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LWA Series Lightweight Agitator, Hard Metal Dewatering Pumps Information

Features & Benefits

The LWA Series provides a unique combination of lightweight portability and abrasion-resistant performance, making it well suited for applications where standard lightweight pumps would wear quickly. The integrated agitator system enhances solids handling by keeping materials suspended and preventing accumulation.

Construction and Materials

The LWA Series is designed to withstand abrasive conditions through the use of hardened materials in the hydraulic components. This series utilizes an agitator-assisted hydraulic design that continuously mixes settled solids into the pumped liquid. The agitator and volute are constructed from ductile iron for strength and wear resistance, while the impeller and wear plate are made from high-chrome iron to handle abrasive slurries.

This construction allows the pump to maintain durability while remaining lighter than traditional heavy-duty slurry pumps. The pump is capable of handling solids up to approximately 0.4 inches, making it suitable for sand, silt, and fine aggregate. The top discharge configuration enhances motor cooling and supports operation in shallow water levels.

Motor and Operational Design

The LWA Series is equipped with a high-speed 2-pole motor operating at approximately 3450 RPM, delivering strong performance in portable dewatering applications.

A jacketed motor design uses the pumped liquid for cooling, allowing for continuous operation in demanding conditions. Built-in thermal protection ensures safe operation by preventing overheating.

Design Characteristics

Pump Type: Submersible, lightweight agitator dewatering pump

Hydraulics: Agitator-assisted solids suspension design

Construction: Ductile iron and high-chrome wear components

Motor Design: High-speed 2-pole motor

Cooling Method: Jacketed motor cooled by pumped liquid

Installation: Portable or fixed

Protection: Built-in thermal protection

Technical Summary

Power Range: 2 HP – 10 HP

Flow Capacity: Up to ~670 GPM

Head Range: Up to 120+ ft.

Solids Handling: Up to ~0.4 inch

Temperature Capability: ~104°F (40°C)

Motor Speed: ~3450 RPM

Typical Services & Applications

The LWA Series is designed for abrasive dewatering applications where portability is required. It is commonly used in construction, mining, utility, and industrial environments where sand, silt, or fine solids must be continuously removed.

These pumps are especially effective in applications where sediment settles quickly, as the built-in agitator keeps material suspended and improves overall pumping efficiency.