Darley HEF11H Floating Water Pump (24000 GPH, 11 HP, Honda GXV390)

Description

Darley HEF11H Floating Water Pump (24,000 GPH, 11 HP, Honda GXV390)

The W.S. Darley & Co. HEF11H Dolphin™ Floating Water Pump is a professional-grade, high-volume floating pump engineered for firefighting, water transfer, irrigation, emergency response, and rural water supply operations. Powered by a reliable 11 HP Honda GXV390 OHV gasoline engine, this self-priming pump delivers up to 24,000 gallons per hour (400 GPM) while operating directly on the water surface, eliminating the need for long suction hoses and complicated priming procedures.

Designed for use in lakes, ponds, rivers, reservoirs, and other remote water sources, the HEF11H features a rugged floating platform, anodized aluminum pump casing, bronze impeller, and corrosion-resistant construction for dependable operation in harsh environments. Its lightweight design allows easy transport by two operators, making it ideal for wildland firefighting, agricultural irrigation, flood response, and emergency water supply applications. The Dolphin™ series is widely trusted by fire departments, forestry crews, emergency management agencies, and industrial operators who require reliable high-volume water movement from hard-to-access water sources.

Key Features

• High-volume output up to 24,000 GPH (400 GPM)
• Reliable 11 HP Honda GXV390 OHV engine
• Self-priming floating pump design
• Operates directly on lakes, ponds, rivers, and reservoirs
• Heavy-duty anodized aluminum pump casing
• Durable bronze impeller construction
• 4-inch screened suction inlet
• 2.5-inch NH discharge outlet
• Lightweight portable design for two-person transport
• Corrosion-resistant components for long service life
• Ideal for firefighting and emergency water supply
• Fast deployment in remote locations

Applications

• Wildland and forestry firefighting
• Rural fire protection
• Emergency water supply
• Agricultural irrigation
• Pond and lake water transfer
• Flood control and dewatering
• Reservoir management
• Construction site water transfer
• Disaster response operations
• Industrial water movement

Darley HEF11H Floating Water Pump (24000 GPH, 11 HP, Honda GXV390): Buying Considerations

The Darley HEF11H Dolphin™ Floating Water Pump delivers up to 24,000 GPH (400 GPM) and is powered by an 11 HP Honda GXV390 engine. Designed for firefighting, irrigation, flood control, and emergency water transfer, this self-priming floating pump provides reliable high-volume performance from lakes, ponds, rivers, and remote water sources.

Before ordering the Darley HEF11H Floating Water Pump (24000 GPH, 11 HP, Honda GXV390) from Darley, review the points below against your actual site conditions and workload. Published specifications describe the equipment under test conditions, and real-world performance depends on how closely your application matches those conditions. Buyers in the United States, Canada, and Asia should also confirm local voltage and frequency requirements, applicable safety or emissions standards, and freight or import logistics for the destination before finalizing an order.

What to Check Before You Buy

• Define required flow and total dynamic head at the discharge point – engine-driven pumps are commonly undersized when only flow rate is considered.
• Check suction lift, priming method, and maximum solids size the pump can handle without clogging.
• Verify fuel type and runtime requirements match the application, especially for extended dewatering or irrigation jobs.
• Confirm hose/fitting size matches the pump's rated port size to avoid unnecessary friction loss.

How much reserve capacity should an engine-driven pump have over the calculated requirement?

A reasonable margin accounts for pipe friction losses, fitting losses, and any future demand growth – undersizing based purely on a theoretical flow calculation without real-world losses is a common reason pumps underperform once installed.

For sizing help across the full Engine Driven Pumps category, compare specifications side by side before committing to a specific model, and confirm current pricing, availability, and freight details for your location. Keep the supplier data sheet and any acceptance criteria on record for future maintenance and replacement decisions.