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Jet A1 pipe material

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tristrium1

Structural
Mar 17, 2011
5
Hi everybody

I am working as the client on an above ground storage tank diesel and Jet A1 installation in the DRC. The question of whether the piping for the Jet A1 fuel tanks should be stainless steel has arisen. The supplier has said that they have never installed stainless piping but this is Africa. Are there any codes which stipulate stainless piping for Jet A1 (in particular API) or is carbon steel ok. I am only worried about contamination of the fuel. Any help would be greatly appreciated.

Thanks
 
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Worry very much about contamination of the fuel, but not from the piping. Use carbon steel. SS is not necessary.

Let your acquaintances be many, but your advisors one in a thousand’ ... Book of Ecclesiasticus
 
Carbon steel piping materials are Ok....

but I would find a USARMY or military text reference that specifys this.

Internal piping coatings and connsiderations for static electricity grounding are some other design considerations.

This is useful:


Tell us more specifics about your design.....
 
Why? You got a military project?
Carbon steel, without internal coating.

Let your acquaintances be many, but your advisors one in a thousand’ ... Book of Ecclesiasticus
 
Carbon steel is commonly used in Australia for JEtA1 from the refinery to the airfield terminal tanks. I have used ss or aluminium in some installation after the filter/separators at military installations prior to local storage.

One problem with the ss was the client specified Sch5s ss, presumably to save money. Straight pipe was available in Sch5s but the fittings only available in Sch10s. The difference in wall thickness created a small weir.

The small water content in the JetA1 pooled at this change in section in a stagnant line & was sufficient for microbiological growth to occur. This was then pumped into the aluminium fuel tanks of a jet fighter. Over time the wing tanks corroded (MBC) at the inlet nozzle beneath the wing. When an operator connected the refulelling hose it pushed right into the wing tank. Luckily there was no fire b ut the operator was covered in JetA1.

New installations required the pipes to be sloped and any Sch10s fittings to have the obvert of fittings ground so no weir existed.

"Sharing knowledge is the way to immortality"
His Holiness the Dalai Lama.

 
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