All Flame King cylinders are vacuum purged and ready to fill.

If your tank has a sticker on it that says it needs to be purged, it may be there for legal purposes but does not mean that the tank is not purged. Our tanks now have stickers stating that they are pre-puged.

Because our tanks are vapor draw, they cannot be mounted upside down.

In fact it is highly flammable and can cause a fire if the liquid comes out instead of vapor (this does not apply to the forklift tank).

If your tank says 15lb on the label, it is usually because that is how much most places will fill it at max capacity.

Most likely your tank is a standard 20lb tank

For safety purposes, tanks only fill to about 80%. This allows for any expansion of gas that may occur due to temperature changes.

All propane torches must be turned on very low in order for them to light. Once there is a flame they can be adjusted to a much bigger flame but initially the knob has to be opened very low.

DOT certified tanks require re-certification after 12 years from the date of manufacture.

ASME certified tanks never need to be re-certified.

There is a magnet at the end of the OPD valve inside the tank. This corresponds with a magnet located on the back of the gauge itself. As the valve goes up and down indicating the level of propane, the magnetic field also moves the needle up and down to show the levels on the gauge.

There is a magnet at the end of the OPD valve inside the tank. This corresponds with a magnet located on the back of the gauge itself. As the valve goes up and down indicating the level of propane, the magnetic field also moves the needle up and down to show the levels on the gauge. So if you remove the gauge, it will not work with another tank since there will be no magnet inside the valve to indicate the levels of propane to the gauge.