Normal Vent [1]
A storage take device that automatically relieves internal pressure or vacuum during normal storage (atmospheric pressure equalization) and during normal operations (fills or withdraws).
See also PEI/RP800 [2].
A storage take device that automatically relieves internal pressure or vacuum during normal storage (atmospheric pressure equalization) and during normal operations (fills or withdraws).
See also PEI/RP800 [2].
Links
[1] https://testing.pei.org/wiki/normal-vent
[2] https://testing.pei.org/node/689