Dragflow DRH400 – Heavy-Duty Performance Beyond Standard 4 Inch Dredge Pump Systems
When searching for a reliable 4 inch dredge pump, contractors often require compact size combined with powerful slurry handling. For larger-scale and more demanding operations, the Dragflow DRH400 offers a superior self-propelled dredging solution designed for high-capacity performance and deep-water applications.
Supplied by Ace Centro Enterprises (ACE), the DRH400 is engineered for deep harbor dredging in marine, mining, and oil & gas industries. It is equipped with the robust Dragflow HY400 hydraulic dredging pump, capable of handling abrasive, high-density slurry mixtures with exceptional efficiency.
Its modular pontoon design ensures operational flexibility at virtually any depth, including environments with low pH slurry compositions.
Versatile Applications Across Industries
ACE provides a full range of electric and hydraulic submersible dredge pumps suitable for:
Harbor and port dredging
Canal and marina cleaning
Sand reclaiming
Mine tailing removal
Quarrying operations
Waste pollution control
Heavy slurry pumping
Oil spill response
Tunneling and bentonite pumping
Sewage pumping
Dam and dike construction
Lake and channel dredging
Through its sales organization in the Arabian Gulf, ACE also supplies self-propelled dredgers with telescopic and ladder pump options to clients in the Middle East and Africa for dredging works at marinas, jetties, ports, and offshore platforms.
Product Specifications – Dragflow HY400 Pump
Advanced Agitator Technology
The HY400 pump is designed with a high-efficiency agitator system that enables the lifting and conveying of medium to high specific weight slurry mixtures such as:
Mud
Slime
Silt
Sand
Gravel
This ensures consistent material transfer even in highly abrasive conditions.
High-Capacity Slurry Performance
Handles slurries up to 1.7 specific gravity
Solids handling capability from 20 mm to 120 mm (5 inches)
Flow rates up to 4000 m³/hr
Pumping distances up to 1500 meters (longer distances achievable using booster pumps)
Dredging depths up to 300 meters, successfully achieved in dam construction projects
Built for Long-Term Reliability
Low Operating Speed
Reduced wear and extended service life due to optimized rotational speed.
Integrated Protection Options
Temperature sensor embedded in the motor
Moisture sensor in the oil chamber
Advanced Seal System
Unique lip seal system with front deflector
Teflon layers resistant to both high and low pH
High-precision machining with grease injection points for extended sealing life
Heavy-Duty Wear Components
All wear parts manufactured in High Chrome Alloy
Pump castings 100% made in Italy using high-quality metallurgy
Electrical Configurations
Available in 50 Hz and 60 Hz electric versions to meet global operational requirements
Why Choose the DRH400?
While a standard 4 inch dredge pump may be suitable for small-scale projects, the Dragflow DRH400 provides:
Greater flow capacity
Extended pumping distance
Deep-water operational capability
Superior abrasion resistance
Stable self-propelled steel cable positioning
For contractors seeking scalable dredging performance with long-term durability, the DRH400 delivers industrial-grade power and reliability.
4 Inch Dredge Pump DETAILED DRH400 SELF-PROPELLED DREDGE WITH STEEL CABLES
