Forum Discussion
mobeewan
Jul 11, 2014Explorer
Watch out for "prepurged" cylinders. It is a vacuum purge done by the factory to "remove" all air from the cylinder.
I bought a brand new 30 lb cylinder mfg by Worthington at my local Northern Tools. The date on the collar indicated the cylinder was only 3 months old. The cylinder wrapper/label stated on it that the cylinder had been vacuum purged at the factory and that the vacuum purge was only good for 6 months and that after that the cylinder would have to be purged in accordance with a certain regulation (can't remember the reg) but it is referring to propane gas purging.
So read the label before filling new cylinders. If the cylinder is over 6 months you may need to have the cylinder purged with propane before filling it.
Just make sure the person filling it doesn't open the spitter screw first sucking cold humid air into the cylinder before starting to pump liquid into the cylinder like they did mine. He said he purged it for me by opening the screw before he filled it.
I bought a brand new 30 lb cylinder mfg by Worthington at my local Northern Tools. The date on the collar indicated the cylinder was only 3 months old. The cylinder wrapper/label stated on it that the cylinder had been vacuum purged at the factory and that the vacuum purge was only good for 6 months and that after that the cylinder would have to be purged in accordance with a certain regulation (can't remember the reg) but it is referring to propane gas purging.
So read the label before filling new cylinders. If the cylinder is over 6 months you may need to have the cylinder purged with propane before filling it.
Just make sure the person filling it doesn't open the spitter screw first sucking cold humid air into the cylinder before starting to pump liquid into the cylinder like they did mine. He said he purged it for me by opening the screw before he filled it.
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