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Elbows (EN10253.2)
Caps (EN10253.2)

Stub Ends 

Stub Ends

                                                       Dimensions of Stub Ends - ASME B16.9
NPS
OD of Barrel
Long Pattern
Length, F
Short Pattern
Length, F
Radius of
Fillet, R
Diameter of
Lap, G
Max
Min
1/2
22.8
20.5
76
51
3
35
3/4
28.1
25.9
76
51
3
43
1
35
32.6
102
51
3
51
1 ¼
43.6
41.4
102
51
5
64
1 ½
49.9
47.5
102
51
6
73
2
62.4
59.5
152
64
8
92
2 ½
75.3
72.2
152
64
8
105
3
91.3
88.1
152
64
10
127
3 ½
104
100.8
152
76
10
140
4
116.7
113.5
152
76
11
157
5
144.3
140.5
203
76
11
186
6
171.3
167.5
203
89
13
216
8
222.1
218.3
203
102
13
270
10
277.2
272.3
254
127
13
324
12
328
323.1
254
152
13
381
14
359.9
354.8
305
152
13
413
16
411
405.6
305
152
13
470
18
462
456
305
152
13
533
20
514
507
305
152
13
584
22
565
558
305
152
13
641
24
616
609
305
152
13
692
  Notes:
1) Gasket face finish shall be in accordance with ASME B16.5 for raised face flanges.
2) The lap thickness T shall not be less than nominal pipe wall thickness.
3) 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 necessary to increase the length of the stub ends in order to avoid covering the weld with the flange.Such increases in length shall be a matter of agreement between the manufacturer and purchaser.
4) 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.

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