Maximum Cutter Sizes Hot Tapping through Gate Valves
Gate Valve for Hot Tapping

Note:
The table below is for reference only.
If you plan to make a Hot Tap,
let the supplier confirm the maximum bore of the valve.

NPS Class Cutter
Sizes
inch
Cutter
Sizes
mm
2 150 1.3/8 34.92
300 31.75
600 1 25.4
150 1.13/16 46.04
300 1.11/16 42.86
600 1.3/8 34.93
3 150 63.5
300
600 2.9/32 57.94
4 150 3.17/32 89.69
300
600 88.9
6 150 5.15/32 138.91
300
600 5.19/32 142.08
8 150 7.3/8 187.33
300
600
10 150 9.11/32 237.33
300
600 234.95
NPS Class Cutter
Sizes
inch
Cutter
Sizes
mm
12 150 11.9/32 286.54
300
600 11.1/8 282.58
14 150 12.3/4 323.85
300
600 12.7/16 315.91
16 150 14.5/16 363.54
300
600
18 150 15.1/16 382.59
300
600
20 150 17 431.8
300
600
24 150 21 533.4
300
600 20.3/4 527.05
NPS Class Cutter
Sizes
inch
Cutter
Sizes
mm

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