Metric Dimensions of Blind Flange Rating 2500 as per ASME B16.5

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Blind Flange Dimensions

Blind Flange Dimensions

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

NPSOtf
1/213530.2
3/414031.8
116035
1-1/418538.1
1-1/220544.5
223550.9
2-1/226557.2
330566.7
435576.2
542092.1
6485108
8550127
10675165.1
12760184.2
NPSOtf

Templates for drilling of bolt holes

Flange Drilling Template

Flange Drilling Template

NPSBCDBHDBOLTSBD
1/288.97/843/4
3/495.27/843/4
1108.0147/8
1-1/4130.21-1/841
1-1/2146.01-1/441-1/8
2171.41-1/881
2-1/2196.81-1/481-1/8
3228.61-3/881-1/4
4273.01-5/881-1/2
5323.81-7/881-3/4
6368.32-1/882
8438.22-1/8122
10539.82-5/8122-1/2
12619.12-7/8122-3/4
NPSBCDBHDBOLTSBD

Flange Drilling Template

Flange Drilling Template

NPSSBL RFYSBL RJMBL RF
1/2120115120
3/4125120125
1140135140
1-1/4150145150
1-1/2170165170
2180170180
2-1/2195190205
3220215230
4255250260
5300290310
6345335355
8380375395
10490485510
12540535560
NPSSBL RFYSBL RJMBL RF

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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