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David A. Webb
 
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Default Initial fill (should have looked before I asked)

On Wed, 17 Dec 2003 20:56:48 -0500, Jeff Wisnia
wrote:

4. Pressurize the container to approximately 15 PSIG with LP-gas vapor. Never
purge with liquid LP-gas; to do so will cause the moisture vapor to chill and
remain in the container.

5. Fully open the container service valve and vent safely to the atmosphere.

6. Repeat the fourth and fifth steps for a total of five purgings.


And exactly how is doing this making the tank safer than if it were
filled without purging?

As soon as the tank goes from zero pressure to 15psi the first time,
the contents are no longer an explosion hazard. So why pressurize and
vent?

Is it simply to remove air because the air may contain moisture?

Dave