Manufacturers Standardization Society (MSS)

Manufacturers Standardization Society


Dimensions of Butt Weld Straight Tees MSS SP-75

Straight Tee MSS SP-75

OTHER FITTING DIMENSIONS

Straight Tees
NPS
D
DN
D
OD
D
Center to End
Run
C
Outlet
M
16 400 406.4 305 305
18 450 457 343 343
20 500 508 381 381
22 550 559 419 419
24 600 610 432 432
26 650 660 495 495
28 700 711 521 521
30 750 762 559 559
32 800 813 597 597
34 850 864 635 635
36 900 914 673 673
38 950 965 711 711
40 1000 1016 749 749
42 1050 1067 762 711
44 1100 1118 813 762
46 1150 1168 851 800
48 1200 1219 889 838
50 1250 1270 934 876
52 1300 1321 978 908
54 1350 1372 1016 946
56 1400 1422 1054 978
58 1450 1473 1092 1016
60 1500 1524 1118 1054
  • Dimensions are in millimeters unless otherwise indicated
  • Wall thickness (t) must be specified by customer


Dimensional Tolerances MSS SP-75

NPS Inside Diameter at End Out of Roundness
At Ends of Fittings Throughout body of Elbows
Elbows Other
16-24 ±2.29 4.83 3.05 2.5%
26-36 ±2.29 *A 3.05 2.5%
38-48 ±3.05 *A 3.05 2.5%
50-60 ±6.35 *A 3.05 2.5%
*A out-of-roundness tolerances at ends shall be 1% of diameter for NPS26 and larger

NPS 90°-45°
Elbows LR
Cte
Tees
Cte
Reducers
Length
Caps
Length
16-24 ±2.29 ±2.29 ±2.29 ±6.35
26-36 ±3.05 ±3.05 ±4.83 ±9.65
38-48 ±4.83 ±4.83 ±9.65 ±9.65
50-60 ±6.35 ±6.35 ±9.65 ±9.65
Cte = Center to end Dimension

NPS Angularity off Angle Q Elbows Off Plane P Eccentric and Concentric Reducers Off Plane *B
16-24 2.29 6.35 2.5%
26-36 2.29 12.70 2.5%
38-48 3.05 19.05 2.5%
50-60 4.80 19.05 2.5%
*B Values that are percent of O.D.

Dimensional tolerances are in millimeters unless otherwise indicated



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