Hydraulic Hose Assemblies 

Hydraulic hoses are more complicated than it seems. Many factors go into the design, manufacture, and testing of quality hydraulic hoses. The purpose of a hydraulic hose is to allow fluid to flow from one component to another - in this case hydraulic fluid. The hose is the conduit that allows fluid to flow freely and is an essential part of keeping hydraulic systems moving.

Quick Facts About Hydraulic Hoses

• Hydraulic Hoses and Assemblies are often constructed from multiple materials, but the primary materials used are the most important. Rubber hydraulic hoses are the most common, but materials will vary based on application requirements.
• Rubber or elastomeric hydraulic hoses range from low to high pressure and are often chosen for their excellent flexibility.
• Fluoropolymer hoses offer superior corrosion and chemical resistance, as well as high-temperature performance.
• Thermoplastic hydraulic hoses offer tight minimal bend radii and excellent kink resistance.
• Metal hoses can handle high-temperature fluid materials and can often handle very high pressures. They can be rigid or flexible.
• Modern hydraulic hoses typically consist of at least three parts: an inner tube that carries the fluid, a reinforcement layer, and an outer protective layer. Cloak.
• The bladder must have some flexibility and be compatible with the type of liquid being transported.
• The reinforcement layer consists of one or more sheaths of braided wire mesh or spirally wound wire. The wire braid has a criss-cross pattern around the circumference of the hydraulic hose for added flexibility. Rather than crossing the wires, the coiled wires stay parallel as they wrap around the hose.
• The outer layer is typically weather, oil or abrasion resistant depending on the type of environment in which it is the hose is located in. designed for. This layer is commonly known as the top sheet type.  
• Hose vs. Pipe - Pipe is often best placed near a heat source, and hose is chosen for high-vibration applications or for connections with moving parts. The hose is more flexible, available in longer lengths, quicker to manufacture, easier to fit in tight spaces, less prone to corrosion and a better thermal insulator.
• How long does a hydraulic hose last? There are so many variables that comes into play that it is impossible to accurately predict hose assembly life. Key factors to consider are size, temperature, application, medium and pressure.
• A hose assembly consists of a hose and hose fittings. Each of these components is independently rated for working pressure. The maximum working pressure for assembly is the lowest maximum working pressure between the fittings and the hose.

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