What is the safe way to fill a propane tank?
I run into three types of propane fill attendants. (Class A horizontal) One just connects to the valve and fills the tank. Another opens the bleed valve as they fill the tank until propane sputters ou...
Forum Discussion
JimK-NY wrote:
I have seen more and more places stop venting when filling propane tanks. The OPD valve is designed to prevent overfilling. In addition every fill station I have seen uses a scale as an additional check against overfilling due to OPD valve failure.
The OPD is intended as a backup device for a Fixed Liquid Level Gauge ("spitter/bleeder/vent") or weight based fill. It is not intended to be the primary full 80% measurement indicator. Weight or measured fill preferences vary from state to state, although measured fills do seem to be the most common. NY is generally a weight based state for DOT cylinders, although I don't know if that's a legal requirement or not.
