Talk:POL valve

This article needs expansion and correction. The POL valve is not completely illegal in the United States and is still used on larger Cylinders. It should also be noted that the new valves also accept the POL fittings. --Kb3pxr (talk) 18:10, 22 December 2016 (UTC)

Pretty much every tank in the united states over the size of a grill tank has a POL fitting (and even grill tank valves are still compatible, but POL is not the primary connection method anymore). Very certain they are not illegal. The author may be relating to Overfill Prevention Devices (OPD) that are required for small gas containers. — Preceding unsigned comment added by 70.210.78.50 (talk) 12:52, 3 August 2017 (UTC)

Obviously not illegal on large (?) cylinders (available nation-wide), but according to http://www.johnsonville.com/club/articles/propane-tank-connection-types.html > "POL Valve" heading, "the POL valve has been phased out of production and cannot be refilled legally". Further reference to newer technology: "Acme valves differ from POL valves in its size and use of external threads. When connecting the Acme valve to your grill, tools are no longer needed. A larger, hand-turned fitting will securely connect your Acme valve to the grill. Acme valves are compatible with grills that use POL valves as well." ... "The most current and common type of valve being used on propane tanks is the Overfill Prevention Device (OPD) valve." {undated}

Further preparatory notes: terms: "A tank is not a cylinder": a tank is permanently mounted & connected by a licensed professional, with a check valve, overfill protection, and a separate fitting for refill. A cylinder is portable. (Not all vendors respect this distinction. That distinction might be the basis for this question of 'legality', but it is the permanent (professionally connected) tank that "does not require the new(?) OPD (Overfill Protection Device) valves")

Boldklub-PJs (talk) 03:28, 29 May 2018 (UTC)