QP402H Gasoline-Powered Centrifugal Pump Suited for Water Transfer Between Holding Tanks

Efficient water transfer is crucial in industries such as construction, agriculture, municipal services, and industrial operations. When large volumes of water need to be moved quickly and reliably, contractors and facility managers require a pump that offers both high capacity and dependable performance.

The QP402H Gasoline-Powered Centrifugal Pump is engineered to meet these exact demands. With its Honda GX390 engine, cast iron construction, and self-priming design, this pump is ideally suited for water transfer between holding tanks, construction dewatering, irrigation, and flood control.

What Is the QP402H Gasoline-Powered Centrifugal Pump?

The QP402H is a 4-inch centrifugal pump designed for professionals who need to move large amounts of water with speed and efficiency. Unlike trash pumps, which are designed for debris-filled water, the QP402H is optimized for clean or lightly sedimented water transfer.

Its Honda GX390 gasoline engine provides power and reliability, while the centrifugal design ensures a steady and consistent flow. This makes the pump particularly effective for transferring water between storage tanks, irrigation reservoirs, and construction sites.

Key Features of the QP402H

The QP402H Gasoline-Powered Centrifugal Pump is built with features that maximize performance, reliability, and operator efficiency:

1. Honda GX390 Engine

• 11.7 horsepower for powerful operation.

• Trusted globally for reliability, easy starting, and fuel efficiency.

• Low-oil shutdown protection safeguards the engine.

2. High Flow Rate

• Moves up to 555 gallons per minute (GPM).

• Ideal for high-volume water transfer between holding tanks or job sites.

3. Durable Cast Iron Construction

• Cast iron impeller and volute designed for long life.

• Withstands continuous use in demanding conditions.

4. Self-Priming Design

• After initial priming, the QP402H self-primes for consistent operation.

• Reduces downtime in the field.

5. Heavy-Duty Frame

• Rugged steel roll cage protects the pump and engine.

• Anti-vibration mounts reduce stress during operation.

6. Compact and Portable

• Weighs approximately 150 lbs.

• Built-in lifting points make it easy to transport between job sites or storage tanks.

Technical Specifications of the QP402H

Here are the essential specifications for the QP402H Centrifugal Pump:

• Model: QP402H

• Pump Type: Centrifugal water transfer pump

• Engine: Honda GX390 gasoline engine

• Power Output: ~11.7 HP

• Fuel Tank Capacity: 1.6 gallons (6.1 liters)

• Max Flow Rate: ~555 GPM (2,101 L/min)

• Max Head Lift: ~95 feet (29 meters)

• Suction Inlet: 4 inches (NPT)

• Discharge Outlet: 4 inches (NPT)

• Solids Handling: Limited (not a trash pump)

• Pump Material: Cast iron volute and impeller

• Frame: Steel roll cage with lifting points

• Weight: ~150 lbs (68 kg)

• Best Application: Water transfer between holding tanks, reservoirs, and controlled environments

Why the QP402H Is Suited for Water Transfer Between Holding Tanks

The QP402H stands out as a high-performance water transfer pump for holding tank applications because of:

1. High-Volume Flow

At 555 GPM, it can rapidly transfer thousands of gallons of water between storage tanks in a short period of time.

2. Steady Pressure

Its centrifugal design ensures a consistent, controlled water flow, reducing splashing and turbulence in holding tanks.

3. Durability for Continuous Use

The cast iron impeller and volute are built for long duty cycles, making it reliable for daily or frequent tank-to-tank transfers.

4. Portable Solution

Weighing only 150 lbs, the pump can be easily relocated between multiple tank systems without requiring heavy equipment.

5. Reliable Honda Power

The GX390 engine ensures uninterrupted performance even during extended pumping operations.

Benefits of Using the QP402H

The QP402H Centrifugal Pump provides multiple benefits for professionals across industries:

• Efficiency – Moves large amounts of water quickly.

• Cost Savings – Reliable engine and pump construction reduce downtime and repairs.

• Versatility – Works for holding tank transfers, irrigation, and dewatering.

• Operator-Friendly – Compact size and easy controls make it simple to use.

• Durability – Built to last in rugged job site conditions.

Applications of the QP402H

While the QP402H is perfectly suited for water transfer between holding tanks, it also excels in many other applications:

• Construction Dewatering – Draining trenches, foundations, and excavation pits.

• Agriculture – Supplying water to irrigation systems from reservoirs or tanks.

• Municipal Water Systems – Moving water between storage tanks or treatment facilities.

• Flood Control – Quickly removing excess water from low-lying areas.

• Industrial Operations – General water transfer and backup supply management.

QP402H vs. Other Multiquip Pumps

Here’s how the QP402H compares with other Multiquip pumps:

The QP402H is the best choice for clean water holding tank transfer due to its flow rate and controlled pumping action.

Maintenance Tips for the QP402H

To maximize the life and performance of your QP402H Gasoline-Powered Centrifugal Pump, follow these maintenance guidelines:

1. Check Engine Oil Daily – Maintain proper lubrication levels.

2. Inspect Impeller and Volute – Look for wear or damage after frequent use.

3. Use Clean Fuel – Prevent engine carburetor issues by keeping fuel fresh.

4. Flush After Use – Run clean water through the pump after every job.

5. Inspect Seals and Gaskets – Ensure no leaks compromise performance.

6. Store Properly – Keep in a dry location and protect from weather when not in use.

Why Professionals Choose the QP402H

Contractors, farmers, and municipalities trust the QP402H Centrifugal Pump because it:

• Transfers 555 GPM for fast holding tank water transfers.

• Offers 95 ft of head lift for multi-level tank systems.

• Runs on a dependable Honda GX390 engine.

• Provides durable cast iron components for long-term use.

• Is portable and compact enough for easy relocation.

For tank-to-tank water movement, the QP402H strikes the perfect balance between power, portability, and reliability.

Conclusion

The QP402H Gasoline-Powered Centrifugal Pump is a professional-grade water transfer solution designed for efficiency and reliability. With its Honda GX390 engine, 555 GPM flow rate, 95-foot head lift, and rugged cast iron construction, it is ideally suited for water transfer between holding tanks, irrigation systems, and municipal projects.

Whether you’re a contractor needing to dewater job sites, a farmer managing irrigation storage, or a municipality overseeing water systems, the QP402H is one of the most versatile and dependable centrifugal pumps available today.