Inch Dimensions of Weld Neck Flange Rating 600 as per ASME B16.5

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Weld Neck Flange Dimensions

Weld Neck Flange Dimensions

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

NPSOtfX
1/23.750.561.50
3/44.620.621.88
14.880.692.12
1-1/45.250.812.50
1-1/26.120.882.75
26.501.003.31
2-1/27.501.123.94
38.251.254.62
3-1/29.001.385.25
410.751.506.00
513.001.757.44
614.001.888.75
816.502.1910.75
1020.002.5013.50
1222.002.6215.75
NPSOtfX
1423.752.7517.00
1627.003.0019.50
1829.253.2521.50
2032.003.5024.00
2437.004.0028.25

Weld Neck Flange Dimensions

Weld Neck Flange Dimensions

NPSAYB
1/20.842.06BY P
3/41.052.25BY P
11.322.44BY P
1-1/41.662.62BY P
1-1/21.902.75BY P
22.382.88BY P
2-1/22.883.12BY P
33.503.25BY P
3-1/24.003.38BY P
44.504.00BY P
55.564.50BY P
66.634.62BY P
88.635.25BY P
1010.756.00BY P
1212.756.12BY P
NPSAYB
1414.006.50BY P
1616.007.00BY P
1818.007.25BY P
2020.007.50BY P
2424.008.00BY P

Templates for drilling of bolt holes

Flange Drilling Template

Flange Drilling Template

NPSBCDBHDBOLTSBD
1/22.625/841/2
3/43.253/445/8
13.503/445/8
1-1/43.883/445/8
1-1/24.507/843/4
25.003/485/8
2-1/25.887/883/4
36.627/883/4
3-1/27.25187/8
48.50187/8
510.501-1/881
611.501-1/8121
813.751-1/4121-1/8
1017.001-3/8161-1/4
1219.251-3/8201-1/4
NPSBCDBHDBOLTSBD
1420.751-1/2201-3/8
1623.751-5/8201-1/2
1825.751-3/4201-5/8
2028.501-3/4241-5/8
2433.002241-7/8

Flange Drilling Template

Flange Drilling Template

NPSSBL RFYSBL RJMBL RF
1/23.002.753.00
3/43.503.253.50
13.503.253.50
1-1/43.753.503.75
1-1/24.254.004.25
24.254.004.25
2-1/24.754.504.75
35.004.755.00
3-1/25.505.255.50
45.755.505.75
56.506.256.50
66.756.506.75
87.507.257.75
108.508.258.50
128.758.508.75
NPSSBL RFYSBL RJMBL RF
149.259.009.25
1610.009.7510.00
1810.7510.5010.75
2011.2511.0011.50
2413.0012.7513.25

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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