How to select the right hydraulic hose

How do I select the right hose?

Proper product selection and hose assembly is critical to the safe, efficient running of machinery and processes. The following factors of usage and application should be taken into consideration when selecting a hydraulic hose:

• Application: The specific application for which the hose will be used should be considered. Different applications may require different hose types, such as food-grade hoses for use in the food and beverage industry.
• Fluid/Gas types – Primarily, the fluids or gases which will flow through the hose, and the concentration of these, must be known and understood to determine the strength required of the inner tube. For example, aggressive solvents require highly resistant inner tubes.
• Temperature - Next the operating temperature of the fluids or gases must be known. This ensures high temperatures will not degrade the inner tube, or low temperatures will not impede its functionality as a conduit. Additionally, the external temperatures surrounding the hose must be known, ensuring the hose can function adequately within extreme temperatures or tolerate any temperature variations.
• Presure – The pressures at which fluids or gases will flow through the hose will determine the strength required of all layers of the hose’s assembly, including the potential for pressure spikes. These operating conditions will dictate both the internal and external resistance required.
• Size - The size of your hose needs to account for adequate diameter and appropriate length. Internal diameter will be dictated by internal pressures while external diameter is dictated by the level of protection required or space available as well as the bend radius required. Overall length will depend on the distance between components and the flexibility required of the hose during use.
• Bend Radius: The hose’s bend radius is the minimum radius it can be bent without damaging it. If the hose will need to be bent, make sure it can handle the required bend radius.
• Ends & Couplings – Thorough hose selection includes correct hose assembly to ends and couplings, ensuring durability and flexibility. The correct mating thread for ends will prevent leaks when sealed. These are essential in reducing the risk of potentially hazardous bursts or disconnections.
• Availability & Costing – The final hydraulic hose must suit your budget, operational capabilities and maintenance schedule to ensure efficiency and sustainability of the process. For example, if appropriate or necessary can elements of a hose’s application be adapted to accommodate a standard hose assembly that is more readily available or cost-effective.

By considering these factors, you can select the right hose for your application. It is also important to consult with a reputable hose supplier to ensure you are getting the right hose for your specific needs.