When I went in to get my grill cylinder filled they said I will need to have an OPD installed in my cylinder. What is an OPD?
OPD is an acronym meaning over-fill prevention device. Now required by national standards, an overfilling prevention device is a secondary means of assuring that cylinders are not overfilled. Overfilling of cylinders is a dangerous condition and has been determined to be the most frequent cause of propane cylinder accidents. As of October 1, 1998, all DOT cylinders with capacities of 4 pounds up to 40 pounds must be manufactured with an OPD-equipped valve. If your cylinder is inspected for re-qualification after October 1, 1998, an OPD-equipped valve must be installed prior to the cylinder being refilled. As of April 1, 2002, cylinders without OPD’s cannot be refilled.
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