Metric Dimensions of Lap Joint Flange Rating 400 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
1-1/413520.764
1-1/215522.370
216525.484
2-1/219028.6100
321031.8117
3-1/223035133
425535146
528038.1178
632041.3206
838047.7260
1044554321
1252057.2375
NPSOtfX
1458560.4425
1665063.5483
1871066.7533
2077569.9587
2491576.2702

Lap Joint Flange Dimensions

Lap Joint Flange Dimensions

NPSYBr
1/22222.923.6
3/42528.229
12734.935.8
1-1/42943.744.4
1-1/2325050.6
23762.563.5
2-1/24175.476.2
34691.492.2
3-1/249104.1104.9
451116.811
554144.511
657171.413
868222.213
10102277.413
12108328.213
NPSYBr
14117360.213
16127411.213
18137462.313
20146514.413
2415961613

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
3-1/2184.2187/8
4200.0187/8
5235.0187/8
6269.91127/8
8330.01-1/8121
10387.41-1/4161-1/8
12450.81-3/8161-1/4
NPSBCDBHDBOLTSBD
14514.41-3/8201-1/4
16571.51-1/2201-3/8
18628.61-1/2241-3/8
20685.81-5/8241-1/2
24812.81-7/8241-3/4

Flange Drilling Template

Flange Drilling Template

NPSSBL RFYSBL RJMBL RF
1/2757075
3/4908590
1908590
1-1/4959095
1-1/2110100110
2110100110
2-1/2120115120
3125120125
3-1/2140135140
4140135140
5145135145
6150145150
8170165170
10190185190
12205195205
NPSSBL RFYSBL RJMBL RF
14210205210
16220215220
18230220230
20240235250
24265260280

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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