Construction:
Inner layer: Oil-resistant NBR (Nitrile-Butadiene Rubber); Smooth and fuel-resistant
Reinforcement: One embedded helix steel wire + Multiple layers of high-strength polyester textile cord
Cover: Black and smooth synthetic rubber + Spiral orange band; Highly resistant to weather, abrasion, sunlight, and ocean water
Floating material: Closed-cell foam
Typical reducing sizes: 12"→16" / 16"→20" / 20"→24"
The reducer hose connects the tail hose and the mainline hose. Usually, the inner diameter of the tail hose is smaller than the mainline floating hose. The outer diameter of the reducer hose looks the same, and its inner diameter changes at the end which is larger.
Minimum burst pressure: 5 × Rated Working Pressure
Fittings: ASME B 16.5 (Class 150, 300, 400, 600, 900, 1500, and 2500) or other standards flanges according to customer's request will be welded on the raised face, flat face, or other required face of the hose neck. Flange material options include carbon steel and stainless steel. There are several welding and sealing methods for you to choose.
Flange standard: ANSI, GB, JIS, or DIN.
Technical Analysis
Import the ABAQUS static analysis results into the fatigue analysis software fe-safe, select the fatigue analysis theory, set the material parameters of each structural layer, load the above load spectrum, and we can get the fatigue analysis results.
We use finite element analysis software ABAQUS to:
- Create a detailed local model of the hose to calculate hose strength, such as cord tension, rebar stress, rubber strain
- Build a detailed hose model and calculate the bending, tensile and torsional stiffness of the hose
- Calculate cord tension, rebar stress, and rubber strain under certain loads
By using the hydrodynamic software ORCAFLEX, we calculate floating hose data, such as bending moment, torque, and tension, and compare the results with design allowables. Environmental loads such as wind, wave and currents, as well as the excitation oscillations of FPSOs, tankers or moored buoys, are considered.
We use finite element analysis software ABAQUS to:
By using the hydrodynamic software ORCAFLEX, we calculate floating hose data, such as bending moment, torque, and tension, and compare the results with design allowables. Environmental loads such as wind, wave and currents, as well as the excitation oscillations of FPSOs, tankers or moored buoys, are considered.
