Choosing the right industrial hose is about much more than finding a hose with the correct diameter. The hose needs to be compatible with the material being transferred, suitable for the operating pressure and temperature, and capable of withstanding the physical conditions of the application. Choosing incorrectly can result in premature hose failure, leaks, contamination, production downtime and, in higher-risk environments, significant safety consequences.
With so many hose materials, constructions, pressure ratings and coupling options available, how do you know which hose is right for your application? This industrial hose selection guide explains the key factors to consider before specifying a hose assembly.
1.Start with the application
The first question to ask is simple: what will the hose be used for? Industrial hoses are designed for very different applications. A hose suitable for transferring water may be completely unsuitable for oil, chemicals, steam or abrasive materials.
Common industrial hose applications include:
- Air and compressed air
- Water and hot water
- Oil and fuel
- Chemicals
- Steam
- Food and beverage products
- Abrasive materials
- Slurries
- Gas
- Vacuum and suction
- Material handling
- Tanker loading and unloading
- Understanding the application helps narrow down the appropriate hose construction and lining material.
At Integraflex, hose selection covers a wide range of industrial applications, including chemical, oil and fuel, steam, air, water, material handling and specialist industrial transfer requirements.
2.What material is being transferred?
One of the most important considerations when choosing an industrial hose is chemical compatibility.
The hose's inner tube, or liner, must be compatible with the fluid or material passing through it. Chemical compatibility isn't simply about whether a hose can technically carry a particular substance. Concentration, temperature, pressure and exposure time can all affect performance.
For example, a hose used for hydrocarbon transfer will require different characteristics from one used for aggressive chemicals.
Consider:
- The exact fluid or material
- Chemical concentration
- Temperature
- Pressure
- Whether the material is abrasive
- Whether the material is food-grade or hygienic
- Whether contamination is a concern
Never assume that a general-purpose hose is suitable simply because it fits the equipment. If you're unsure about compatibility, speak to a hose specialist and provide the exact material being transferred and the operating conditions.
3. Check the working pressure
Every industrial hose has a maximum working pressure. This needs to be considered alongside the pressure the hose will actually experience during operation.
You should establish:
- Normal operating pressure
- Maximum operating pressure
- Pressure fluctuations
- Pressure surges
- Vacuum conditions, where applicable
- Any potential pressure spikes during starting or stopping.
The hose assembly, including the hose, couplings and attachment method, needs to be suitable for the application as a complete system. It is not sufficient to select a hose based solely on its stated pressure rating while overlooking the rating or suitability of the fittings. For higher-pressure applications, the correct hose construction and assembly method are particularly important.
4. Consider operating temperature
Temperature can significantly affect hose performance. A hose that performs well at ambient temperature may not be suitable for hot fluids, steam or applications exposed to significant external heat.
When specifying a hose, establish both:
Internal temperature:
The temperature of the material passing through the hose.
External temperature: The temperature of the surrounding environment.
Also consider whether the temperature changes significantly during operation.
For example, steam applications require hoses specifically designed to withstand elevated temperatures and pressures. Integraflex supplies specialist steam hoses used across oil and gas, petrochemical and other demanding industrial environments.
5. Determine whether the hose needs to handle suction or vacuum
Not every hose is designed for suction.
If the hose will be used on the suction side of a pump, for tank emptying or another vacuum application, the hose needs an appropriate construction to resist collapse. This is particularly important for suction and discharge applications where the hose may experience changing pressure conditions.
A standard pressure hose may not be suitable for vacuum service even if its working pressure appears adequate.
6. Consider abrasion and external conditions
The inside of the hose isn't the only area exposed to demanding conditions.
Think about what happens to the hose during normal operation.
Will it:
- Drag across concrete?
- Come into contact with sharp edges?
- Be exposed to chemicals?
- Be repeatedly flexed?
- Be exposed to UV?
- Operate outdoors?
- Be exposed to oil or grease?
- Experience mechanical vibration?
- Be exposed to hot surfaces?
For applications involving abrasive materials, such as aggregates or other bulk materials, an abrasion-resistant hose construction may significantly improve service life.
External protection may also be appropriate where the hose is exposed to mechanical damage.
7. Get the hose bore and length right
The internal diameter of the hose affects flow rate and pressure loss.
Choosing a hose that is too small can restrict flow and increase pressure loss. Choosing one that is unnecessarily large can increase cost, weight and handling difficulties. Length also matters. A hose should be long enough to accommodate movement without being unnecessarily long.
Excessive length can increase pressure loss, create additional weight and make the hose harder to manage. When ordering a hose assembly, accurate measurements are important. Integraflex's hose assembly service allows customers to specify the hose type, bore, length and end fittings before the assembly is manufactured.
8. Choose the correct fittings and coupling system
The hose is only one part of the assembly. The correct fittings need to be selected to match:
- The hose
- The application
- Pressure requirements
- Connection type
- Temperature
- Fluid compatibility
- Required safety features
Different applications may require BSP fittings, flanges, cam couplings, tanker couplings, Bauer-type couplings or specialist connections. The method used to secure the fitting to the hose is also important. Depending on the hose and application, this may involve crimping, swaging, clamping or another approved assembly method.
9. Consider flexibility and movement
How much movement will the hose experience? A hose installed on fixed equipment may have very different requirements from one connected to mobile machinery.
Consider:
- Minimum bend radius
- Frequency of movement
- Torsion
- Vibration
- Repeated flexing
- Whether the hose is dragged or suspended
Importantly, hoses should not normally be twisted to achieve an installation. Correct routing and support can help prevent unnecessary stress on the assembly.
10. Does the application require testing and traceability?
For safety-critical or highly regulated applications, specifying the hose is only part of the process. You may also need a way to demonstrate:
- What hose is installed
- Where it is installed
- When it was manufactured
- When it was tested
- What pressure it was tested to
- When it is due for re-test
- Whether it has passed inspection
- Which certificate relates to the hose
Integraflex provides hose identification and asset-management solutions using identification tags, barcodes and RFID technology, alongside digital hose registers and test certificates. This can be particularly valuable when a site has hundreds or thousands of hose assemblies.
A simple industrial hose selection checklist Before ordering, make sure you can answer these questions:
- What material is being transferred?
- What is the concentration, if it is a chemical?
- What is the normal and maximum working pressure?
- Is vacuum involved?
- What are the internal and external temperatures?
- What hose bore is required?
- What length is required?
- What is the minimum bend radius?
- Will the hose be subject to abrasion or external damage?
- How frequently will it move or flex?
- What fittings or couplings are required?
- Does the assembly need to be tested?
- Does the hose need identification or traceability?
- Are there specific industry or site standards that must be met?
Get the right hose for your application There isn't one universal industrial hose that is suitable for every application. The right choice depends on the combination of fluid, pressure, temperature, movement, environment and connection requirements.
Getting the specification right at the beginning can help improve reliability, reduce unplanned downtime and support safer hose management throughout the assembly's working life. If you're unsure which industrial hose is suitable, Integraflex can help assess the application and recommend an appropriate hose and coupling solution.