
• PKO Dispatch and Portable Diesel Hydrants

Whether it’s for municipal water supply, industrial processing, or HVAC systems, the ETN Series is a reliable and efficient solution.

Unmatched Energy Efficiency

Efficiency is a cornerstone of the ETN Series design, making it one of the most energy-saving pumps in its class. Key features include:

1. Advanced Hydraulic System: Optimized impeller design trimmed to match the exact duty point, reducing energy wastage.
2. Optional PumpMeter: Intelligent monitoring for performance insights.
3. PumpDrive and Variable Speed Motor: Energy savings of up to 60%, with precise control over operation.
4. ErP Directive Compliance: Exceeds the MEI ≥ 0.4 minimum efficiency index, ensuring sustainable performance.

These features make the ETN Series a top choice for businesses aiming to reduce operational costs and achieve sustainability goals.

Reliability for Continuous Operation

The ETN Series is engineered to deliver maximum uptime and optimal performance:

• Low NPSH Values: Ensures smooth operation with minimal cavitation risks.
• Confined Volute Casing Gasket: Enhances sealing and prevents leaks.
• Durable Shaft Protecting Sleeve: Minimizes wear and extends pump life.
• Conical Seal Chamber: Prevents internal circulation while improving venting and flushing.

Every component of the ETN Series is designed to withstand demanding conditions, ensuring consistent and reliable performance over time.

Versatile Configurations for Every Need

The ETN Series offers a wide range of customization options to suit varying operational requirements:

• Shaft Seals: Choose from single mechanical seals, gland packing, or double mechanical seals as standard options.
• Material Variants: Available in different grades to handle diverse fluid properties.
• Flange Standards: Flanges comply with EN 1092, with an optional ASME bolt hole pattern for global compatibility.
• Pump Sizes: A comprehensive range of 62 sizes ensures the right fit for every application.

This flexibility makes the ETN Series an all-purpose pump solution capable of adapting to unique challenges.

Ease of Maintenance

Maintenance and serviceability are streamlined with the ETN Series:

• Replaceable Casing Wear Rings: Reduces wear on critical components, prolonging pump life.
• Forcing Screws: Simplify the dismantling of the pump casing, reducing downtime.
• Optional Monitoring Guard: Allows for real-time monitoring of temperature and vibrations.

The ETN Series minimizes downtime and simplifies upkeep, ensuring businesses can maintain peak efficiency with minimal disruption.

Why Choose the ETN Series?

The Aquaflow ETN Series combines cutting-edge engineering, robust materials, and energy-saving features, making it the ideal choice for:

• Industrial facilities seeking high flow rates and efficiency.
• Municipalities require reliable drinking water solutions.
• Commercial operations aiming to minimize maintenance costs.

With a commitment to performance, reliability, and sustainability, the ETN Series represents the gold standard in standardized water pumps.

FAQs

1. What makes the ETN Series different from other centrifugal pumps?
The ETN Series offers superior energy efficiency, robust construction, and a wide range of customizable options, making it ideal for various applications.

2. Is the ETN Series compliant with international standards?
Yes, the ETN Series is designed to meet EN 733 standards and offers optional flanges compatible with ASME standards.

3. Can the ETN Series handle corrosive fluids?
Yes, the pump is available in stainless steel configurations, making it suitable for mildly corrosive fluids.

4. What energy savings can I expect from the ETN Series?
With advanced hydraulic systems and optional variable speed drives, the ETN Series can achieve energy savings of up to 60%.

5. Is maintenance easy for the ETN Series pumps?
Yes, features like replaceable casing wear rings and forcing screws simplify maintenance and reduce downtime.

6. What industries can benefit most from the ETN Series?
Industries such as water treatment, HVAC, manufacturing, and municipal water supply benefit significantly from the ETN Series’ reliability and efficiency.