pressure drops, the tank should be replenished in time to avoid its normal use;
5. The maximum working pressure of the pressure tank shall be consistent with the
pre-filling pressure indicated on the tank body, If the pre-charging pressure is changed
due to the need of use, the maximum working pressure will change accordingly.
Basically, the following rules are followed: if the pre-charging pressure decreases, the
maximum working pressure will decrease accordingly. The decrease value shall be
calculated, the maximum working pressure is constant when the pre-charge pressure
increases.