HOW TO SELECT RUBBER DREDGING HOSE

In dredging projects, floating hoses are critical components connecting dredging ships, directly affecting construction, safety, and cost. Incorrect selection can lead to hose rupture, reduced flow, or frequent replacements, which can delay the project and increase project risks. The following key factors to consider before choosing a dredging floating hose.

Understand the characteristics of the conveying medium Different materials can significantly vary in the degree on the hose: Ordinary floating hoses can transport fresh water, seawater, and mixtures of silt, clay, and sand; For working conditions such as coral reefs and weathered rocks, the material particles are often angular and of larger hardness, and you can choose a hose with high abrasion resistance, as a reinforced floating hose with wear-resistant steel rings embedded.

Determine the size of the hose: diameter and length The size of the hose directly affects the efficiency and system match: Inner diameter: The common range is 400mm–1200mm, which needs to match the pump and pipeline system to flow loss or pressure abnormality Length: The common range is 6m~11.8m, which needs to be reasonably selected according to the spatial layout flexibility requirements of the operation site. Too long or too short will affect the flexibility of operation .

Although large diameter hoses can improve flow, flexibility and weight also need to be comprehensively Working pressure and burst pressure . The dredging hose must be able to withstand the maximum working pressure of the system and have sufficient safety margin: working pressure: 1.0-4.0MPa (depending on specific working conditions) . The burst pressure should be at least 3 times the working pressure to ensure Consideration should be given to pressure fluctuations to avoid hose damage from instantaneous high pressure Flexibility and minimum bending radius Floating hoses need to adapt to, tides, and the movement of dredging ships, so flexibility is essential: A too small bending radius can cause the hose to twist or burst , A hose that too soft may collapse under high pressure, affecting the delivery efficiency Buoyancy performance.

The floating layer uses closed-cell PE foam material and should have the following characteristics: High buoyancy, it can remain afloat even under load Low water absorption to avoid sinking due to water absorption Material corrosion resistance and environmental adaptability marine environment poses high demands on the material of the hose: Flanges and reinforcement need to be corrosion-resistant treatment The hose material should be suitable for the temperature and chemical of the project location Certification and test standards

Our dredging hoses comply with international standard ISO28017-2018 and Chinese of Chemical Industry standard HG/T2490-2011 "Specification for Rubber Hose and Hose Assemblies Reinforced with Wire or for Dredging Projects", and are designed and manufactured under the quality system of ISO 9001. Every hose we produce undergoes strict quality control to ensure high quality Our products can also meet customer's customized requirements.