Aluminum vs Stainless Weight

You can haul in stainless, but dont quote me, its gotta be a DOT 407 trailer. Something like that. We've hauled plenty of methanol in stainless. Just not as efficient.

 

And to add to that, propane, CNG, natural gas liquids are all hauled in steel bottles. Just have brass acme fittings on the liquid and vapor hoses.

 

Big difference in pressure trailers for propane, NG etc.
Heavy steel and different pressure valves. Not to mention the weight.

 

methanol and ethanol and isopropanol can all be hauled in DOT 406. 40 years ago I had 4 stainless MC306 [the last dot Spec] dedicated to Union Carbide's World Alcohol division set up to haul 190/200 pure ethanol going to pharmaceutical and cosmetic facilities under bond.

 

Static control [Scully grounding balls] is common on stainless equipment...I've seen fuel stored in everything from modified dry bulkers to insulated DOT407's and controled static same as one would for flammable chemicals.D' Oh.

Both Chem Leaman and Matlack purchased their fuel with future spot contracts and squrreled away the excess everywhere and in anything clean as the street prices rockeded upwards.

 

I’m sure all fuel loading requires a scully system on all trailers? I can’t think of any I have been to that didn’t.

 

I was just pointing out that they're steel lol

 

When I asked about sparking with stainless I was thinking of accident/crash issues. I'm assuming drivers know to ground them for loading/unloading.

 

There is enough stuff to be a problem on any fuel trailer in an accident.

Wires tearing loose from lights and a number of items on the trailer and truck and the roadway can make sparks. The biggest danger is he fuel retained between the API bottom loading adaptor and the compartment valve. The 'wet lines' retain fuel outside the vessel in the pipes which are made with shear sections designed to tear away without compromising the vessel and known to 'flambe' when autos contact the under belly piping. I know they are working to elininate wet lines, but I don't know how far it has gone.