Marine Dredging Flexible Hose High Strength Anti Corrosion Durable
Description
The slurry suction hose is a critical tool in coastal land
reclamation projects, designed to transport sand, silt, and dredged
materials from dredgers or excavators to reclamation sites, levees,
or shoreline reinforcement areas. These hoses must withstand
abrasive materials, high suction pressures, long pumping distances,
and harsh marine environments while maintaining flexibility,
structural integrity, and long-term operational reliability.
In coastal projects, conventional hoses often fail due to vacuum
collapse, excessive abrasion, or damage from external mechanical
forces, resulting in project delays and increased operational
costs. Hongruntong Marine slurry suction hoses are engineered to
meet these challenges, offering superior wear resistance, vacuum
stability, and flexible handling for long-term performance.
Case Study: Gulf Coast Coastal Reclamation Project
A large-scale coastal reclamation project required moving sand and
sediment from dredgers operating offshore to the shoreline over a
2-kilometer distance. Initial hoses suffered from frequent liner
wear and external abrasion due to exposure to tidal motion, UV, and
rough handling.
Hongruntong supplied 600 mm ID slurry suction hoses with a thick
abrasion-resistant liner, dual steel wire helix reinforcement,
multi-layer synthetic textile plies, and robust external covers.
Buoyancy collars were added to keep hoses afloat in shallow waters.
Over 1,500 operational hours, the hoses performed reliably, with
minimal wear, no vacuum collapse, and reduced downtime. This
resulted in significant cost savings and uninterrupted reclamation
operations.
Specifications
Construction |
Inner Liner | Natural rubber in various thicknesses and compounds |
Reinforcement | Nylon cord fabric with spring steel wire helix |
Outer Cover | Black abrasion and UV-resistant natural rubber |
Specifications |
Hose Size | 50~1500 |
Hose Length | Up to 12m |
Pressure Rating | 5-40bar |
Temperature Rating | -40°C to +80°C |
Safety Factor | 4:1 |
Bend Radius | 8 to 10 times diameter (Standard) |
End Fittings | Fixed flanges, swivel flanges, plain cut, cuffed, swollen, custom
fittings |
Flange Types | D, E, F, ANSI 150, ANSI 300, Custom |
Materials | Stainless steel, Hot-dipped galvanised, Carbon steel, Custom paint |
Inner Diameter | Working Pressure | Burst Pressure | Length | Wall Thickness |
| mm | (Mpa) | (Mpa) | (m) | (mm) |
| 300 | 0.4-1.2 | 3.6 | 1-3 | 34-37 |
| 414 | 0.4-1.2 | 3.6 | 1-3 | 35-37 |
| 560 | 0.4-1.2 | 3.6 | 2-3 | 40-45 |
| 600 | 0.4-1.2 | 3.6 | 2-3 | 40-45 |
| 700 | 0.8-1.5 | 4.5 | 2-3 | 40-45 |
| 800 | 1.2-2.5 | 5.5 | 2-3 | 50-52 |
| 900 | 1.5-2.5 | 7.5 | 2-3 | 55-58 |
| 1000 | 2.0-2.5 | 7.5 | 3-5 | 75-78 |
Key Features
High Performance Abrasion-Resistant Liner
The inner liner is composed of a proprietary rubber compound
designed to resist abrasion from sand, silt, and other dredged
materials. Its substantial thickness ensures uniform wear, extended
service life, and reduced maintenance frequency. The compound is
specifically formulated to endure the abrasive and high-flow
conditions of coastal environments.
Multi Layer Reinforcement for Vacuum and Structural Strength
The hose features dual steel wire helix reinforcement combined with
synthetic textile plies. The steel helix provides vacuum
resistance, while textile layers distribute tensile and bending
stresses. This robust construction ensures hoses retain shape and
integrity under continuous pumping, tidal forces, and mechanical
handling.
Durable External Cover for Marine Exposure
The outer cover is resistant to abrasion, UV radiation, ozone,
saltwater, and mechanical impact. For coastal reclamation, hoses
are exposed to dragging on seabeds, contact with dredger equipment,
and sunlight. Optional protective overlays or scuff strips enhance
durability in high-wear zones, ensuring reliable long-term
performance.
Optimized Flexibility and Vacuum Stability
Hongruntong hoses balance flexibility with structural rigidity. The
optimized bend radius and wall thickness transitions prevent
kinking and maintain vacuum stability under suction. This allows
hoses to be routed around obstacles, over uneven seabeds, and
across varying water depths while maintaining continuous flow.
Applications
Coastal Land Reclamation
Hoses transport dredged sand and silt to build new land areas,
levees, and shoreline extensions. They must endure abrasive
materials, tidal forces, and mechanical stresses while maintaining
structural integrity and vacuum stability.
Shoreline Reinforcement
Coastal projects often require sand and sediment pumping to
reinforce eroded shorelines. Hoses must resist abrasion, UV, and
saltwater exposure, while remaining flexible for positioning along
the shoreline.
Offshore Dredging Operations
Offshore dredging requires hoses to transport materials from
dredgers to reclamation sites or sediment containment areas. Hoses
must withstand tidal motion, abrasion from sand-laden water, and
mechanical handling by vessels. Hongruntong hoses are engineered to
meet these requirements reliably.
Why Choose Hongruntong Marine
Expertise in Marine and Coastal Environments
Hongruntong has extensive experience designing hoses for coastal
reclamation and offshore dredging. We understand the combined
effects of abrasion, tidal motion, UV exposure, and mechanical
handling, and engineer hoses to meet these unique challenges.
Advanced Testing and Quality Assurance
Every hose undergoes rigorous vacuum, burst, abrasion, and fatigue
testing. Hongruntong maintains ISO-certified quality systems,
ensuring consistent performance, traceability, and reliability even
in harsh marine environments.
Custom Engineering Solutions for Coastal Projects
Hoses can be customized for diameter, length, liner compound,
reinforcement, buoyancy, and end fittings. Finite element analysis
and flow modeling optimize hoses for specific marine conditions,
pumping distances, and slurry compositions, ensuring long service
life and efficiency.
Global Support and After-Sales Service
Hongruntong offers installation guidance, predictive wear
monitoring, maintenance support, and rapid spare parts delivery.
Our global network ensures that hoses can be serviced or replaced
quickly, minimizing downtime and project delays.
FAQ
1. What is the expected lifespan of a coastal reclamation hose?
Lifespan depends on abrasion, suction pressure, tidal motion, and
operational conditions. Typically, Hongruntong hoses last
1,500–2,500 operational hours in coastal reclamation projects.
2. Can the hose handle vacuum pressures without collapsing?
Yes. Dual steel helix reinforcement and textile plies provide
stability under high suction. Hoses are tested with safety margins
above design pressure.
3. Are hoses suitable for floating or shallow-water applications?
Yes. Optional buoyancy collars or floating shells keep hoses afloat
and prevent seabed dragging, ensuring consistent slurry transport.
4. What end fittings are available for coastal hoses?
Standard flanges (ANSI, DIN, JIS), cam-locks, quick-connect
couplings, and swivel joints are available. Fittings are designed
to minimize stress and maintain smooth flow.
5. What maintenance practices are recommended for coastal hoses?
Inspect liner thickness, flush after use, avoid sharp bends, secure
hoses against external abrasion, monitor for leaks or deformation,
and maintain spare hose segments for quick replacement.
