When working with pressures of up to 400 PSI, regularly inspecting all hoses and fittings is extremely important. In addition to pressure, your air compressor generates a dangerous amount of heat. The temperature of the compressed air at the discharge outlet can exceed 200 degrees F. Air hoses are rated for both operating pressure and temperature. Make certain that the hoses you’re using meet the needs of your equipment and your application; that they are rated to meet both pressure and temperature needs. That information can also be found on the data plate.
Be attentive to the condition of the hoses. Old or frayed hoses can cause air leaks, which reduce pressure and lead to machine malfunctions. In addition, a damaged hose can lose pressure and then suddenly re-pressurize, potentially causing damage to the compressor and injury to the operator.
Hose fittings are also components that are critical to safe operation. Know the type of fitting you are using and what is it rated for. Know, too, the maximum working pressure of each fitting and confirm that the retainer pin is installed in order to prevent the fitting from coming apart during operation. Make certain that the hose and fittings mate properly, as not all fitting methods are approved for all hoses.
Then, prior to use, inspect all fittings, checking for the proper settings along with any signs of wear or fatigue. Make sure that the approved hose restraint device is properly installed and working properly. Lastly, remove any hose or fitting that does not meet the maximum operating conditions of the system.
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