Key Features at a Glance

1. Ultra Abrasion-Resistant Rubber Lining Compound
   Specialized NR/BR/SBR synthetic rubber compound laboratory-tested to deliver over 4x the wear resistance of traditional steel pipes. Engineered for continuous contact with highly abrasive slurries containing sand, gravel, mud, and rock particles in dredging and mining applications.
2. Reinforced Multi-Layer Skeleton Structure
   Multiple layers of high-tensile textile cord reinforcement combined with a helical steel wire framework provide superior hoop strength and crush resistance. This robust skeleton design prevents kinking, twisting, and collapsing even under full vacuum suction conditions during dredging pump operation.
3. Marine Grade UV & Seawater Resistant Outer Cover
   Outer cover is specially formulated with weather-resistant synthetic rubber compound engineered to resist prolonged UV radiation exposure, ozone attack, and corrosive seawater immersion — ensuring long service life in open-sea and coastal dredging environments.
4. Wide Operating Temperature Range (-20°C to +80°C)
   Maintains full operational flexibility across extreme temperature conditions from freezing arctic waters to tropical climates. The elastomeric compounds retain their mechanical properties without hardening or cracking throughout the entire temperature envelope.
5. High Pressure Capability (Up to 30 Bar / Customizable)
   Designed for demanding high-pressure dredging discharge applications with working pressure ratings from 5 Bar up to 30 Bar depending on hose diameter. Safety factor options of 3.1 or 4:1 ensure reliable operation under surge pressure conditions common in slurry pumping systems.
6. Large Diameter Range (150mm – 1200mm / 6″ – 48″)
   Available in a comprehensive size range from DN150 (6-inch) up to DN1200 (48-inch) inner diameter to match any dredging vessel pump capacity. Standard lengths from 1 to 3 meters with custom cut-to-length options available upon request.
7. Excellent Flexibility & Bend Radius Control
   Engineered construction allows for tight bending around ship deck equipment and floating pipeline configurations while maintaining structural integrity under continuous flexing motion caused by wave action and vessel movement during offshore operations.
8. Dual Function: Discharge & Suction Capability
   The reinforced steel wire skeleton enables this hose to serve both as a discharge line (positive pressure) and suction line (vacuum) within the same dredging system — eliminating the need for separate hose types on board dredging vessels and reducing inventory requirements.

Key Technical Advantages

• Superior Abrasion Resistance: The specialized NR/BR/SBR lining compound has been rigorously tested in laboratory conditions and proven to offer over four times the wear resistance compared to conventional steel pipes when transporting abrasive slurries. This dramatically extends service intervals and reduces total cost of ownership in high-wear dredging applications.
• Reinforced Skeleton Anti-Collapse Design: Multiple layers of high-tensile synthetic fabrics are combined with a precision-engineered helical steel wire framework that actively resists external crushing forces and internal vacuum collapse pressures. The skeleton maintains round cross-section profile even under maximum suction loads.
• Marine Grade Environmental Protection: The outer cover is compounded and engineered specifically for long-term exposure to harsh marine conditions including intense UV solar radiation, atmospheric ozone degradation, saltwater spray immersion, and constant wet/dry cycling experienced in offshore dredging fleet operations.
• Broad Temperature Adaptability: Maintains complete operational flexibility, pressure integrity, and fatigue resistance across a wide ambient temperature range from -20°C (sub-zero arctic / winter conditions) through +80°C (tropical / desert peak heat), ensuring year-round global deployment capability.

Technical Specifications

Dredging Hose Size Chart (Full Data Sheet)

* Install length based on DEVEL factory standards. Custom lengths and alternative specifications available upon request.

Installation Guidelines for Dredge Hose Systems

1. Flange Connection Preparation: Ensure all mating flange faces are clean, parallel, and free from burrs or debris before assembly. Use appropriate gaskets rated for the working pressure and temperature conditions of your dredging application.
2. Minimum Bend Radius Compliance: Never bend the hose below its minimum specified bend radius during installation or operation. Excessive bending causes internal reinforcement stress concentration, accelerates lining wear, and may lead to premature failure under dynamic loading.
3. Pre-Operation Pressure Testing: Conduct a hydrostatic test at 1.5 times the rated working pressure before commissioning. Inspect all connection points, the outer cover surface, and end fittings for any signs of leakage or abnormal deformation under test pressure.

Typical Applications

Product Tags

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