Hydraulic hoses are used to transport fluids under high pressure in hydraulic systems. They are typically made of a synthetic rubber inner tube, one or two braided or spiral layers of high tensile steel wire reinforcement, and a synthetic rubber outer cover. Low-pressure hoses, on the other hand, are designed for applications where the pressure requirements are lower. They are generally made of a single-layer of synthetic rubber or a nylon inner tube with a synthetic rubber outer cover.

Clamps and fittings are used to connect hoses to other components of a hydraulic system such as pumps, cylinders, and valves. They come in various shapes, sizes, and materials such as stainless steel, brass, and plastic. The most common types of fittings are compression fittings, flare fittings, and quick connect fittings.

Proper selection of hoses, clamps, and fittings is crucial for the safety and efficient operation of hydraulic systems. Factors to consider when selecting these components include the operating pressure and temperature, fluid type, environmental conditions, and compatibility with other system components.

Regular maintenance and inspection of hydraulic hoses, clamps, and fittings is also important to ensure that they are functioning properly and to prevent leaks, which can lead to system failure and safety hazards. It is recommended to replace hoses and fittings periodically according to the manufacturer's specifications or if there are signs of wear or damage.