Hum - now with the new OPD valve - item 3 requires the valve be taken
off.
It won't drain out upside down. Maybe through the escape valve -
maybe.

Martin
--
Martin Eastburn, Barbara Eastburn
@ home at Lion's Lair with our computer
NRA LOH, NRA Life
NRA Second Amendment Task Force Charter Founder


lane wrote:

Purging
amounted to opening up the bleed screw while propane pumping was going
on, screw remained open until propane fogged out of the opening. The
tanks were then filled to proper weight.

My understanding is that that is not a proper purging.

Per NPGA bulletin 133-a
To purge a container, the following steps should be taken:
1. Purging of containers should be performed in an approved area (see NFPA
#58)
2. Determine if the container pressure is zero. Should the container contain
only air pressure, the air may be vented directly to the atmosphere through
the service valve.
3. If free water is present in the container, it should be drained.
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.

-----------

Lane