Metric Dimensions of Lap Joint Flange Rating 900 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
1/212022.338
3/413025.444
115028.652
1-1/416028.664
1-1/218031.870
221538.1105
2-1/224541.3124
324038.1127
429044.5159
535050.8190
638055.6235
847063.5298
1054569.9368
1261079.4419
1464085.8451
NPSOtfX
1670588.9508
18785101.6565
20855108622
241040139.7749

Lap Joint Flange Dimensions

Lap Joint Flange Dimensions

NPSYBr
1/23222.93
3/43528.23
14134.93
1-1/44143.75
1-1/244506
25762.58
2-1/26475.48
35491.410
470116.811
579144.411
686171.413
8114222.213
10127277.413
12143328.213
14156360.213
NPSYBr
16165411.213
18190462.313
20210514.413
2426761613

Templates for drilling of bolt holes

Flange Drilling Template

Flange Drilling Template

NPSBCDBHDBOLTSBD
1/282.67/843/4
3/488.97/843/4
1101.6147/8
1-1/4111.1147/8
1-1/2123.81-1/841
2165.1187/8
2-1/2190.51-1/881
3190.5187/8
4235.01-1/481-1/8
5279.41-3/881-1/4
6317.51-1/4121-1/8
8393.71-1/2121-3/8
10469.91-1/2161-3/8
12533.41-1/2201-3/8
14558.81-5/8201-1/2
NPSBCDBHDBOLTSBD
16616.01-3/4201-5/8
18685.82201-7/8
20749.32-1/8202
24901.72 5/8202-1/2

Flange Drilling Template

Flange Drilling Template

NPSSBL RFYSBL RJMBL RF
1/2110100110
3/4115110115
1125120125
1-1/4125120125
1-1/2140135140
2145140145
2-1/2160150160
3145140145
4170165170
5190185190
6190185195
8220215220
10235230235
12255250255
14275265280
NPSSBL RFYSBL RJMBL RF
16285280290
18325320335
20350345360
24440430455

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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