Most hydraulic hoses consist of three main parts. They have an inner tube to transport liquid. Next comes the reinforcement layer, and then the protective outer layer.
The inner tube is flexible and compatible with the fluid it will carry. Common compounds are a combination of synthetic rubber, thermoplastic and PTFE (polytetrafluoroethylene).
The reinforcement layer has multiple sheaths. The sheath includes spirally wound wire, braided wire or textile yarn. Depending on its intended use, the outer layer usually has abrasion resistance, oil resistance or weather resistance.
Types of Hydraulic Hose
In addition to reinforced hoses, hydraulic hoses can also be coiled or corrugated. There are a variety of materials for reinforced hoses. Some of these materials include wire spirals, braids, and wire braids.
The coiled tube has elasticity and flexibility. This makes the coiled hose stretchable and easy to store.
Corrugated hoses have folds (corrugations) or spiral folds to increase flexibility. Has greater compression and extension capabilities.
SAE and EN Standards
Manufacturers in the Americans, Australia, and Europe adhere to two sets of quality standards. One is the Society of Automotive Engineers (SAE) J517, and the other is the European Norm (EN) Standards