Minimum design pressures of container lb. per sp. in. gauge | |||||||
Container type | For gases with vapor press. Not to exceed lb. per sp. in. gauge 100°F (37.8°C.) | 1949 and earlier editions ofASME Code(Par. U-68,U-69) | 1949 edition ofCode (Par. U-200,U-201); 1950,1952, 1956, 1959, 1962, 1965, and968 (Division I) editions of ASMECode; All editions of API-ASME Code3 | ||||
801 | 801 | 801 | 1001 | ||||
100 | 100 | 100 | 125 | ||||
125 | 125 | 125 | 156 | ||||
150 | 150 | 150 | 187 | ||||
175 | 175 | 175 | 219 | ||||
2002 | 215 | 200 | 250 |
1 | New type 80 storage containers have not been authorized since Dec. 31, 1947. |
2 | Container type may be increased by increments of 25. The minimum design pressure of containers must be 100% of the container type designations when constructed under 1949 or earlier editions of the ASME Code (Par. U-68 and U-69). The minimum design pressure of containers must be 125% of the container type designation when constructed under: |
1. The 1949 ASME Code (Par. U-200 and U-201); | |
2. 1950, 1952, 1956, 1959, 1962, 1965, and 1968 (Division I) editions of the ASME Code; and | |
3. All editions of the API-ASME Code. | |
3 | Construction of containers under the API-ASME Code is prohibited after July 1, 1961. |