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ASME B16.11 Plug

The ASME B16.11 plug, like a cap, is designed to close off the end of a run of pipe. It is manufactured for screwed fittings with male threads and are screwed into the end of a pipe to create a seal. As illustrated in the drawing above, plugs can be further classified according to the head style: square head plug; hex head plug; round head plug. ASME B16.11 threaded plugs are available in sizes 1/8″ through 4″ and are not identified by class designation. They may be used for pressure ratings up to Class 6000.
ASME B16.11 Forged Fittings (SW & THD)
90° Elbow 45° Elbow Cross
Tee Coupling Half Coupling
Boss Cap Couplet
Street Elbow* Plug* Bushing*
*Click to view dimensions and masses of ASME B16.11 fittings.

 

Dimensions & Masses

 

NPS A
mm
B
mm
C
mm
Mass
Kg
1/8" 10 6 7.15 0.01
1/4" 11 6 9.55 0.02
3/8" 13 8 11.11 0.03
1/2" 14 10 14.29 0.05
3/4" 16 11 15.88 0.09
1" 19 13 20.64 0.15
1-1/4" 21 14 23.81 0.27
1-1/2" 21 16 28.58 0.40
2" 22 18 33.27 0.68
2-1/2" 27 19 38.10 1.02
3" 28 21 42.86 1.47
4" 32 25 63.50 3.70
*Dimensions A, B, C and masses for ASME B16.11 square head plugs.

 

 

NPS A
mm
H
mm
F
mm
Mass
kg
1/8" 10 6 11.11 0.02
1/4" 11 6 15.88 0.03
3/8" 13 8 17.46 0.05
1/2" 14 8 22.23 0.08
3/4" 16 10 26.99 0.14
1" 19 10 34.93 0.25
1-1/4" 21 14 44.45 0.51
1-1/2" 21 16 50.80 0.64
2" 22 18 63.50 1.06
2-1/2" 27 19 76.20 1.78
3" 28 21 88.90 2.75
4" 32 25 117.48 6.20
*Dimensions A, H, F and masses for ASME B16.11 hex head plugs.

 

 

NPS A
mm
D
mm
E
mm
Mass
kg
1/8" 10 35 10 0.03
1/4" 11 41 14 0.05
3/8" 13 41 18 0.08
1/2" 14 44 21 0.12
3/4" 16 44 27 0.19
1" 19 51 33 0.34
1-1/4" 21 51 43 0.54
1-1/2" 21 51 48 0.74
2" 22 64 60 1.45
2-1/2" 27 70 73 2.22
3" 28 70 89 3.43
4" 32 76 114 6.30
*Dimensions A, D, E and masses for ASME B16.11 round head plugs.
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