Metric Dimensions of Lap Joint Flange Rating 300 as per ASME B16.5

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Lap Joint Flange Dimensions

Lap Joint Flange Dimensions

Metric Dimensions
150 300 400 600 900 1500 2500
Inch Dimensions
150 300 400 600 900 1500 2500

NPSOtfX
1/29514.338
3/411515.948
112517.554
1-1/413519.164
1-1/215520.770
216522.384
2-1/219025.4100
321028.6117
3-1/223030.2133
425531.8146
528035178
632036.6206
838041.3260
1044547.7321
1252050.8375
NPSOtfX
1458554425
1665057.2483
1871060.4533
2077563.5587
2491569.9702

Lap Joint Flange Dimensions

Lap Joint Flange Dimensions

NPSYBr
1/22222.93
3/42528.23
12734.93
1-1/42743.75
1-1/230506
23362.58
2-1/23875.48
34391.410
3-1/244104.110
448116.811
551144.411
652171.413
862222.213
1095277.413
12102328.213
NPSYBr
14111360.213
16121411.213
18130462.313
20140514.413
2415261613

Templates for drilling of bolt holes

Flange Drilling Template

Flange Drilling Template

NPSBCDBHDBOLTSBD
1/266.75/841/2
3/482.63/445/8
188.93/445/8
1-1/498.43/445/8
1-1/2114.37/843/4
2127.03/485/8
2-1/2149.27/883/4
3168.37/883/4
3-1/2184.27/883/4
4200.07/883/4
5235.07/883/4
6269.97/8123/4
8330.21127/8
10387.41-1/8161
12450.81-1/4161-1/8
NPSBCDBHDBOLTSBD
14514.41-1/4201-1/8
16571.51-3/8201-1/4
18628.61-3/8241-1/4
20685.81-3/8241-1/4
24812.81-5/8241-1/2

Flange Drilling Template

Flange Drilling Template

NPSSBL RFYSBL RJMBL RF
1/2657555
3/4759065
1759065
1-1/4859570
1-1/29010075
29010075
2-1/210011585
311012090
3-1/211012595
411512595
5120135110
6120140110
8140150120
10160170140
12170185145
NPSSBL RFYSBL RJMBL RF
14180190160
16190205165
18195210170
20205220185
24230255205

Metric Dimensions
150 300 400 600 900 1500 2500
Inch Dimensions
150 300 400 600 900 1500 2500

General Notes

Dimensions are in millimeters, except for diameters of bolts and bolt holes, which are in inch units.

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