Metric 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
1/29514.338
3/411515.948
112517.554
1-1/413520.764
1-1/215522.370
216525.484
2-1/219028.6100
321031.8117
3-1/223035133
427538.1152
533044.5189
635547.7222
842055.6273
1051063.5343
1256066.7400
NPSOtfX
1460569.9432
1668576.2495
1874582.6546
2081588.9610
24940101.6718

Weld Neck Flange Dimensions

Weld Neck Flange Dimensions

NPSAYB
1/221.352BY P
3/426.757BY P
133.462BY P
1-1/442.267BY P
1-1/248.370BY P
260.373BY P
2-1/27379BY P
388.983BY P
3-1/2101.686BY P
4114.3102BY P
5141.3114BY P
6168.3117BY P
8219.1133BY P
10273152BY P
12323.8156BY P
NPSAYB
14355.6165BY P
16406.4178BY P
18457184BY P
20508190BY P
24610203BY P

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
4215.9187/8
5266.71-1/881
6292.11-1/8121
8349.21-1/4121-1/8
10431.81-3/8161-1/4
12489.01-3/8201-1/4
NPSBCDBHDBOLTSBD
14527.01-1/2201-3/8
16603.21-5/8201-1/2
18654.01-3/4201-5/8
20723.91-3/4241-5/8
24838.22241-7/8

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
4145140145
5165160165
6170165170
8190185195
10215210215
12220215220
NPSSBL RFYSBL RJMBL RF
14235230235
16255250255
18275265275
20285280290
24330325335

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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