👑 Pentair Sta-Rite HD 3.0 HP Three Phase Pool Pump

The Flagship Commercial Powerhouse – Maximum 33 m³/hr Flow with IE3 Premium Efficiency for Large-Scale Installations 🚀

📋 Product Overview

The Pentair Sta-Rite HD 3.0 HP Three Phase is the ultimate expression of the Sta-Rite HD range—an industrial-grade circulation pump engineered for the most demanding commercial and large-scale pool installations. With a commanding 33 m³/hr flow rate at 8m head from a robust 2.2 kW motor, this pump delivers the serious circulation capacity that leisure centres, municipal pools, and high-volume facilities require.

Manufactured 100% at Pentair’s state-of-the-art facility in Pisa, Italy, the 3.0 HP model meets stringent IE3 energy efficiency standards—the highest classification for motors of this power rating. When pumps run 14+ hours daily, 365 days per year, IE3 efficiency translates to substantial energy savings that directly impact operational budgets.

Three-phase motor technology is essential at this power level, providing the balanced torque delivery, reduced vibration, lower heat generation, and substantially extended motor lifespan that commercial operations demand. The heavy-duty 36 kg construction reflects the industrial-grade engineering throughout—from the premium SKF sealed bearings to the AISI 304 stainless steel shaft components.

The signature XL pre-filter basket handles the heavy debris loads typical of high-traffic commercial facilities, whilst the PPO resin sleeved impeller delivers certified saltwater compatibility up to 0.40%. Backed by Pentair’s comprehensive 3-year warranty, the Sta-Rite HD 3.0 HP Three Phase is the definitive choice for commercial pool operators who accept nothing less than maximum performance.

⭐ Key Features

✅ Maximum Power Output – 2.2 kW motor delivers 33 m³/hr flow at 8m head, the highest capacity in the entire Sta-Rite HD range

✅ IE3 Premium Efficiency Compliant – Meets highest European motor efficiency standards for substantial energy savings in commercial operation

✅ Industrial-Grade Construction – Heavy-duty 36 kg build engineered for continuous operation in demanding commercial environments

✅ Three-Phase Reliability – Balanced power delivery provides smoother operation, reduced vibration, and significantly extended motor lifespan

✅ 100% Italian Manufacturing – Built at Pentair’s Pisa facility with European commercial-grade quality standards

✅ XL Pre-Filter Basket – Extra-large capacity handles heavy debris loads in high-traffic commercial and public facilities

✅ Premium SKF Sealed Bearings – Automotive-grade bearings deliver exceptional longevity under intensive commercial workloads

✅ Bi-Material Stainless Steel Shaft – AISI 304 stainless steel drive-end ensures corrosion resistance under continuous operation

✅ PPO Resin Sleeved Impeller – Advanced polymer construction withstands harsh chemicals and commercial saltwater systems

✅ Saltwater Compatible – Certified for commercial salt chlorination systems up to 0.40% salinity

✅ Quick Self-Priming – Rapid, safe startup minimises facility downtime

✅ ¼ Turn Opening Lid – Tool-free access for fast maintenance—essential in commercial settings

✅ Stainless Steel Locking Clamp – Secure, corrosion-resistant closure for reliable sealing

✅ 63mm Threaded Connections – Generous 2″ inlet/outlet with unions included

✅ IP-X5 Weather Protection – Splash-resistant motor housing for plant room installations

✅ 3-Year Warranty – Comprehensive commercial coverage including bearings (90-day mechanical seal)

🔧 Technical Specifications

Specification	Value
Model	Sta-Rite HD (5P6RH-3)
Part Number	P-STRHD-303E3
Motor Power	3.0 HP / 2.2 kW
Phase	Three Phase (Tri)
Voltage	380–420V
Frequency	50Hz
Flow Rate @ 8m Head	33 m³/hr
Energy Efficiency Class	IE3 (Premium Efficiency)
Recommended Pool Size	70–120 m³ (up to 250 m³ commercial)
Inlet/Outlet	63mm threaded
Union Diameter	63mm ID
Unions Included	Yes
Total Length	667mm
Weight	36 kg
IP Rating	IP-X5
Salt Resistance	Up to 0.40%
Shaft Material	Bi-material with AISI 304 SS drive-end
Bearings	SKF sealed
Impeller Material	PPO Resin (sleeved)
Warranty (Pump)	3 Years (including bearings)
Warranty (Mechanical Seal)	90 Days
Country of Origin	Italy 🇮🇹

💰 Usage Costs & Running Expenses

The Sta-Rite HD 3.0 HP Three Phase delivers maximum flow for large commercial installations. Here’s a transparent analysis of operating costs at commercial scale.

📊 Annual Running Cost Calculation

Base Parameters:

• Power consumption: 2.2 kW
• Current UK electricity rate: £0.2635 per kWh (Ofgem Price Cap, Q4 2025)
• Commercial rates typically: £0.24–£0.28 per kWh

🏊 Scenario 1: Seasonal Commercial Pool (April–October)

Large holiday parks, outdoor lidos, and seasonal leisure facilities.

Calculation:

• Daily runtime: 12 hours
• Operating season: 210 days (April–October)
• Annual operating hours: 12 × 210 = 2,520 hours
• Energy consumption: 2.2 kW × 2,520 hours = 5,544 kWh
• ✅ Annual running cost: 5,544 × £0.2635 = £1,460.84

💵 Monthly cost during season: approximately £209

♨️ Scenario 2: Year-Round Large Commercial Pool

Leisure centres, large hotels, and indoor facilities operating continuously.

Calculation:

• Daily runtime: 14 hours
• Operating days: 365 days
• Annual operating hours: 14 × 365 = 5,110 hours
• Energy consumption: 2.2 kW × 5,110 hours = 11,242 kWh
• ✅ Annual running cost: 11,242 × £0.2635 = £2,962.27

💷 Monthly cost: approximately £247

🏢 Scenario 3: High-Demand Municipal/Leisure Centre

Large leisure centres, municipal pools, and facilities with extended operating hours.

Calculation:

• Daily runtime: 16 hours
• Operating days: 365 days
• Annual operating hours: 16 × 365 = 5,840 hours
• Energy consumption: 2.2 kW × 5,840 hours = 12,848 kWh
• ✅ Annual running cost: 12,848 × £0.2635 = £3,385.45

💰 Monthly cost: approximately £282

⚡ IE3 Efficiency: The Commercial Advantage

At 2.2 kW power consumption, IE3 efficiency delivers significant savings over standard motors:

Annual savings calculation (5,110 hours year-round commercial operation):

Efficiency Class	Motor Efficiency	Effective Draw	Annual kWh	Annual Cost
IE1 (Standard)	82%	2.35 kW	12,009 kWh	£3,164.37
IE2 (High)	85%	2.27 kW	11,600 kWh	£3,056.60
IE3 (Premium)	88%	2.19 kW	11,191 kWh	£2,948.83

💸 Annual saving vs IE1: £215.54 💸 Annual saving vs IE2: £107.77

📈 10-year saving vs IE1: £2,155.40

📊 Complete Sta-Rite HD Three-Phase Range Comparison

Model	Power	Flow @ 8m	Price	Annual Cost*	Best Application
Sta-Rite HD 1.5 HP 3ph	1.1 kW	26 m³/hr	£674.00	£1,481.13	Medium commercial
Sta-Rite HD 2.0 HP 3ph	1.5 kW	29 m³/hr	£708.99	£2,019.73	Large commercial
Sta-Rite HD 3.0 HP 3ph	2.2 kW	33 m³/hr	£848.00	£2,962.27	Large leisure/municipal

*Based on 5,110 hours year-round commercial operation at £0.2635/kWh

📈 2.0 HP vs 3.0 HP: Choosing the Right Commercial Model

Factor	Sta-Rite HD 2.0 HP 3ph	Sta-Rite HD 3.0 HP 3ph	Difference
Power	1.5 kW	2.2 kW	+47%
Flow @ 8m	29 m³/hr	33 m³/hr	+14%
Weight	33 kg	36 kg	+3 kg
Length	645mm	667mm	+22mm
Price	£708.99	£848.00	+£139.01
Annual Cost (5,110 hrs)	£2,019.73	£2,962.27	+£942.54
Best Pool Size	Up to 200 m³	Up to 250 m³	—

Choose the 3.0 HP when:

• Pool volume exceeds 180,000 litres (180 m³)
• Rapid turnover is essential (under 4 hours for large volumes)
• Multiple water features demand high flow capacity
• Complex pipework creates significant friction losses
• Maximum circulation headroom is required for future expansion
• Facility operates at near-maximum capacity regularly

🎯 Real World Applications

🏛️ Municipal & Public Leisure Centres

The Sta-Rite HD 3.0 HP Three Phase is engineered for large public pools serving hundreds of bathers daily. With 33 m³/hr flow handling pools up to 250m³, and IE3 efficiency reducing operating costs, this pump meets the demanding specifications of municipal leisure facilities.

🏨 Large Hotel & Resort Pools

Major resort pools require reliable, high-capacity circulation. The 3.0 HP delivers the flow needed for substantial hotel pools whilst the IE3 efficiency helps control utility budgets in hospitality operations.

🏫 School & University Aquatic Centres

Educational aquatic facilities with competition-sized pools and intensive swimming programmes need pumps that handle extended operation without compromise. The industrial-grade 36 kg construction ensures reliability throughout academic years.

🏊‍♂️ Swimming Clubs & Training Centres

Facilities with 25m+ pools and intensive training schedules benefit from the maximum flow capacity and IE3 efficiency. Lower operating costs help club finances whilst robust construction handles demanding usage patterns.

🎢 Large Holiday Parks

Major holiday parks with substantial pools serving thousands of guests seasonally need pumps that deliver consistent performance throughout peak periods. The XL basket handles increased debris loads whilst three-phase reliability ensures minimal downtime.

🏥 Hydrotherapy & Rehabilitation Centres

Medical and therapeutic pool facilities require dependable circulation for consistent water quality. The IE3 efficiency and premium construction meet the exacting standards of healthcare environments.

🔄 Commercial Pump Replacement

When replacing existing commercial three-phase pumps, the Sta-Rite HD’s standard connections enable straightforward retrofitting. The significant efficiency improvements over older equipment often justify upgrade even before pump failure.

💡 Cost Savings Examples

📍 Scenario: Upgrading from an Ageing Commercial 3.0 HP Pump

Older commercial pumps typically consume 25–35% more electricity than modern IE3-rated equipment.

Example comparison:

• ❌ Aged pump power draw: approximately 2.80 kW
• ✅ New Sta-Rite HD 3.0 HP 3-Phase (IE3): 2.2 kW
• Municipal operation: 16 hours/day × 365 days = 5,840 hours annually

Annual energy consumption:

• ❌ Old pump: 2.80 kW × 5,840 = 16,352 kWh = £4,308.75
• ✅ Sta-Rite HD: 2.2 kW × 5,840 = 12,848 kWh = £3,385.45

💰 Annual saving: £923.30

📈 5-year savings: £4,616.50

⏱️ Payback period: approximately 11 months

📍 Scenario: Total Cost of Ownership – 10-Year Municipal Analysis

Municipal facilities must consider total cost of ownership for procurement decisions.

10-year comparison (16 hours/day, 365 days/year = 5,840 hours annually):

Factor	Budget 3-Phase Pump	Sta-Rite HD 3.0 HP 3ph
Purchase price	£650	£848.00
Efficiency class	IE2	IE3
Power consumption	2.45 kW	2.2 kW
Annual energy cost	£3,771.17	£3,385.45
10-year energy cost	£37,711.70	£33,854.50
Expected lifespan	6–8 years	12–18 years
Replacement (year 7)	£700	£0
10-year total cost	£39,061.70	£34,702.50

💷 10-year saving with Sta-Rite HD: £4,359.20

Plus avoided downtime, replacement hassle, and procurement costs

📍 Scenario: Energy Cost Over Extended Commercial Lifespan

The Sta-Rite HD’s expected 12–18 year lifespan means energy costs dominate total ownership costs.

15-year projection (14 hours/day, 365 days/year = 5,110 hours annually):

Factor	Calculation	Value
Annual energy consumption	2.2 kW × 5,110 hours	11,242 kWh
Annual energy cost	11,242 × £0.2635	£2,962.27
15-year energy cost	£2,962.27 × 15	£44,434.05
Purchase price	—	£848.00
15-year total cost	—	£45,282.05

With IE1 standard motor (same power output):

• Annual: 2.35 kW × 5,110 = 12,009 kWh = £3,164.37
• 15-year energy: £47,465.55
• Replacement at year 8: £700

💷 15-year saving with Sta-Rite HD IE3: £2,883.50 (energy + avoided replacement)

📍 Scenario: Right-Sizing from Oversized 4.0 HP Pump

Some facilities operate unnecessarily large pumps. Right-sizing delivers substantial savings.

Example comparison:

• ❌ Oversized 4.0 HP pump: 3.1 kW
• ✅ Right-sized Sta-Rite HD 3.0 HP: 2.2 kW
• Commercial operation: 14 hours/day × 365 days = 5,110 hours

Annual energy consumption:

• ❌ 4.0 HP pump: 3.1 kW × 5,110 = 15,841 kWh = £4,174.10
• ✅ Sta-Rite HD: 2.2 kW × 5,110 = 11,242 kWh = £2,962.27

💰 Annual saving: £1,211.83

📈 5-year savings: £6,059.15

⏱️ Payback period: approximately 8 months (if replacing functioning pump)

📥 Downloads & Resources

📄 Pentair Sta-Rite HD Technical Datasheet – Complete specifications, dimensional drawings, and performance curves for all Sta-Rite HD models (PDF)

🏆 Why Choose the Pentair Sta-Rite HD 3.0 HP Three Phase?

✅ Maximum Flow Capacity – 33 m³/hr delivers the highest output in the Sta-Rite HD range for large-scale installations

✅ IE3 Premium Efficiency – Highest European motor efficiency classification delivers measurable energy savings at commercial scale

✅ Industrial-Grade Construction – Heavy-duty 36 kg build engineered for continuous commercial operation

✅ Three-Phase Reliability – Balanced power delivery ensures smooth operation, reduced vibration, and extended motor life

✅ European Manufacturing Excellence – 100% made in Pentair’s Italian facility with rigorous commercial-grade quality control

✅ Premium SKF Bearings – Automotive-grade bearings deliver exceptional longevity under intensive commercial workloads

✅ XL Pre-Filter Basket – Handles heavy debris loads in high-traffic public and commercial facilities

✅ Saltwater Ready – Certified 0.40% salt resistance for commercial salt chlorination installations

✅ Comprehensive 3-Year Warranty – Commercial-grade coverage reflecting Pentair’s confidence in build quality

🏗️ Why Buy From Parts4Tubs?

✅ Authorised Pentair Stockist – Genuine products with full UK manufacturer warranty coverage

✅ Commercial & Municipal Expertise – Technical knowledge of large-scale installations and commercial pool requirements

✅ Competitive Trade Pricing – Professional prices available without complex procurement requirements

✅ Fast UK Delivery – In-stock items dispatched promptly with reliable nationwide courier service

✅ Commercial Account Options – Volume pricing and account facilities available for facility managers and contractors

✅ Project Support – Assistance with specifications and technical queries for large-scale installations

✅ No-Hassle Returns – Simple returns process if products don’t meet your requirements

✨ Summary

The Pentair Sta-Rite HD 3.0 HP Three Phase Pump represents the pinnacle of the Sta-Rite HD range—an industrial-grade circulation solution for the most demanding commercial applications. With maximum 33 m³/hr flow, IE3 premium efficiency, and robust 36 kg construction, this pump handles large leisure centres, municipal pools, and high-volume facilities up to 250m³. Italian manufacturing excellence, premium SKF bearings, and commercial-grade components throughout ensure years of reliable service. Annual running costs from approximately £1,461 for seasonal commercial use, combined with potential 10-year savings of £4,350+ versus budget alternatives, deliver compelling value for facility managers and commercial operators.