API Std 650 - Shell Nozzles (mm)
American Petroleum Institute (API)
standards
- API Std 650 - Standard for Welded Tanks for Oil Storage
API Std 650 - Shell Nozzles (mm) - flanged fitting | ||||||||
---|---|---|---|---|---|---|---|---|
Size of
Nozzle (NPS) | Outside
Diameter of Pipe (OD) | Nominal
Thickness of Flanged Nozzle Pipe Wall [a]
\(t_n\) | Diameter
of Hole in Reinforcing Plate
\(D_R\) | Length of
Side of Reinforcing Plate [b] or Diameter
\(L=D_o\) | Width of
Reinforcing Plate
\(W\) | [c] Min. Dist.
from Shell to Flange Face
\(J\) | [c] Min. Dist.
from Bottom of Tank to Center of Nozzle (Regular Type) [d] \(H_N\) | [c] Min. Dist.
from Bottom of Tank to Center of Nozzle (Low Type) \(C\) |
48 | 1219.2 | [e] | 1222 | 2455 | 2970 | 400 | 1325 | 1230 |
46 | 1168.4 | [e] | 1172 | 2355 | 2845 | 40 | 1275 | 1180 |
44 | 1117.6 | [e] | 1121 | 2255 | 2725 | 375 | 1225 | 1125 |
42 | 1066.8 | [e] | 1070 | 2155 | 2605 | 375 | 1175 | 1075 |
40 | 1016.0 | [e] | 1019 | 2050 | 2485 | 375 | 1125 | 1025 |
38 | 965.2 | [e] | 968 | 1950 | 2355 | 350 | 1075 | 975 |
36 | 914.4 | [e] | 918 | 1850 | 2235 | 350 | 1025 | 925 |
34 | 863.6 | [e] | 867 | 1745 | 2115 | 325 | 975 | 875 |
32 | 812.8 | [e] | 816 | 1645 | 1995 | 325 | 925 | 820 |
30 | 762.0 | [e] | 765 | 1545 | 1865 | 300 | 875 | 770 |
28 | 711.2 | [e] | 714 | 1440 | 1745 | 300 | 825 | 720 |
26 | 660.4 | [e] | 664 | 1340 | 1625 | 300 | 750 | 670 |
24 | 609.6 | 12.7 | 613 | 1255 | 1525 | 300 | 700 | 630 |
22 | 558.8 | 12.7 | 562 | 1155 | 1405 | 275 | 650 | 580 |
20 | 508.0 | 12.7 | 511 | 1055 | 1285 | 275 | 600 | 525 |
18 | 457.2 | 12.7 | 460 | 950 | 1160 | 250 | 550 | 475 |
16 | 406.4 | 12.7 | 410 | 850 | 1035 | 250 | 500 | 425 |
14 | 355.6 | 12.7 | 359 | 750 | 915 | 250 | 450 | 375 |
12 | 323.8 | 12.7 | 327 | 685 | 840 | 225 | 425 | 345 |
10 | 273.0 | 12.7 | 276 | 585 | 720 | 225 | 375 | 290 |
8 | 219.1 | 12.7 | 222 | 485 | 590 | 200 | 325 | 240 |
6 | 168.3 | 10.97 | 171 | 400 | 495 | 200 | 275 | 200 |
4 | 114.3 | 8.56 | 117 | 305 | 385 | 175 | 225 | 150 |
3 | 88.9 | 7.62 | 92 | 265 | 345 | 175 | 200 | 135 |
2 [f] | 60.3 | 5.54 | 63 | - | - | 150 | 175 | [h] |
1 1/2 [f] | 48.3 | 5.08 | 51 | - | - | 150 | 150 | [h] |
1 [f] | 33.4 | 6.35 | - | - | - | 150 | 150 | [h] |
3/4 [f] | 26.7 | 5.54 | - | - | - | 150 | 150 | [h] |
API Std 650 - Shell Nozzles (mm) - threaded and socket welded couplings | ||||||||
---|---|---|---|---|---|---|---|---|
Size of
Nozzle (NPS) | Outside
Diameter of Pipe (OD) | Nominal
Thickness of Flanged Nozzle Pipe Wall [a]
\(ft_n\) | Diameter
of Hole in Reinforcing Plate
\(D_R\) | Length of
Side of Reinforcing Plate [b] or Diameter
\(L=D_o\) | Width of
Reinforcing Plate
\(W\) | [c] Min. Dist.
from Shell to Flange Face
\(J\) | [c] Min. Dist.
from Bottom of Tank to Center of Nozzle (Regular Type) [d] \(H_N\) | [c] Min. Dist.
from Bottom of Tank to Center of Nozzle (Low Type) \(C\) |
3 [g] | 108.0 | Coupling | 111.1 | 285 | 360 | - | 225 | 145 |
2 [f] | 76.2 | Coupling | 79.4 | - | - | - | 175 | [h] |
1 1/2 [f] | 63.5 | Coupling | 66.7 | - | - | - | 150 | [h] |
I [f] | 44.5 | Coupling | 47.6 | - | - | - | 125 | [h] |
3/4 [f] | 35.0 | Coupling | 38.1 | - | - | - | 100 | [h] |
- [a] For extra-strong pipe, see ASTM A53 or ASTM A106 for other wall thicknesses; however, piping material must conform to API Std 650 4.5.
- [b] The width of the shell plate shall be sufficient to contain the reinforcing plate and to provide clearance from the girth joint of the shell course.
- [c] Unless otherwise specified by the Purchaser, the nozzle shall be located at the minimum distance but shall also meet the weld spacing requirements of API Std 650 5.7.3.
- [d] The \(H_N\) dimensions given in this table are for Appendix A tank designs only; see API Std 650 5.7.3 to determine minimum \(H_N\) for basic tank designs.
- [e] See Table API Std 650 5-7b, Column 2.
- [f] Flanged nozzles and couplings in pipe sizes NPS 2 or smaller do not require reinforcing plates. \(D_R\) will be the diameter of the hole in the shell plate, and Weld A will be as specified in Table API Std 650 5-7b, Column 6. Reinforcing plates may be used if the construction details comply with reinĀ¬forced nozzle details.
- [g] A coupling in an NPS 3 requires reinforcement.
- [h] See API Std 650 5.7.3.
Tags: API Standards