Re: Farmall 450 LP ?

John A. · Sep 11, 2009

Owen, In theory you are correct. but not necesserly the case! It will be the valve that the entrance to it is at the highest point In the tank or any where above the liquid full line, that is the 80% full line. Look at your 450LP, both valves are at the same level on the tank, But the liquid valves draws off the bottom of the tank, and the vapor draws off the top. See what I mean? Hope this helps!
Later,
John A.

Owen Aaland · Sep 11, 2009

(quoted from post at 15:11:31 09/11/09) Owen, In theory you are correct. but not necesserly the case! It will be the valve that the entrance to it is at the highest point In the tank or any where above the liquid full line, that is the 80% full line. Look at your 450LP, both valves are at the same level on the tank, But the liquid valves draws off the bottom of the tank, and the vapor draws off the top. See what I mean? Hope this helps!
Later,
John A.

Which is why I qualifies my statement and did not address tanks that have both valves at the same level. I have seen tanks that have both valves near the top and others that have both valves near the bottom. Unfortunately too many are only marked with a stick on label that disappears after years of use, especially on trucks and RVs.

Anonymous-0 · Sep 12, 2009

Owen, By in large most tanks I have seen were clearly labeled with an aluminum ring tag on the valve handle or a welded on tag on the tank. If the stick on tag is gone the "vapor" will be the valve that primarly has only vapor come out when opened. The "Liquid" will have liquid LP come out when opened.
If you can not tell then Your theory will do just fine!
I have worn out 4 or 5 pickups on LP and run more LP tractors than I can count I have never seen a tank where the valves were strung out all over a tank! If so it was a nightmare to manufacture, Where the ones with the valves in one central location were easier to manufacture and quality control was held to a higher level.
Tell me about the tank you have in question! Its make and application!
Later,
John A.

Owen Aaland · Sep 12, 2009

I've spent a portion of the last 34 years servicing and repairing trucks for Schwans Food Company. They converted most of their trucks to LP in the late 70,s. Currently their tanks are made in Canada. Outside of the required specification plate, all other labels on the tanks are stickers. Since they use a fuel pump inside the tank to supply liquid LP to the fuel injectors, the fuel leaves and returns to the tank through a delivery module on the center rear of the tank. The "normal" liquid and vapor valves may be located on the rear but some have them on the sides at about the 80 percent level. The worst ones are located on the frame side so you can almost get your hand on the valve to open it once the box is installed.

Re: Farmall 450 LP ?

John A.

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Owen Aaland

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Anonymous-0

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Owen Aaland

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