Metric Dimensions of Blind Flange Rating 1500 as per ASME B16.5

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
1/212022.3
3/413025.4
115028.6
1-1/416028.6
1-1/218031.8
221538.1
2-1/224541.3
326547.7
431054
537573.1
639582.6
848592.1
10585108
12675123.9
14750133.4
NPSOtf
16825146.1
18915162
20985177.8
241170203.2

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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
3203.21-1/481-1/8
4241.3181-1/4
5292.11-3/881-1/2
6317.51-1/2121-3/8
8393.71-3/4121-3/8
10482.62121-7/8
12571.52-1/8162
14635.02-3/8162-1/4
NPSBCDBHDBOLTSBD
16704.82-5/8162-1/2
18774.72-7/8162-3/4
20831.83-1/8163
24990.63-5/8163-1/2

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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
3180170180
4195190195
5250240250
6260255265
8290285325
10335330345
12375370385
14405400425
NPSSBL RFYSBL RJMBL RF
16445440470
18495490525
20540535565
24615610650

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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.