Industrial hoses often do not get the attention they deserve. Most manufacturing facilities have specifications and policies concerning tubing, fittings, and valves on pressure-containing systems, but hose safety continues to be left out.
This trend is alarming because hoses do fail for several different reasons. For example, they can be improperly routed, or the hose type may not correctly match the application. Even with the right setup and material selection, hoses are subject to regular wear over time. Like the tires on your car, your hoses will eventually need attention even if they are treated well—regular maintenance is a must.
It is important that leaks from hoses are taken seriously within your facility. Leaks can put plant personnel in unsafe situations, inflate operating costs, contribute to fugitive emissions, and adversely affect the environment. Luckily, your team can avoid dangerous situations and downtime while improving plant efficiency by following these three recommendations for industrial hose safety.
Many organizations are trying to increase the production value from their machines and processes—resulting in greater demand on industrial hoses. In cases of high demand, make sure your hose specifications for pressure, temperature and chemical compatibility are up to date and inspected regularly.
When specifying a hose, consider several areas to ensure the hose type is properly matched to its intended application. Careful selection in these areas of the hose will determine your total cost of ownership, which provides a greater lifetime value than the initial purchase price.
The core material of your hose is its innermost layer and most important consideration when selecting and maintaining your hose supply. Your core hose material must be chemically compatible with the system media and be able to tolerate the temperature range, plus provide acceptable levels of permeation and absorption.
Below are several common core materials used and associated benefits in industrial-grade hoses:
It’s common to have the right hose for an application with an improper installation. An error Swagelok field engineers see frequently is allowing a hose to hang vertically from a horizontal end connection. In such situations, you should install a 90° elbow fitting first.
Another set of common installation errors results from improper hose length. Excessive hose length can take up unnecessary space, allowing the hose to rub against itself or a machine, accelerating wear. Alternatively, a hose can be too short and tightly stretched between two points. In this case, thermal expansion, system pressure change, or slight movement at the connection points can cause leakage at the end connection. The proper hose length will have enough slack to accommodate connection point movement, but not enough to allow for rubbing, interference, or kinking.
When storing hose, here are a few points to keep in mind:
Hose failure can be predicted. Based on the hose type and its use, hoses should be checked and replaced at certain regular intervals. You do not need to wait until there is a problem or a dangerous leak to inspect your hoses.
A proper maintenance schedule should consider the specific application and hose type. Some hose types wear faster than others. In addition, these variables will lead to faster wear:
Hoses are a convenient and quick way to connect two points in your fluid system but be sure to take the necessary steps to ensure safety and avoid costly downtime.