Installation of liquefied petroleum gas storage tanks

Specification for installation of liquefied petroleum gas storage tanks
The design pressure of liquid liquefied petroleum gas pipelines should be greater than the gaseous pressure of 1.0MPa
The nominal pressure (grade) of liquid liquefied petroleum gas transmission pipelines and liquefied petroleum gas storage tanks, containers, equipment, and valves and accessories installed on pipelines in stations should be higher than their design pressure. Generally, PN20 or PN40 (i.e. pressure) is chosen
It is strictly prohibited to use Gray iron valves and accessories on liquefied petroleum gas storage tanks, vessels, equipment and pipelines. In cold areas such as the coldest monthly average minimum temperature ≤ -10 ℃, steel valves and accessories shall be used