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

Weld Neck Flange Dimensions
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Weld Neck Flange Dimensions
Weld Neck Flange Dimensions
Metric Dimensions
15030040060090015002500
Inch Dimensions
15030040060090015002500
NPSO
Flange OD
Ttf
Thickness
X
Hub Dia
A
Hub Dia
Y
Length
B
Bore Dia
1/213530.24321.373BY P
3/414031.85126.779BY P
1160355733.489BY P
1-1/418538.17342.295BY P
1-1/220544.57948.3111BY P
223550.99560.3127BY P
2-1/226557.211473143BY P
330566.713388.9168BY P
435576.2165114.3190BY P
542092.1203141.3229BY P
6485108235168.3273BY P
8550127305219.1318BY P
10675165.1375273419BY P
12760184.2441323.8464BY P
NPSO
Flange OD
Ttf
Thickness
X
Hub Dia
A
Hub Dia
Y
Length
B
Bore Dia

Templates for drilling of bolt holes

Flange Drilling Template
Flange Drilling Template
NPSBCD
Bolt Circle Dia.
BHD
Bolt Hole Dia
BOLTS
Number of Bolts
BD
Dia. Of Bolt
SBL RF
Stud Bolt Length (RF)
SBL RJ
Stud Bolt Length (RJ)
MBL RF
Machine Bolt Length (RF)
1/288.97/843/4120115120
3/495.27/843/4125120125
1108.0147/8140135140
1-1/4130.21-1/841150145150
1-1/2146.01-1/441-1/8170165170
2171.41-1/881180170180
2-1/2196.81-1/481-1/8195190205
3228.61-3/881-1/4220215230
4273.01-5/881-1/2255250260
5323.81-7/881-3/4300290310
6368.32-1/882345335355
8438.22-1/8122380375395
10539.82-5/8122-1/2490485510
12619.12-7/8122-3/4540535560
NPSBCD
Bolt Circle Dia.
BHD
Bolt Hole Dia
BOLTS
Number of Bolts
BD
Dia. Of Bolt
SBL RF
Stud Bolt Length (RF)
SBL RJ
Stud Bolt Length (RJ)
MBL RF
Machine Bolt Length (RF)
Metric Dimensions
15030040060090015002500
Inch Dimensions
15030040060090015002500

General Notes

Dimensions are in millimeters, except for diameters of bolts and bolt holes, which are in inch units.