Dimensions Butt Weld
Caps ASME B16.9
safety
materials
O.D.
Length
Length
D
H
H(1)
1/2
21.3
25
25
3/4
26.7
25
25
1
33.4
38
38
1.1/4
42.2
38
38
1.1/2
48.3
38
38
2
60.3
38
44
2.1/2
73
38
51
3
88.9
51
64
3.1/2
101.6
64
76
4
114.3
64
76
5
141.3
76
89
6
168.3
89
102
8
219.1
102
127
10
273
127
152
12
323.8
152
178
14
355.6
165
191
16
406.4
178
203
18
457
203
229
20
508
229
254
22
559
254
254
MENU FITTINGS
NPS
societies
flanges
bolts
documents
fittings
gaskets
specials
civil
pipes
valves
equipment
steel
steam
others
Question and Answer
Piping related Abbreviations
Making the environment better
Advertisements
24
610
267
305
26
660
267
-
28
711
267
-
30
762
267
-
32
813
267
-
34
864
237
-
36
914
267
-
38
965
305
-
40
1016
305
-
42
1067
305
-
44
1118
343
-
46
1168
343
-
48
1219
343
-
General notes..
Dimensions are in millimeters unless otherwise
indicated.
Wall thickness (t) must be specified by customer.
The shape shall be ellipsoidal and shall conform to
the requirements given in the ASME Boiler and
Pressure Vessel Code.
Length (H) applies for thickness not exceeding
that given in column "Wall Thickness" for Length,
H.
Length (H1) applies for thickness greater than that
given in column "Wall Thickness" for NPS 24 and
smaller. For NPS 26 and larger, length H1 shall be
by agreement between the manufacturerand
purchaser.
Dimensional Tolerances of End Caps ASME B16.9
Nominal Pipe Size
1/2 to 2.1/2
3 to 3.1/2
4
Outside Diameter
+ 1.6
at Bevel (D)
- 0.8
Inside Diameter at End
5 to 8
1.6
1.6
0.8
1.6
1.6
1.6
Overall Length (H)
3
3
3
6
Nominal Pipe Size
10 to 18
20 to 24
26 to 30
32 to 48
Outside Diameter
+4
+ 6.4
+ 6.4
+ 6.4
at Bevel (D)
- 3.2
- 4.8
- 4.8
- 4.8
+ 2.4
- 1.6
MENU FITTINGS
Inside Diameter at End
3.2
4.8
Overall Length (H)
6
6
Wall Thickness (t)
+ 6.4
+ 6.4
- 4.8
- 4.8
10
10
Not less than 87.5% of Nominal Wall Thickness
Dimensional tolerances are in millimeters unless
otherwise indicated and are equal ± except as noted.
Note..
MSS SP-43 only covers stainless steel buttweld fittings
made for use with Schedule 5S and 10S pipe and Stub
Ends suitable for use with Schedule 40S pipe, as
defined in ASME B36.19. The dimensions and
dimensional tolerances defined in MSS SP-43 are
substantially the same as those in ASME B16.9
specifications from NPS 1/2 - NPS 24. Except with
regard to the outside diameter at the bevel.
Weights of Buttweld Caps
NPS
STD
XS
SCH 160
XXS
1
0.09
0.14
0.18
0.23
1.1/4
0.14
0.18
0.23
0.34
1.1/2
0.18
0.23
0.27
0.41
2
0.27
0.34
0.57
0.68
2.1/2
0.41
0.45
0.79
1.13
3
0.68
0.79
1.32
1.81
3.1/2
0.91
1.13
-
2.72
4
1.13
1.36
2.68
3.4
5
2.04
2.49
4.54
5.44
6
2.95
4.08
6.8
8.16
8
5.44
7.26
14.06
13.61
10
9.07
11.34
25.85
-
MENU FITTINGS
12
13.61
16.33
43.09
-
14
16.33
20.41
-
-
16
18.14
24.49
-
-
18
24.49
32.66
-
-
20
34.02
39.01
-
-
22
42.64
56.7
-
-
24
43.54
58.97
-
-
26
53.98
72.12
-
-
30
78.02
103.87
-
-
All weights are in kilograms and approximated or
estimated.
Buttweld Fitting Weights
ASME buttweld fitting specifications do not specify
weights for fittings. Weights quoted in the table on this
page are based on manufacturers information and
should be considered as approximate and provided as a
guide only (fitting weights can vary considerably
between manufacturers due to differences in
construction).
Weights in these tables are taken from
Hackney Ladish, Inc.
Hackney Ladish, Inc. is one of the largest and most
versatile fitting producers in the world. Hackney Ladish,
Inc. is headquartered in Dallas, TX and operates 2
facilities containing 380,000 square feet of
manufacturing.
Explore the World of Piping
MENU FITTINGS
© Werner Sölken 2008 - 2023
All rights reserved.
www.wermac.org uses Google Analytics
I must be old. I still believe in respect.
MENU FITTINGS