Multiquip ST41230 / ST41460 Submersible Centrifugal Pump – Heavy-Duty Dewatering Solutions

Water removal is a critical operation in construction, municipal services, industrial facilities, and flood control. For demanding environments where high volumes of water need to be moved efficiently, Multiquip submersible centrifugal pumps are a trusted choice worldwide. Two of the most popular models in this lineup are the Multiquip ST41230 and the Multiquip ST41460 Submersible Centrifugal Pumps.

Engineered with rugged construction, high flow capacity, and durability for continuous duty cycles, these pumps provide reliable, heavy-duty dewatering performance.

What Are the Multiquip ST41230 and ST41460 Submersible Centrifugal Pumps?

The Multiquip ST41230 and Multiquip ST41460 are part of Multiquip’s professional-grade line of submersible centrifugal pumps designed for medium- to large-scale dewatering tasks. Both models are built with cast iron construction, stainless steel components, and dual mechanical seals for long service life in abrasive and dirty water conditions.

• ST41230 – A 2-horsepower pump designed for tough mid-range dewatering projects.

• ST41460 – A more powerful 4-horsepower pump designed for higher-capacity and deeper head applications.

Both pumps are built to withstand continuous duty operation, making them popular among contractors, municipalities, and emergency response crews.

Key Features of the Multiquip ST41230 and ST41460

The ST41230 / ST41460 Pumps come with a set of features that make them reliable and efficient for professional use.

1. Powerful Electric Motors

• ST41230: 2 HP electric motor.

• ST41460: 4 HP electric motor.

• Both models are available in 230V, single-phase power.

• Designed for extended run times with thermal overload protection.

2. High Flow and Head Capacities

• ST41230: Pumps up to ~270 GPM with a maximum head of 62 feet.

• ST41460: Pumps up to ~366 GPM with a maximum head of 72 feet.

• Ideal for large-volume dewatering applications.

3. Solid Handling Capability

• Can pass solids up to 1.4 inches (35 mm).

• Prevents clogging when working in muddy, debris-heavy water.

4. Durable Construction

• Cast iron housing for rugged durability.

• Stainless steel motor casing resists corrosion.

• Double mechanical seals in an oil-filled chamber for protection against abrasive materials.

5. Portable but Heavy-Duty

• ST41230 Weight: ~120 lbs.

• ST41460 Weight: ~135 lbs.

• Both pumps are portable enough to transport but built for industrial strength.

6. Built-In Safety Features

• Thermal overload switches prevent overheating.

• Sealed design ensures waterproof and safe operation during continuous submersion.

Technical Specifications

Here are the detailed specifications for both models:

Multiquip ST41230

• Motor: 2 HP electric

• Power Supply: 230V, single-phase

• Weight: ~120 lbs (54 kg)

• Discharge Size: 4 inches (NPT)

• Max Flow Rate: ~270 GPM (1,022 L/min)

• Max Head Lift: ~62 ft (19 m)

• Solid Handling: Up to 1.4 in. (35 mm)

• Cord Length: 32 ft (9.7 m)

• Construction: Cast iron and stainless steel

Multiquip ST41460

• Motor: 4 HP electric

• Power Supply: 230V, single-phase

• Weight: ~135 lbs (61 kg)

• Discharge Size: 4 inches (NPT)

• Max Flow Rate: ~366 GPM (1,385 L/min)

• Max Head Lift: ~72 ft (22 m)

• Solid Handling: Up to 1.4 in. (35 mm)

• Cord Length: 32 ft (9.7 m)

• Construction: Cast iron and stainless steel

Benefits of the ST41230 / ST41460 Submersible Pumps

Both pumps provide significant advantages for contractors, industrial operators, and municipalities.

1. High-Volume Dewatering

With flow rates of 270–366 GPM, these pumps can move large amounts of water quickly, reducing downtime on the job site.

2. Durability and Longevity

Cast iron and stainless steel construction plus dual seals mean these pumps can operate in abrasive, debris-laden water without frequent breakdowns.

3. Handles Solids Without Clogging

Passing solids up to 1.4 inches allows efficient operation even in dirty water conditions.

4. Operator Safety

Thermal overload protection and waterproof sealed motors ensure reliability during long duty cycles.

5. Versatility

From construction trenches and industrial pits to stormwater management and flood cleanup, these pumps can handle multiple job environments.

Applications of the Multiquip ST41230 and ST41460

The ST41230 and ST41460 Submersible Centrifugal Pumps are versatile enough for a wide variety of tasks:

• Construction Sites – Dewatering excavations, foundations, and trenches.

• Municipal Utility Projects – Pumping storm drains, sewers, and manholes.

• Industrial Facilities – Managing wastewater, equipment pits, and water transfer.

• Flood Control and Disaster Relief – Emergency pumping of flooded basements, streets, and properties.

• Agriculture and Irrigation – Draining canals, ponds, and irrigation ditches.

ST41230 vs. ST41460 – Which One Should You Choose?

Here’s a direct comparison between the two models to help with selection:

• Choose the ST41230 if you need a mid-range solution for construction and municipal projects.

• Choose the ST41460 if you need higher flow and lift capacity for large-scale projects or deeper dewatering.

Maintenance Tips for Long Life

To maximize the service life of your Multiquip ST41230 or ST41460 Pump, follow these maintenance practices:

1. Inspect Power Cord – Ensure no cuts, frays, or exposed wiring.

2. Flush Pump After Use – Rinse with clean water to remove sediment and debris.

3. Check Impeller and Seals – Inspect regularly and replace if worn.

4. Avoid Dry Running – Always ensure sufficient water before operation.

5. Store Properly – Keep in a dry, cool location when not in use.

6. Monitor Thermal Protection – Ensure safety features are functioning correctly.

Why Professionals Choose the ST41230 / ST41460

Contractors, municipalities, and industrial operators trust the Multiquip ST41230 and ST41460 Submersible Centrifugal Pumps because they:

• Deliver high-volume pumping performance.

• Handle solids up to 1.4 inches for reliable operation in dirty water.

• Are built with cast iron and stainless steel for long service life.

• Provide thermal protection and sealed safety features for reliability.

• Offer flexibility across construction, municipal, and emergency applications.

Conclusion

The Multiquip ST41230 / ST41460 Submersible Centrifugal Pumps are among the most reliable and powerful solutions for professional dewatering. With flow rates up to 366 GPM, head lifts up to 72 feet, and the ability to handle solids up to 1.4 inches, they provide unmatched efficiency and durability in their class.

From construction sites and municipal utility projects to flood control and industrial facilities, these pumps are built to handle demanding conditions with consistent performance. For contractors and professionals seeking a high-capacity, long-lasting, and safe submersible pump, the Multiquip ST41230 and ST41460 models are top-tier investments.