Volume Bottle for pneumatic actuator
Volume Bottle for pneumatic actuator
(OP)
I would like to calculate the volume bottle size required to close a fail open pneumatically operated on/off valve 3 times, when the Instrument Air Supply header has failed. My actuator size is 10,500 cubic inches. The volume bottle would have 100psig air and the actuator requires 60 psig air to operate. Does anyone know how to calculate the required volume bottle size?
Thanks in advance.
Thanks in advance.





RE: Volume Bottle for pneumatic actuator
Assuming bottle volume = V1
V1*100 psi = (V1 + 3 * 10500)*60 psi
Giving
V1 = 47250 cubic inch
To be on the safe side take larger bottle to acomodate for leakage.
RE: Volume Bottle for pneumatic actuator
RE: Volume Bottle for pneumatic actuator
Thanks again.
RE: Volume Bottle for pneumatic actuator
Note that I specifically stated "at constant temperature". I just wanted to give you an idea to the way to solve the one variable equation to calculate the volume and you did it.