What is an OPD LP Gas Tank?
OPD stands for Overfill Prevention Device. As of April 1, 2002, no LP gas cylinder can be filled unless it is equipped with an (OPD). You can identify an OPD tank by looking at the valve handles, all the new ones are shaped like a triangle. So, as of April 1, 2002, no new valve, no fill. I still see a lot of these old valves floating around. Don’t confuse the threads on the tank (old style vs. new style) valve with OPD. The OPD device is INSIDE the tank. It will require a complete replacement of the valve to bring it up to specs. Just my opinion, but it’s cheaper to buy a new tank than to try to retrofit With a new tank only $23 – $27 at Sam’s or BJ’s, valve replacement is probably not worth it. Just remember, the old tank is considered haz-mat and must be disposed of properly. But… There may be some untrained employees who fill tanks that do not know about OPD and will fill an old tank. Remember this is a life safety issue. While you might think you are getting a “deal” in more gas,