A320 pneumatic question
Dear all
I have a question related to A320 pneumatics. Kindly help me out
FCOM says +/- 36 psi is obtained from the HP stage of the high pressure compressor when IP stage pressure is insufficient
I would like to know when IP stage is supplying ( NO HP stage involved) what is the pressure obtained ? is it also +/- 36 psi just like when HP stage is supplying ?
IP stage pressure is not mentioned in the FCOM
However Bleed valve PRSOV maintains a delivery pressure of +/- 45 psi (CEO ) , Does this mean IP stage when open will supply as much pressure as it can (even more than 45 psi) and bleed PRSOV will then regulate it to +/- 45 psi ,
And since HP valve is open at low engine power , the pressure coming out of HP vale is generally low , so +/- 36 psi is the pressure obtained more pressure is not possible
please correct me if my understanding is correct
I thank you and I am grateful
Regards
Overhead