Inch 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
1/24.750.881.50
3/45.121.001.75
15.881.122.06
1-1/46.251.122.50
1-1/27.001.252.75
28.501.504.12
2-1/29.621.624.88
39.50NA5.00
411.50NA6.25
513.75NA7.50
615.00NA9.25
818.50NA11.75
1021.50NA14.50
1224.00NA16.50
1425.25NA17.75
NPSOtfX
1627.75NA20.00
1831.00NA22.25
2033.75NA24.50
2441.00NA29.50

Lap Joint Flange Dimensions

Lap Joint Flange Dimensions

NPSYBr
1/21.250.900.12
3/41.381.110.12
11.621.380.12
1-1/41.621.720.19
1-1/21.751.970.25
22.252.460.31
2-1/22.502.970.31
32.123.600.38
42.754.600.44
53.125.690.44
63.386.750.50
84.508.750.50
105.0010.920.50
125.6212.920.50
146.1214.180.50
NPSYBr
166.5016.190.50
187.5018.200.50
208.2520.250.50
2410.5024.250.50

Templates for drilling of bolt holes

Flange Drilling Template

Flange Drilling Template

NPSBCDBHDBOLTSBD
1/23.257/843/4
3/43.507/843/4
14.00147/8
1-1/44.38147/8
1-1/24.881-1/841
26.50187/8
2-1/27.501-1/881
37.50187/8
49.251-1/481-1/8
511.001-3/881-1/4
612.501-1/4121-1/8
815.501-1/2121-3/8
1018.501-1/2161-3/8
1221.001-1/2201-3/8
1422.001-5/8201-1/2
NPSBCDBHDBOLTSBD
1624.251-3/4201-5/8
1827.002201-7/8
2029.502-1/8202
2435.502-5/8202-1/2

Flange Drilling Template

Flange Drilling Template

NPSSBL RFYSBL RJMBL RF
1/24.254.004.25
3/44.504.254.50
15.004.755.00
1-1/45.004.755.00
1-1/25.505.255.50
25.755.505.75
2-1/26.256.006.25
35.755.505.75
46.756.506.75
57.507.257.50
67.507.257.75
88.758.508.75
109.259.009.25
1210.009.7510.00
1410.7510.5011.00
NPSSBL RFYSBL RJMBL RF
1611.2511.0011.50
1812.7512.5013.25
2013.7513.5014.25
2417.2517.0018.00

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

General Notes

Dimensions are in inches.

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