Technical
152
Dixon Fire 2014
US: 877.712.6179 Canada: 800.786.9697 • dixonvalve.com
Technical
P
Thread Dimensions
Normal Engagement Length of NPT Thread
Nominal Dimensions of Standard Threads
2'0 2
utside 'iameter of the 0ale
,') ,
nside 'iameter of the )emale
TP, Threads Per ,nch
Size Pipe
2'
Tapered
Threads
Straight Threads
NPT BSPTr
NPSH
NPSM
NST (NH)
BSPP
TPI
TPI
TPI
2'0
(
max)
,')
(
min)
TPI
2'0
(
max)
,')
(
min)
TPI 2'0
(
max)
,')
(
min)
TPI 2'0
(
max)
,')
(
min)
1 "
1 "
"
1 2"
"
1"
1 1 "
1 1 2"
2"
2 1 2"
"
"
1 2"
5"
6"
"
10"
12"
1
1 1
1
1
2
2
2
2
1
12
2
1
1
1
1
11
11
11
11
2
1
1
1
1
11
11
11
11
11
11
11
11
11
1
1
11
11
11
11
2
1
1 2 1
1
1
2 2
2
1 1 21
1
1
2 2
2
2
1
1
1
1
11
11
11
11
2
2
2
1
1 2
1
1
2 1
2 1
2
1 2 1
1
1
2 2
2
2
6
1
1
1
2
1
2
2
1 22
1 22
1
2 1
111
11
2
2 2
11
11
11
11
11
11
11
1
2
1 1
1
1
1 2
2
2
1 1
1
1
2 2 1
2
GHT ( ") 1 2 2'0 11 1 2 TP,
Note )emale NPT (Tapered Pipe) thread is not availaEle on hose swivel nuts
•
'
imensions given do not allow for variations in tapping or threading
Thread Size
'
imension $
1 "
1 "
"
1 2"
"
1"
1 1 "
1 1 2"
2"
2 1 2"
"
"
5"
6"
"
10"
12"
1 "
"
"
1 2"
1 "
11 1 "
11 1 "
11 1 "
"
1 1 "
1"
1 1 "
1 1 "
1 1 "
1 1 "
1 "
1 "