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ANSI / ASME · Class 150

Family: ANSI / ASME flanges
Reference: Class 150 (150 lb)
Standard: ASME B16.5

Dimensional drawing

Welding Neck flange · WN

Dimensioned technical drawing of Welding Neck flange · WN · class 150 · Texas Flange

Threaded flange

Dimensioned technical drawing of Threaded flange · class 150 · Texas Flange

Slip-On flange · SO

Dimensioned technical drawing of Slip-On flange · SO · class 150 · Texas Flange

Lap Joint flange

Dimensioned technical drawing of Lap Joint flange · class 150 · Texas Flange

Socket Weld flange · SW

Dimensioned technical drawing of Socket Weld flange · SW · class 150 · Texas Flange

Blind flange

Dimensioned technical drawing of Blind flange · class 150 · Texas Flange

Enlargeable sectional drawings. Dimensional tables are in mm; NPS retains its nominal designation. RF height shown in the drawings: 1/16″ = 1.5875 mm.

Dimensions · Class 150

All dimensions in mm. NPS: nominal designation.

NPSOTRXNo. × hole Ø (mm)Bolt circle Ø (mm)L2HB2LBrL3B3D
1/288.9011.1835.0530.234 × Ø15.7560.4547.7521.3415.7515.7522.353.0515.7522.869.65
3/498.5512.7042.9338.104 × Ø15.7569.8552.3226.6720.8315.7527.693.0515.7528.1911.18
1107.9514.2250.8049.284 × Ø15.7579.2555.6333.5326.6717.5334.543.0517.5335.0512.70
1-1/4117.3515.7563.5058.674 × Ø15.7588.9057.1542.1635.0520.5743.184.8320.5743.6914.22
1-1/2127.0017.2773.1565.024 × Ø15.7598.5561.9848.2640.8922.3549.536.3522.3550.0415.75
2152.4019.0591.9577.724 × Ø19.05120.6563.5060.4552.5825.4061.987.8725.4062.4817.53
2-1/2177.8022.35104.6590.424 × Ø19.05139.7069.8573.1562.7428.4574.687.8728.4575.4419.05
3190.5023.88127.00107.954 × Ø19.05152.4069.8588.9077.9830.2390.689.6530.2391.4420.57
3-1/2215.9023.88139.70122.178 × Ø19.05177.8071.37101.6090.1731.75103.389.6531.75104.1422.35
4228.6023.88157.23134.878 × Ø19.05190.5076.20114.30102.3633.27116.0811.1833.27116.8423.88
5254.0023.88185.67163.588 × Ø22.35215.9088.90141.22128.2736.58143.7611.1836.58144.5323.88
6279.4025.40215.90192.028 × Ø22.35241.3088.90168.40154.1839.62170.6912.7039.62171.4526.92
8342.9028.45269.75246.138 × Ø22.35298.45101.60219.20202.6944.45221.4912.7044.45222.2531.75
10406.4030.23323.85304.8012 × Ø25.40361.95101.60273.05254.5149.28276.3512.7049.28277.3733.27
12482.6031.75381.00365.2512 × Ø25.40431.80114.30323.85304.8055.63327.1512.7055.63328.1739.62
14533.4035.05412.75400.0512 × Ø28.45476.25127.00355.60336.5557.15359.1612.7079.25360.1741.40
16596.9036.58469.90457.2016 × Ø28.45539.75127.00406.40387.3563.50410.4612.7087.38411.2344.45
18635.0039.62533.40504.9516 × Ø31.75577.85139.70457.20438.1568.33461.7712.7096.77462.2849.28
20698.5042.93584.20558.8020 × Ø31.75635.00144.53508.00488.9573.15513.0812.70103.12514.3554.10
22749.3045.97641.35615.9520 × Ø35.05692.15149.35558.80539.7579.50564.3912.70107.95565.1560.45
24812.8047.75692.15663.4520 × Ø35.05749.30152.40609.60590.5582.55615.9512.70111.25615.9563.50

NPS 1/2

NPS1/2
O88.90
T11.18
R35.05
X30.23
No. × hole Ø (mm)4 × Ø15.75
Bolt circle Ø (mm)60.45
L247.75
H21.34
B215.75
L15.75
B22.35
r3.05
L315.75
B322.86
D9.65

NPS 3/4

NPS3/4
O98.55
T12.70
R42.93
X38.10
No. × hole Ø (mm)4 × Ø15.75
Bolt circle Ø (mm)69.85
L252.32
H26.67
B220.83
L15.75
B27.69
r3.05
L315.75
B328.19
D11.18

NPS 1

NPS1
O107.95
T14.22
R50.80
X49.28
No. × hole Ø (mm)4 × Ø15.75
Bolt circle Ø (mm)79.25
L255.63
H33.53
B226.67
L17.53
B34.54
r3.05
L317.53
B335.05
D12.70

NPS 1-1/4

NPS1-1/4
O117.35
T15.75
R63.50
X58.67
No. × hole Ø (mm)4 × Ø15.75
Bolt circle Ø (mm)88.90
L257.15
H42.16
B235.05
L20.57
B43.18
r4.83
L320.57
B343.69
D14.22

NPS 1-1/2

NPS1-1/2
O127.00
T17.27
R73.15
X65.02
No. × hole Ø (mm)4 × Ø15.75
Bolt circle Ø (mm)98.55
L261.98
H48.26
B240.89
L22.35
B49.53
r6.35
L322.35
B350.04
D15.75

NPS 2

NPS2
O152.40
T19.05
R91.95
X77.72
No. × hole Ø (mm)4 × Ø19.05
Bolt circle Ø (mm)120.65
L263.50
H60.45
B252.58
L25.40
B61.98
r7.87
L325.40
B362.48
D17.53

NPS 2-1/2

NPS2-1/2
O177.80
T22.35
R104.65
X90.42
No. × hole Ø (mm)4 × Ø19.05
Bolt circle Ø (mm)139.70
L269.85
H73.15
B262.74
L28.45
B74.68
r7.87
L328.45
B375.44
D19.05

NPS 3

NPS3
O190.50
T23.88
R127.00
X107.95
No. × hole Ø (mm)4 × Ø19.05
Bolt circle Ø (mm)152.40
L269.85
H88.90
B277.98
L30.23
B90.68
r9.65
L330.23
B391.44
D20.57

NPS 3-1/2

NPS3-1/2
O215.90
T23.88
R139.70
X122.17
No. × hole Ø (mm)8 × Ø19.05
Bolt circle Ø (mm)177.80
L271.37
H101.60
B290.17
L31.75
B103.38
r9.65
L331.75
B3104.14
D22.35

NPS 4

NPS4
O228.60
T23.88
R157.23
X134.87
No. × hole Ø (mm)8 × Ø19.05
Bolt circle Ø (mm)190.50
L276.20
H114.30
B2102.36
L33.27
B116.08
r11.18
L333.27
B3116.84
D23.88

NPS 5

NPS5
O254.00
T23.88
R185.67
X163.58
No. × hole Ø (mm)8 × Ø22.35
Bolt circle Ø (mm)215.90
L288.90
H141.22
B2128.27
L36.58
B143.76
r11.18
L336.58
B3144.53
D23.88

NPS 6

NPS6
O279.40
T25.40
R215.90
X192.02
No. × hole Ø (mm)8 × Ø22.35
Bolt circle Ø (mm)241.30
L288.90
H168.40
B2154.18
L39.62
B170.69
r12.70
L339.62
B3171.45
D26.92

NPS 8

NPS8
O342.90
T28.45
R269.75
X246.13
No. × hole Ø (mm)8 × Ø22.35
Bolt circle Ø (mm)298.45
L2101.60
H219.20
B2202.69
L44.45
B221.49
r12.70
L344.45
B3222.25
D31.75

NPS 10

NPS10
O406.40
T30.23
R323.85
X304.80
No. × hole Ø (mm)12 × Ø25.40
Bolt circle Ø (mm)361.95
L2101.60
H273.05
B2254.51
L49.28
B276.35
r12.70
L349.28
B3277.37
D33.27

NPS 12

NPS12
O482.60
T31.75
R381.00
X365.25
No. × hole Ø (mm)12 × Ø25.40
Bolt circle Ø (mm)431.80
L2114.30
H323.85
B2304.80
L55.63
B327.15
r12.70
L355.63
B3328.17
D39.62

NPS 14

NPS14
O533.40
T35.05
R412.75
X400.05
No. × hole Ø (mm)12 × Ø28.45
Bolt circle Ø (mm)476.25
L2127.00
H355.60
B2336.55
L57.15
B359.16
r12.70
L379.25
B3360.17
D41.40

NPS 16

NPS16
O596.90
T36.58
R469.90
X457.20
No. × hole Ø (mm)16 × Ø28.45
Bolt circle Ø (mm)539.75
L2127.00
H406.40
B2387.35
L63.50
B410.46
r12.70
L387.38
B3411.23
D44.45

NPS 18

NPS18
O635.00
T39.62
R533.40
X504.95
No. × hole Ø (mm)16 × Ø31.75
Bolt circle Ø (mm)577.85
L2139.70
H457.20
B2438.15
L68.33
B461.77
r12.70
L396.77
B3462.28
D49.28

NPS 20

NPS20
O698.50
T42.93
R584.20
X558.80
No. × hole Ø (mm)20 × Ø31.75
Bolt circle Ø (mm)635.00
L2144.53
H508.00
B2488.95
L73.15
B513.08
r12.70
L3103.12
B3514.35
D54.10

NPS 22

NPS22
O749.30
T45.97
R641.35
X615.95
No. × hole Ø (mm)20 × Ø35.05
Bolt circle Ø (mm)692.15
L2149.35
H558.80
B2539.75
L79.50
B564.39
r12.70
L3107.95
B3565.15
D60.45

NPS 24

NPS24
O812.80
T47.75
R692.15
X663.45
No. × hole Ø (mm)20 × Ø35.05
Bolt circle Ø (mm)749.30
L2152.40
H609.60
B2590.55
L82.55
B615.95
r12.70
L3111.25
B3615.95
D63.50
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Catalogue dimensions converted using 1 inch = 25.4 mm, rounded to two decimal places. NPS retains its nominal inch designation. Dimension letters correspond to the drawing. Unspecified values remain blank.

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Burgos motorway, exit 36

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