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ASME B16.9 Lap Joint Stub Ends

ASME B16.9 ss316 lap joint stub ends.

ASME B16.9 ss316 lap joint stub ends.

Dimensions of ASME B16.9 Lap Joint Stub Ends

The technical drawing of ASME B16.9 lap joint stub ends

The technical drawing of ASME B16.9 lap joint stub ends

Nominal SizeOutside Diameter of BarrelLong Pattern
Length, F
Short Pattern
Length, F
Radius of
Fillet, R
Diameter
of Lap, G
NPSMax.
mm.
in.
Min.
mm.
in.
mm.
in.
mm.
in.
mm.
in.
mm.
in.
1/222.8
0.896
20.5
0.809
76
3.00
51
2.00
3
0.12
35
1.38
3/428.1
1.106
25.9
1.019
76
3.00
51
2.00
3
0.12
43
1.69
135.0
1.376
32.6
1.284
102
4.00
51
2.00
3
0.12
51
2.00
1 1/443.6
1.716
41.4
1.629
102
4.00
51
2.00
5
0.19
64
2.50
1 1/249.9
1.965
47.5
1.869
102
4.00
51
2.00
6
0.25
73
2.88
262.4
2.456
59.5
2.344
152
6.00
64
2.50
8
0.31
92
3.62
2 1/275.3
2.966
72.2
2.844
152
6.00
64
2.50
8
0.31
105
4.12
391.3
3.596
88.1
3.469
152
6.00
64
2.50
10
0.38
127
5.00
3 1/2104.0
4.096
100.8
3.969
152
6.00
76
3.00
10
0.38
140
5.50
4116.7
4.593
113.5
4.469
152
6.00
76
3.00
11
0.44
157
6.19
5144.3
5.683
140.5
5.532
203
8.00
76
3.00
11
0.44
186
7.31
6171.3
6.743
167.5
6.594
203
8.00
89
3.50
13
0.50
216
8.50
8222.1
8.743
218.3
8.594
203
8.00
102
4.00
13
0.50
270
10.62
10277.2
10.913
272.3
10.719
254
10.00
127
5.00
13
0.50
324
12.75
12328.0
12.913
323.1
12.719
254
10.00
152
6.00
13
0.50
381
15.00
14359.9
14.170
354.8
13.969
305
12.00
152
6.00
13
0.50
413
16.25
16411.0
16.180
405.6
15.969
305
12.00
152
6.00
13
0.50
470
18.50
18462.0
18.190
456.0
17.969
305
12.00
152
6.00
13
0.50
533
21.00
20514.0
20.240
507.0
19.969
305
12.00
152
6.00
13
0.50
584
23.00
22565.0
22.240
558.0
21.969
305
12.00
152
6.00
13
0.50
641
25.25
24616.0
24.240
609.0
23.969
305
12.00
152
6.00
13
0.50
692
27.25
*All dimensions are furnished in both SI(metric) units and US Customary units.
*Gasket face finish shall be in accordance with ASME B16.5 for raised face flanges.
*The lap thickness, T, shall not be less than nominal pipe wall thickness.
*When short pattern stub ends are used with larger flanges in Classes 300 and 600, with most sizes in Classes 900 and higher, and when long pattern stub ends are used with larger flanges in Classes 1500 and 2500, it may be necessary to increase the length of the stub ends in order to avoid covering the weld with the flange.
*When special facings such as tongue and groove, male and female, etc., are employed, additional lap thickness must be provided and such additional thickness shall be in addition to (not included in) the basic length, F.
*Dimensions of “Radius of Fillet, R” conform to the radius established for lap joint flanges in ASME B16.5.
*Dimensions of “Diameter of Lap, G” conform to standard machined facings shown in ASME B16.5.

View more specification of ASME B16.9.

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