Plastica Argonaut AV250-3DN-2 Pump | 2.0HP 1.5kW Three Phase Pool Circulation Pump

💧 Professional-grade three-phase circulation for large residential and commercial aquatic installations demanding reliable, continuous high-flow performance

📋 Product Overview

The Plastica Argonaut AV250-3DN-2 represents the pinnacle of the renowned Argonaut AV Series, delivering robust three-phase power for demanding commercial and large residential pool applications. This 2.0 HP (1.5kW output) circulation pump combines industrial-grade construction with self-priming capability and corrosion-resistant materials to provide years of dependable service in both chlorinated and saltwater environments.

Built with a glass-filled polypropylene tank, AISI 316 stainless steel components, and a TÜV-certified IPX5 rated motor, the AV250-3DN-2 handles the toughest circulation challenges. Whether you’re managing a commercial spa facility, large residential pool, or high-capacity water feature, this pump delivers consistent performance with flow rates up to 240 litres per minute and maximum head pressure of 20 meters.

Designed for professionals who refuse to compromise on quality, the AV250-3DN-2 offers the perfect balance of power, efficiency, and longevity. Its three-phase motor configuration provides smoother operation, reduced electrical noise, and superior energy efficiency compared to single-phase alternatives, making it the smart choice for installations where reliability and running costs matter.

⭐ Key Features

✅ 2.0 HP Three-Phase Motor – Industrial-grade 1.5kW output power delivers consistent high-flow circulation for large pools and commercial installations, with smoother operation and reduced vibration compared to single-phase motors

✅ Self-Priming Up to 3 Meters – Automatic self-priming capability eliminates manual intervention and allows flexible installation positions, even above water level, saving installation time and expanding mounting options

✅ Glass-Filled Polypropylene Construction – Superior chemical resistance handles chlorine, bromine, iodine, and saltwater without degradation, ensuring decades of service life in harsh aquatic environments

✅ AISI 316 Stainless Steel Shaft & Seal – Marine-grade stainless steel components resist corrosion and wear, with carbon/ceramic seal assembly providing reliable leak-free operation in all water conditions

✅ IPX5 Rated Totally Enclosed Motor – Protected against water jets from any direction, this motor withstands harsh pool environments while maintaining safe, reliable electrical operation

✅ Large Clear-Lid Strainer Basket – Transparent inspection cover allows visual monitoring of debris without opening, while the generous basket capacity reduces cleaning frequency and maintenance time

✅ TÜV Certified Safety Standards – Meets stringent European EN60335-1 and EN60335-2-41 safety certifications, ensuring compliance with commercial installation requirements and insurance standards

✅ 2″ / 63mm Union Connections – Professional BSP 2¾” threaded unions enable quick installation and maintenance without disturbing plumbing, reducing service time and preventing pipe stress

✅ Ultra-Quiet Operation (66-68 dB) – Whisper-quiet motor and precision-balanced impeller minimize noise pollution, ideal for installations near residential areas or spa environments where tranquility matters

✅ 240 LPM Maximum Flow Rate – High-capacity circulation moves 14,400 litres per hour, capable of turning over a 60,000-litre pool approximately four times daily for optimal water quality

🔧 Technical Specifications

Parameter	Specification
Model	AV250-3DN-S
Motor Type	Three Phase
Horsepower (HP)	2.0 HP
Power Output (P2)	1.5 kW
Power Input (P1)	Approx. 2.0–2.2 kW
Voltage	400V / 50Hz (Three Phase)
Phase Protection	8A automatic switch required per phase
Maximum Head	Approx. 20 meters
Maximum Flow Rate	240 Litres per Minute (14,400 LPH)
Tank Material	Glass-filled polypropylene
Shaft Material	AISI 316 stainless steel
Seal Type	Carbon/ceramic mechanical seal
Motor Protection	IPX5 rated (water jet protected)
Self-Priming Capability	Up to 3 meters suction lift
Inlet/Outlet Connections	2″ / 63mm unions (BSP 2¾” threads)
Noise Level	Approx. 66–68 dB
Certification	TÜV certified (EN60335-1 / EN60335-2-41)
Ambient Temperature Range	Maximum 40°C
Dimensions (A × B)	174mm × 578mm
Weight	Approx. 15-18 kg
Chemical Compatibility	Chlorine, bromine, iodine, saltwater

💰 Usage Costs & Running Expenses

📊 Annual Running Cost Calculation

The AV250-3DN-2’s three-phase motor configuration delivers significant efficiency advantages over single-phase alternatives. Here’s what you can expect for typical operational costs:

⚡ Standard Seasonal Operation (6 months):

• Power Input: 2.1 kW (average between 2.0-2.2 kW)
• Usage: 8 hours/day × 180 days = 1,440 hours/year
• Energy rate: £0.24 per kWh (UK average, Nov 2024)
• ✅ Annual cost: 2.1 × 1,440 × £0.24 = £726.91

⚡ Extended Season Operation (8 months):

• Usage: 8 hours/day × 240 days = 1,920 hours/year
• ✅ Annual cost: 2.1 × 1,920 × £0.24 = £969.22

⚡ Year-Round Commercial Operation:

• Usage: 10 hours/day × 365 days = 3,650 hours/year
• ✅ Annual cost: 2.1 × 3,650 × £0.24 = £1,839.60

💵 Three-Phase vs Single-Phase Savings

Compared to equivalent single-phase 2.0HP pump (typically 2.5kW input):

❌ Single-phase annual cost (seasonal): 2.5 × 1,440 × £0.24 = £864 ✅ AV250-3DN-2 annual cost: £726.91 💰 Saving: £137.09 per year (16% reduction)

Over 10-year lifespan: £137.09 × 10 = £1,370.90 total savings

📈 Long-Term Value Analysis

Initial Investment Comparison:

• ❌ High-end single-phase 2.0HP pump: £450-550
• ✅ AV250-3DN-2 three-phase pump: £520-620
• 💷 Premium: £70-100

⏱ Payback Period: £100 premium ÷ £137.09 annual savings = 9 months payback

💡 Additional Three-Phase Benefits Beyond Energy Costs:

• Longer motor lifespan (typically 15-20 years vs 8-12 for single-phase)
• Lower maintenance costs due to reduced electrical stress
• Smoother operation with less vibration wear on seals and bearings
• Reduced electrical noise and interference
• Better power factor efficiency for commercial installations

🎯 Real World Examples & Applications

🏊‍♂️ Large Residential Swimming Pools Perfect for pools ranging from 50,000 to 100,000 litres. The AV250-3DN-2 provides the circulation power needed for larger domestic installations where water clarity and turnover rate are essential. Three-phase power ensures quiet operation during extended daily run times, while the self-priming capability allows flexible equipment room placement up to 3 meters above water level.

♨️ Commercial Spa & Wellness Centers Ideal for spa facilities requiring continuous circulation for multiple pools or treatment areas. The robust three-phase motor handles extended daily operation (10-14 hours) without overheating, while the IPX5-rated motor withstands the humid spa environment. TÜV certification meets commercial installation insurance requirements, and the quiet 66-68dB operation maintains the tranquil atmosphere guests expect.

🌊 High-Capacity Water Features Designed for large decorative fountains, commercial ponds, and architectural water installations where continuous high-flow circulation is non-negotiable. The 240 LPM capacity and 20-meter maximum head ensure adequate pressure for multi-tier fountains or elevated water features. Corrosion-resistant construction handles treatment chemicals or natural water conditions with equal reliability.

🏢 Commercial Pool Upgrades An excellent replacement for aging commercial pool circulation systems. When upgrading from older, less efficient pumps, the AV250-3DN-2 offers modern efficiency standards while maintaining compatibility with existing 2″ plumbing infrastructure. The three-phase configuration typically requires minimal electrical modifications in commercial buildings already equipped with 400V three-phase supply.

🔄 System Expansion Projects Perfect for facilities adding capacity to existing pool systems or installing secondary circulation loops for enhanced water treatment. The pump’s professional-grade components ensure compatibility with sophisticated filtration systems, ozone generators, UV sterilizers, and automated chemical dosing equipment commonly found in commercial installations.

💡 Cost Savings Examples

📍 Scenario 1: Upgrading from Single-Phase to Three-Phase

Situation: A 75,000-litre commercial swimming pool currently uses a 10-year-old single-phase 2.0HP pump consuming 2.6kW.

❌ Current annual running cost:

• Power: 2.6 kW
• Usage: 10 hours/day × 300 days = 3,000 hours/year
• Cost: 2.6 × 3,000 × £0.24 = £1,872

✅ AV250-3DN-2 annual running cost:

• Power: 2.1 kW
• Usage: 10 hours/day × 300 days = 3,000 hours/year
• Cost: 2.1 × 3,000 × £0.24 = £1,512

💰 Annual saving: £360 📈 10-year saving: £3,600 ⏱ Equipment payback: Under 2 years including installation

📍 Scenario 2: Commercial Spa Efficiency Improvement

Situation: A wellness center operates two treatment pools requiring continuous circulation 12 hours daily, year-round.

❌ Old inefficient pumps (2 × older 2HP models at 2.8kW each):

• Combined power: 5.6 kW
• Usage: 12 hours/day × 365 days = 4,380 hours/year
• Annual cost: 5.6 × 4,380 × £0.24 = £5,881.92

✅ Modern AV250-3DN-2 pumps (2 units):

• Combined power: 4.2 kW (2.1kW each)
• Usage: 12 hours/day × 365 days = 4,380 hours/year
• Annual cost: 4.2 × 4,380 × £0.24 = £4,410.24

💰 Annual saving: £1,471.68 📊 5-year saving: £7,358.40 💷 ROI achieved in 18 months after equipment and installation costs

📍 Scenario 3: Seasonal Pool Operating Cost Reduction

Situation: A private residential pool (60,000 litres) operates 6 months per year with an aging 2.5HP single-phase pump.

❌ Current pump operating cost:

• Power: 2.7 kW (older, less efficient motor)
• Usage: 8 hours/day × 180 days = 1,440 hours/year
• Annual cost: 2.7 × 1,440 × £0.24 = £933.12

✅ AV250-3DN-2 operating cost:

• Power: 2.1 kW
• Usage: 8 hours/day × 180 days = 1,440 hours/year
• Annual cost: 2.1 × 1,440 × £0.24 = £726.91

💰 Annual saving: £206.21 📈 10-year saving: £2,062.10 ⚡ Additional benefit: Reduced carbon footprint of approximately 480 kg CO₂ per year

📥 Downloads & Resources

📄 Product Datasheet – Complete technical specifications and performance curves
Download PDF (PDF, 1.2MB)

📄 Installation & Owner’s Manual – Comprehensive installation instructions, wiring diagrams, and maintenance procedures
Download PDF (PDF, 2.8MB)

📄 Spare Parts Diagram – Exploded view with part numbers for maintenance and repairs
Included in Owner’s Manual

📄 Performance Curves – Three-phase pump flow and head characteristics
Included in Product Datasheet

📄 Wiring Diagrams – Three-phase motor connection schematics for 400V supply
Included in Owner’s Manual

🏆 Why Choose the Argonaut AV250-3DN-2?

✅ Three-Phase Efficiency – Save up to 16% on annual running costs compared to single-phase alternatives while enjoying smoother, quieter operation and extended motor lifespan

✅ Professional-Grade Durability – Glass-filled polypropylene tank and AISI 316 stainless steel components ensure decades of reliable service in the harshest chemical and saltwater environments

✅ TÜV Safety Certification – Meet stringent European EN60335 standards required for commercial installations, satisfying insurance requirements and regulatory compliance

✅ Self-Priming Convenience – Flexible installation up to 3 meters above water level eliminates priming hassles and expands equipment room placement options

✅ Maintenance-Friendly Design – Large clear-lid strainer basket, professional union connections, and accessible motor assembly minimize service time and reduce ongoing maintenance costs

✅ Proven Reliability – Part of the renowned ITT HydroAir Argonaut series with decades of proven performance in demanding commercial and residential installations worldwide

✨ Summary

The Plastica Argonaut AV250-3DN-2 delivers professional three-phase power for large residential pools and commercial aquatic installations. With its robust 2.0HP motor, self-priming capability, and corrosion-resistant construction, this pump provides reliable circulation for pools up to 100,000 litres. The three-phase configuration offers significant operating cost savings—up to £360 annually compared to single-phase alternatives—while delivering quieter operation and extended service life. TÜV certified and built with AISI 316 stainless steel components, the AV250-3DN-2 represents a smart investment for installations where reliability, efficiency, and professional-grade performance are non-negotiable.

Ready to upgrade your pool circulation system? Contact us today for expert advice on sizing and installation.