Introduction

As a dedicated hot tub and pool equipment specialist, I’m excited to present the Sta-Rite 5P2R series pump, model SR1503N. This powerful 1.5HP (1.1kW) three-phase pump is designed to deliver exceptional performance for larger hot tubs, pools, and commercial applications.

Cutting-Edge Design and Construction

Advanced Material Technology

The Sta-Rite 5P2R series pumps showcase the pinnacle of material engineering:

• Precision-moulded from reinforced fiberglass
• Exceptional temperature and corrosion resistance
• Lightweight yet incredibly strong thermoplastic body
• Engineered for high-pressure operations

Premium Internal Components

Every internal part of this pump is crafted for durability and performance:

• Special motor shaft made from high-grade stainless steel
• Inner components constructed from either high-grade stainless steel or advanced thermoplastic materials

Key Features

Innovative Pump Design

• Self-priming diffuser: Ensures efficient operation and easy start-up
• ‘Hi-Rise’ mounting base: Provides stability and simplifies installation

High-Performance Impeller

• Precision-moulded from glass-filled polycarbonate
• Engineered for unusually smooth water passages
• Delivers outstanding performance and efficiency

Heavy-Duty Three-Phase Motor

The 50Hz three-phase motor is the powerhouse of this pump:

• Designed for continuous and quiet operation
• Features a durable stainless steel shaft
• Equipped with sealed and permanently lubricated bearings
• Runs cooler for extended lifespan, even in high ambient temperatures

Advanced Sealing Technology

The mechanical seal is a hallmark of this pump’s quality:

• Precision-lapped and highly polished
• Constructed from carbon ceramic stainless steel
• Ensures maximum drip-proof and corrosion-free protection

User-Friendly Maintenance

I’ve selected this pump for its practical features that simplify maintenance:

• Stainless steel pump clamp: Easily removable for quick access to all serviceable components
• ‘See-through’ trap lid: Engineered to withstand 4 bar test pressure and high vacuum conditions
• Large 5″ lock-in basket: Ensures efficient debris collection and easy cleaning

Specifications Table

Specification	Detail
Model	SR1503N
Horsepower	1.5HP (1.1kW)
Phase	3 Phase
Suction & Delivery	1.5″
Material	Reinforced fiberglass
Impeller	Glass-filled polycarbonate
Motor Shaft	Stainless steel
Seal	Carbon ceramic stainless steel
Basket Size	5″
Pressure Resistance	4 bar test pressure

• Documentation associated with this product

  Installation and maintenance manual

  • Installation manual

  Leaflet

  • Leaflet

Installation and Compatibility

The SR1503N model features 1.5″ suction and delivery connections, making it versatile for various hot tub and pool setups. Its ‘Hi-Rise’ mounting base ensures a stable installation, while the self-priming design simplifies the setup process. The three-phase motor makes this pump ideal for commercial applications or larger residential systems where three-phase power is available, providing enhanced efficiency and power for demanding installations.

Maintenance Recommendations

To ensure your Sta-Rite pump continues to operate at peak performance:

1. Regularly inspect and clean the 5″ basket to prevent debris accumulation.
2. Check the ‘see-through’ trap lid periodically for any signs of wear or damage.
3. Maintain a clean and well-ventilated area around the pump to ensure optimal cooling.
4. Schedule regular professional inspections to catch any potential issues early.

Important Note for Salt Chlorinated Systems

It’s crucial to note that this specific Sta-Rite Pump (SR1503N) is not compatible with salt chlorinated pools or hot tubs. However, if you have a salt chlorinated system, Sta-Rite offers specially designed versions. These compatible models can be identified by the suffix “SW” added to the model code.

Conclusion

The Sta-Rite 5P2R series SR1503N pump represents the pinnacle of hot tub and pool pump technology for three-phase systems. Its robust 1.5HP motor, coupled with advanced materials and thoughtful design, makes it an excellent choice for those seeking reliability, efficiency, and high performance in larger or commercial settings. Whether you’re upgrading your existing system or installing a new one, this pump is designed to provide years of trouble-free operation, ensuring your hot tub or pool remains in optimal condition. The SR1503N is perfect for applications requiring substantial water flow and pressure, making it ideal for larger pools,