How long will a m60 cylinder last at 20 liters?

The duration a standard M60 gas cylinder lasts when dispensing at a rate of 20 liters per minute depends on its total volume and pressure. An M60 cylinder typically contains about 50 liters of gas at high pressure. If the cylinder is fully utilized at a flow rate of 20 liters per minute, it would last approximately 2.5 minutes, assuming ideal conditions and no losses. Actual duration may vary based on factors like pressure drop and temperature changes.