Manchester Tank (Franklin, Term.) has issued a safety bulletin to all propane cylinder fillers regarding a thread seal issue on cylinders manufactured between January 2012 and September 2012. The issue can result in leaks at the valve-to-cylinder connection, and only involves. 100-lb DOT cylinders with a single vapor POL valve. It does not include cylinders of other sizes or liquid service, or multivalve cylinders. The issue only involves 100-lb cylinders with a date stamp between 1-12 and 10-12.
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