NPT
External and internal threading
External and internal threading
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QUADCUT EXTERNAL - INSERTS
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NPT
External and internal threading |
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Pitch
TPI |
Catalog-
number |
Dimensions
|
uncoated
|
coated
|
Cermet
|
coated
|
||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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l
|
s
|
t
|
h
|
T10
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K20
|
T10C
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K20C
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C20
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T10R
|
K20R
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27
|
12X 27NPT |
12
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2,4
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1,2
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0,70
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x
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x
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x
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18
|
12X 18NPT |
12
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2,4
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1,2
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1,05
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x
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x
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x
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||||
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14
|
12X 14NPT |
12
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2,4
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1,2
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1,37
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x
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x
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x
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x
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11,5
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12X 11,5NPT |
12
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3,6
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1,8
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1,68
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x
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x
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x
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x
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8
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20X 8NPT |
20
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4,6
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2,3
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2,43
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x
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x
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x
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NPT
External threading with small pitches |
|
Pitch
TPI |
Catalog-
number |
Dimensions
|
uncoated
|
coated
|
||||
|---|---|---|---|---|---|---|---|---|
|
l
|
s
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t
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h
|
K20
|
K20C
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K20R
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27
|
12ER 27NPT
|
12
|
2,4
|
0,6
|
0,70
|
x
|
x
|
x
|
 |
 |
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NPT
External threading, multitooth |
|
Pitch
TPI |
Catalog-
number |
Dimensions
|
Z*
|
Radial infeed per pass
|
coated
|
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
l
|
s
|
t
|
h
|
1
|
2
|
3
|
4
|
K20C
|
K20R
|
|||
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11,5
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20ER 11,5NPT2M
|
20
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4,6
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3,4
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1,68
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2
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0,60
|
0,45
|
0,38
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0,25
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x
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x
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8
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20ER 8NPT2M
|
20
|
6,8
|
5,0
|
2,43
|
2
|
0,75
|
0,70
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0,70
|
0,28
|
x
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x
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| * Z = No. of teeth |
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WARNING! Always determine if NPT or |
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NPT and Line Pipe have clearance on the top and bottom of the thread. QuadCut NPT profiles also fit the tolerances for Line Pipe profiles. |
NPTF Dryseal gives a tight fit. This is accomplished when the pipe compo- nents are fitted together, as the top of the thread is deformed by the corress- ponding thread root. |
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• = Stock Standard x = Limited
Stock
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