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Tuesday, October 14th, 2014
Aviation Fueling Hose Measures

Handling fuel or chemicals is critical and potentially dangerous. It is important to take into consideration the quality of the materials, tools, and products that will be used in handling these chemicals not only for the handler’s health safety but for the smooth flow of the operation and process as well. When you purchased aviation fueling hoses and you noticed that you received the incorrect size hose assembly, this could lead to additional downtime causing lag in the process and operation workflow. At the very least, you will likely incur a restocking charge and more paperwork in addition to the delay.

The Proper Measure

In order avoid these untimely problems in the operation, learn to identify the Inside Diameter (ID) of the existing aviation fueling and/or defueling hose. The first step is to look at the serial number on the fittings of both end of the hose assembly. Hewitt aviation hoses are marked with either “HH XXXXX” or “HS XXXXX”. If you cannot identify the number, Hewitt, a division of Husky Corporation, is always open for you to call so we can check our records for a copy of the hose certificate. For hoses that are more than 10 years old, serial numbers are usually not available. Follow these assessments on your aviation fuel hose to see if you received the proper size of hose:

For instances where no serial number can be found, use at least two of the following recommended processes to validate the hose ID needed for ordering the correct size hose assembly.

• Check the embedded lay line on the hose. Hewitt aviation hoses show the size in the embedded lay line.

Example: HEWITT AIRCRAFT FUELING HOSE 2 INCH / 50 MM NFPA-407 ……..

• Identify the marks on the ferrules by checking the fittings. Ferrules should have the size markings visible. The list below shows typical markings.