E-240 has M112 V6 Engine. 6 cylinder.
A full E cylinder typically holds 680 liters of oxygen. At a flow rate of 5 LPM, the E cylinder would last approximately 136 minutes (2 hours and 16 minutes).
A E. Whitney has written: 'The horizontal cylinder in laminar free connection'
The duration a size E oxygen cylinder will last depends on the flow rate in liters per minute set on the regulator. A size E cylinder typically holds around 680 liters of oxygen. At a flow rate of 2.0 liters per minute, the cylinder would last approximately 340 minutes, which is about 5.7 hours.
E. Krahn has written: 'The laminar boundary layer on a rotating cylinder in crossflow'
A size E oxygen cylinder typically holds around 6800 liters of oxygen. At a flow rate of 4 liters per minute, the cylinder would last for approximately 1700 minutes, or about 28 hours.
The cylinder had bolt torque specification is 90 pounds. The cylinder head bolts should be torqued in 30 pound intervals.
An E oxygen cylinder typically contains around 680 liters of oxygen when filled to capacity. At a flow rate of 2 liters per minute, the cylinder would last approximately 340 minutes or about 5.7 hours.
Try e-gunparts.com
First, it is not an approximation but the formula for the exact value of the volume. Second, pi and e are quite different numbers.
You might want to try E-gunparts (see related link).
use a dodge