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 is the same, and its inner diameter changes at the end which is larger.
→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"
→Minimum burst pressure
Primary carcass: 5 × Rated Working Pressure
Secondary carcass: 2 × 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.
Design, production, tests and operations are in strict accordance with OCIMF GMPHOM 2009 and customer's requirements.Test Report & Technical Analysis
When designing marine hoses, we do dynamic analysis and hydrodynamic calculations with the help of OrcaFlex. Dynamic responses of marine hoses are simulated under environmental loadings like wind, currents, and waves. For hoses are applicated in mooring systems like SPM, we analyze tension of mooring lines in different sea states and mooring point’s motion and displacement under various dynamic loads.
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
