Operating pressure of atmospheric pressure dome storage tanks
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At chemical plants, atmospheric pressure dome storage tanks are commonly used; what range of operating pressure is appropriate?
The operating pressure of atmospheric-pressure dome storage tanks is generally maintained at atmospheric pressure, around 0.1 MPa. .
It is generally between 0.2 and 1.35 KPa, referring to the operating pressure of the breathing valve and the emergency relief valve
Atmospheric pressure storage tanks refer to tanks whose operating pressure at the top does not exceed 0.02 MPa
As specified in the petrochemical standard GB50160, a atmospheric storage tank is a tank whose design pressure is less than or equal to 6.9 KPa (gauge pressure at the tank top).
\"Code for Fire Protection Design of Petrochemical Enterprises\" (GB 50160
Gauge pressure -0.5~2KPa
The operating pressure still depends on the saturated vapor pressure of the material stored, in order to prevent too much material from escaping the system through the breather valve
This post was last edited by jlchina on 2025-2-6 at 10:23. Pressures below 6.9 kPa at normal conditions fall under the category of low-pressure tanks; pressures ranging from 6.9 kPa to 0.1 MPa belong to low-pressure tanks as well; pressures above 0.1 MPa are considered pressure storage tanks； Different standards are applied in three different pressure ranges, and the appropriate one should be selected accordingly.