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Credibility ,What Is Lap Joint Stub End ?
Lap joint stub end also called Lap Joint and Vanstone Flared Lap. It is fitting used in place of welded flangewhere rotating back up flange is desired.
Nominal Pipe Size
|
Outside Diameter at Bevel |
Length
|
Radius of Fillet |
Diameter of Lap |
|
A
|
B
|
||||
NPS
|
D
|
L
|
R
|
G
|
|
1/2
3/4 1 |
21.3
26.7 33.4 |
51
51 51 |
3.0
3.0 3.0 |
0.8
0.8 0.8 |
35
43 51 |
11/4
11/2 2 |
42.2
48.3 60.3 |
51
51 64 |
5.0
6.0 8.0 |
0.8
0.8 0.8 |
64
73 92 |
21/2
3 31/2 |
73.0
88.9 101.6 |
64
64 76 |
8.0
10.0 10.0 |
0.8
0.8 0.8 |
106
127 140 |
4
5 6 |
114.3
141.3 168.3 |
76
76 89 |
11.0
11.0 13.0 |
0.8
1.6 1.6 |
157
185 218 |
8 |
219.1
273.0 323.8 |
102
127 152 |
13.0
13.0 13.0 |
1.6
1.6 1.6 |
270
324 381 |
14
16 18 |
355.6
406.4 457.0 |
152
152 152 |
13.0
13.0 13.0 |
1.6
1.6 1.6 |
413
470 533 |
20
22 24 |
508.0
559.0 610.0 |
152
152 152 |
13.0
13.0 13.0 |
1.6
-- 1.6 |
584
641 692 |
●Minimum lap thickness shall not be less than nominal wall thickness. ●Contact faces of stub ends shall have a concentric serration or spiral according to the purchaser's requirements. ●These lengths and radius apply for schedule 40s or thinner stainless steel pipes. ●Radius of fillet B is only effective to MSS SP-43 lap joint stub ends. |
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Yaang Pipe Industry Co., Ltd. is an international supplier of piping solutions for flange, butt welding fittings, socket welding fittings and threaded fittings. Our products are widely used in different industrial fields, including oil and gas, chemical industry, petrochemical industry, power plant, pulp and paper industry, environmental and water conservancy engineering, engineering projects, etc.