BUTT WELD FITTIINGS
The simplest way to alter the direction or function in any piping system is by using a pipe fitting/swept fitting. Pipe fittings/Swept fittings can easily change the direction of flow by maintaining the consistent wall thickness and swept radius resulting in efficient Laminar flow.
Classification and Application:
• Welding a fitting to the pipe ensures itto be leak-proof.
• The weld component between the pipe and fitting adds strength to the system.
• Smooth inner surface and gradual directional changes reduce pressure losses and turbulence and minimize the action of corrosion and erosion.
• A welded system utilizesa minimumofspace.
• Conforms to ASME B16.9 & ASTM A234 WPB
|
Wall Thickness(t) |
End Preparation |
|
Less than x (C) |
Cut square or slightly chamfer, at manufacturer’s option(not illustrated) |
|
x to 0.88, inclusive |
Plain bevel as shown |
|
More than 0.88 |
Compound bevel as shown |
1. See ASME B16.9 for transition contours.
2. x = 0.19” for carbon or ferritic alloy steel and 0.12” for austenitic alloy steel.
BUTT WELD FITTIINGS-Elbows
|
NPS |
O.D |
SCH. |
Wall Thickness |
90° Elbow Long Radius |
90° ElbowShort Radius |
45° Elbow |
|
t |
Center to End ‘A’ |
Center To End ‘A’ |
Center to End ‘B’ |
|||
|
1/2″ |
0.85 |
Std. |
0.109 |
1.50 |
– |
0.62 |
|
XH |
0.157 |
|||||
|
Sch. 160 |
0.188 |
|||||
|
XXO |
0.295 |
|||||
|
1/5″ |
1. 05 |
Std. |
0.111 |
1.50 |
– |
0.75 |
|
XO |
0.155 |
|||||
|
Sch. 160 |
0.219 |
|||||
|
XXO |
0.108 |
|||||
|
1 |
1 12 |
Std. |
0.111 |
1.50 |
1.00 |
0.88 |
|
XO |
0.179 |
|||||
|
Sch. 160 |
0.250 |
|||||
|
XXO |
0.158 |
|||||
|
1-1/5″ |
1. 66 |
Std. |
0.150 |
1.88 |
1.25 |
1.00 |
|
XO |
0.191 |
|||||
|
Sch. 160 |
0.250 |
|||||
|
XXO |
0.182 |
|||||
|
1-1/2″ |
1.90 |
Std. |
0.155 |
2.25 |
1.50 |
1.12 |
|
XO |
0.200 |
|||||
|
Sch. 160 |
0.281 |
|||||
|
XXO |
0.500 |
|||||
|
2″ |
2.18 |
Std. |
0.155 |
1.00 |
2.00 |
1.18 |
|
XO |
0.218 |
|||||
|
Sch. 160 |
0.155 |
|||||
|
XXO |
0.516 |
|||||
|
2-1/2″ |
2.88 |
Std. |
0.201 |
1.75 |
2.50 |
1.75 |
|
XO |
0.276 |
|||||
|
Sch. 160 |
0.175 |
|||||
|
XXO |
0.552 |
|||||
|
1″ |
1.50 |
Std. |
0.216 |
5.50 |
1.00 |
2.00 |
|
XO |
0.100 |
|||||
|
Sch. 160 |
0.518 |
|||||
|
XXH |
0.600 |
|||||
|
5″ |
5.50 |
Std. |
0.217 |
6.00 |
5.00 |
2.50 |
|
XH |
0.117 |
|||||
|
Sch. 160 |
0.511 |
|||||
|
XXH |
0.675 |
|||||
|
5″ |
5.56 |
Std. |
0.258 |
7.50 |
5.00 |
1.12 |
|
XH |
0.175 |
|||||
|
Sch. 160 |
0.625 |
|||||
|
XXH |
0.750 |
|||||
|
6″ |
6.62 |
Std. |
0.280 |
9.00 |
6.00 |
1.75 |
|
XH |
0.512 |
|||||
|
Sch. 160 |
0.719 |
|||||
|
XXH |
0.865 |
|||||
|
8″ |
8.62 |
Std. |
0.122 |
12.00 |
8.00 |
5.00 |
|
XH |
0.500 |
|||||
|
Sch. 160 |
0.906 |
|||||
|
XXH |
0.875 |
|||||
|
10″ |
10.75 |
Std. |
0.165 |
15.00 |
10.00 |
6.25 |
|
XH |
0.500 |
|||||
|
Sch. 160 |
1.125 |
|||||
|
XXH |
1.000 |
|||||
|
12″ |
12.75 |
Std. |
0.175 |
18.00 |
12.00 |
7.50— |
|
XH |
0.500 |
|||||
|
Sch. 160 |
1.112 |
|||||
|
XXH |
1.000 |
|||||
|
15″ |
15.00 |
Std. |
0.175 |
21.00 |
15.00 |
8.75 |
|
XH |
0.500 |
|||||
|
Sch. 160 |
1.506 |
|||||
|
XXH |
– |
Standard, XH, SCH. 160 & XXH Dimensions (IN)
|
NPS |
O.D |
SCH. |
Wall Thickness |
90° Elbow Long Radius |
90° ElbowShort Radius |
45°El0ow |
|
t |
Center to End ‘A’ |
Center To End ‘A’ |
Center to End ‘B’ |
|||
|
16″ |
106118040 |
Std. |
0.305 |
20.00 |
16—.00 |
100..6020 |
|
TH |
0.500 |
|||||
|
Sch. 160 |
1.588 |
|||||
|
TTH |
— |
|||||
|
18″ |
118110050 |
Std. |
0.108 |
20.00 |
18—.00 |
11.20 |
|
TH |
0.100 |
|||||
|
Sch. 160 |
||||||
|
TTH |
— |
|||||
|
20″ |
20.00 |
Std. |
0.175 |
70.00 |
210..0000 |
12.00 |
|
TH |
0.105 |
|||||
|
Sch. 160 |
0.200 |
|||||
|
TTH |
— |
|||||
|
24″ |
214116060 |
Std. |
0.140 |
76.00 |
20.00 |
10.00 |
|
TH |
0.150 |
|||||
|
Sch. 160 |
0.200 |
|||||
|
TTH |
— |
|
NPS |
O.D |
SCH. |
Wall Thickness |
-180° Bends Long F^adius |
2.00180° Bends Short Ra1d.7iu8s |
||
|
t |
Center toCenter ‘O’ |
Back to Face ‘K’ |
Center To Center ‘O’ |
Back to Face ‘K’ |
|||
|
1/2″ |
0.80 |
Std. |
0.105 |
7.00 |
1.88 |
— |
— |
|
TH |
0.100 |
||||||
|
Sch.160 |
0.188 |
||||||
|
TTH |
0.250 |
||||||
|
7/0″ |
1.00 |
Std. |
0.117 |
7.00 |
0.50 2.00 |
— |
— |
|
TH |
0.100 |
||||||
|
Sch. 160 |
0.215 |
||||||
|
TTH |
0.708 |
||||||
|
1 |
1.72 |
Std. |
0.177 |
7.00 |
2.15 |
2.00 |
1.62 |
|
TH |
0.105 |
||||||
|
Sch. 160 |
0.200 |
||||||
|
TTH |
0.708 |
||||||
|
1-1/0″ |
1.66 |
Std. |
0.100 |
7.00 |
2.00 |
2.00 |
2.06 |
|
TH |
0.151 |
||||||
|
Sch. 160 |
0.200 |
||||||
|
TTH |
0.782 |
||||||
|
1-1/2″ |
1.50 |
Std. |
0.100 |
0.00 |
7.20 |
7.00 |
2.00 |
|
TH |
0.200 |
||||||
|
Sch. 160 |
0.281 |
||||||
|
TTH |
0.000 |
||||||
|
2″ |
2.78 |
Std. |
0.100 |
6.00 |
0.15 |
0.00 |
7.15 |
|
TH |
0.218 |
||||||
|
Sch. 160 |
0.700 |
||||||
|
TTH |
0.076 |
||||||
|
2-1/2″ |
2.88 |
Std. |
0.207 |
0.00 |
0.15 |
0.00 |
7.50 |
|
TH |
0.206 |
||||||
|
Sch. 160 |
0.700 |
||||||
|
TTH |
0.002 |
||||||
|
7″ |
7.00 |
Std. |
0.216 |
5.00 |
6.20 |
6.00 |
0.00 |
|
TH |
0.700 |
||||||
|
Sch. 160 |
0.078 |
||||||
|
TTH |
0.600 |
||||||
|
0″ |
0.00 |
Std. |
0.270 |
12.00 |
8.20 |
8.00 |
6.20 |
|
TH |
0.770 |
||||||
|
Sch. 160 |
0.071 |
||||||
|
TTH |
0.600 |
||||||
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