Mr georgeverghaese thanks for your help and to all members too
Pleas should you send me more papers about unit also .when and how could I derime the unit? Mail Mohamedkasaby@yahoo.com
Thanks
The pressure of N2 storage tank increases in summer,the level get 80%and the vent opens.
The tank body has a small area records low temperatures 7degree than all body I doubt about insulation
I will be greatful if I find the reason
MOHAMED
Thanks