Radford Series Pumps
Advanced Sewage Solutions with Radford Series Pumps
The Radford Series self-priming sewage pumps, available from Isle Pump and Dredge, combine simplicity, durability, and cutting-edge design for exceptional performance in sewage management. These pumps set a new benchmark in the industry with advanced technology, superior self-priming capabilities, and energy-efficient operation. Built to meet rigorous international standards, the Radford Series reflects a commitment to innovation and continuous improvement, ensuring they exceed market demands and customer expectations.
The Radford Series features a unique axial circumfluence outer-mix design that enables efficient self-priming without the need for a fixed base valve or manual water introduction, simplifying operations compared to traditional systems.

These pumps are designed to handle large solids, fibrous materials, and challenging mediums such as slurry, fibrin, and mixed suspensions. This advanced design ensures reliable performance, even in the toughest applications.
Suitable for municipal sewage systems, aquaculture, light industry, and sectors like textiles, food processing, chemical production, and power generation, the Radford Series offers a reliable and efficient solution for handling difficult materials and demanding tasks.
Contact Isle Pump and Dredge today to learn how the Radford Series Self-Priming Pumps can elevate your operations with unmatched reliability and performance.
Setting the Standard in Self-Priming Pump Performance
DAE Pumps’ self-priming pumps are built for exceptional durability and efficiency, making them ideal for tough applications like slurry transfer, dredging, and dewatering. These pumps provide reliable suction power and long-lasting operation, ensuring seamless performance even in challenging environments.
Precision-engineered to minimize downtime and maximize productivity, DAE self-priming pumps excel in handling abrasive slurries, thick fluids, and water with heavy solids. Their robust design and advanced functionality make them a trusted choice for industries requiring dependable, high-performing solutions.
Choose DAE Pumps for reliable, efficient operation in your most demanding tasks. Contact Isle Pump and Dredge today to learn how DAE Pumps can optimize your pumping needs!
Key Features of Radford Series Pumps
The Radford Series Self-Priming Pumps are engineered to deliver reliable and efficient performance across a variety of wastewater and sewage applications. With advanced features and durable construction, these pumps are designed to handle challenging conditions with ease.
The pumps can manage liquids with densities of up to 9.18 lb/gal, making them suitable for various fluid types. Their top discharge configuration ensures optimal fluid flow and discharge efficiency, while the ability to process solids up to 0.27 inches in diameter reduces clogging and enhances operational reliability. With a pH compatibility range of 5 to 8, the Radford Series is ideal for diverse wastewater applications.

Built from a specialized aluminum alloy, these pumps are lightweight, corrosion-resistant, and exceptionally durable. They include enhanced water leakage protection at cable entry points to safeguard against electrical issues, further improving reliability.
The Radford Series is powered by high-performance Class F motors equipped with thermal switches in each winding, offering added protection and ensuring consistent performance. An innovative cooling design keeps the motor running smoothly, even under demanding conditions. Additionally, the pumps are fitted with 55HRC high-chrome impellers, providing excellent wear resistance for extended service life.
These advanced features make the Radford Series Self-Priming Pumps a dependable and cost-effective solution for handling sewage and wastewater with efficiency and durability.
Radford Series Self-Priming Pump Models

Radford 240 Self-Priming Pump – 2" / 130 GPM / 5 HP
The Radford 240 is a compact yet efficient pump featuring a 2-inch discharge and a 5 HP motor, delivering 130 GPM. Designed for sewage management in urban, industrial, and municipal applications, it boasts a sturdy gray iron casing, chromium iron impeller, and stainless steel components for durability and reliable performance.
Radford 340 Self-Priming Pump – 3" / 175 GPM / 5 HP
This 3-inch discharge pump offers a flow rate of 175 GPM powered by a 5 HP motor. It’s engineered for efficient and quiet sewage handling in industrial and urban environments, combining a gray iron casing and a durable chromium iron impeller for longevity.
Radford 4180 Self-Priming Pump – 4" / 440 GPM / 10 HP
Equipped with a 4-inch discharge and a 10 HP motor, the Radford 4180 delivers a flow rate of 440 GPM. This pump is built to handle challenging sewage transfer tasks efficiently, featuring a robust gray iron casing and chromium iron impeller for long-lasting use.
Radford 4110 Self-Priming Pump – 4" / 440 GPM / 15 HP
The Radford 4110 matches the 4180 model’s 440 GPM flow but is powered by a more robust 15 HP motor, making it ideal for heavier-duty sewage operations. Its durable design ensures reliable performance in demanding conditions.
Radford 4880 Self-Priming Pump – 4" / 350 GPM / 10 HP
Delivering 350 GPM with a 4-inch discharge and a 10 HP motor, the Radford 4880 is designed for efficient sewage management with energy-saving features and low noise. Its durable construction ensures an extended service life in tough applications.
Radford 5150 Self-Priming Pump – 5" / 530 GPM / 20 HP
With a 5-inch discharge and a 20 HP motor, the Radford 5150 efficiently pushes 530 GPM, offering a balance of power and durability. Its rugged build and low operational noise make it a reliable choice for high-demand sewage tasks.
Radford 6150 Self-Priming Pump – 6" / 790 GPM / 20 HP
The Radford 6150, featuring a 6-inch discharge and 20 HP motor, handles 790 GPM with ease. It’s designed for large-scale sewage operations, delivering efficiency and reliability in challenging environments.
Radford 6220 Self-Priming Pump – 6" / 790 GPM / 30 HP
The Radford 6220 matches the flow of the 6150 model at 790 GPM but is powered by a 30 HP motor for enhanced performance. It’s built for heavy-duty tasks, combining efficiency and durability for demanding sewage operations.
Radford 8220 Self-Priming Pump – 8" / 1230 GPM / 30 HP
With an 8-inch discharge and a 30 HP motor, the Radford 8220 delivers 1230 GPM. This pump is ideal for extensive sewage management, offering durable construction and reliable long-term performance.
Radford 8550 Self-Priming Pump – 8" / 1230 GPM / 75 HP
Powered by a 75 HP motor, the Radford 8550 builds on the 8220 model with the same 1230 GPM flow rate but enhanced power for high-volume sewage tasks. Its rugged construction ensures it handles heavy-duty applications with ease.
Radford 1050 Self-Priming Pump – 10" / 1850 GPM / 75 HP
The Radford 1050 is designed for large-scale sewage projects, featuring a 10-inch discharge and a 75 HP motor capable of 1850 GPM. It combines high efficiency with durable construction for industrial and municipal applications.
Radford 1250 Self-Priming Pump – 12" / 3520 GPM / 75 HP
As the largest in the series, the Radford 1250 features a 12-inch discharge and a powerful 75 HP motor, delivering 3520 GPM. It’s engineered for the most demanding sewage applications, offering unmatched flow rates and robust performance.
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