Home > Products > Fittings > Stub end >
Stub end

Lap join stub end

Lap join stub end

The Lap joint stub end is the fittings that are used in place of welded flanges when the support of rotating back up flanges is required.

Lap join stub end

Lap Joints also named stub Ends and vanstone flared laps, it is used in place of welded flanges where rotating back up flanges are 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
10
12

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.
Lap Joints are consisted of three series.

Types of stub end

  • Type A & B Stub Ends are made similar to forging pipe fittings such as elbows and tees.
  • Type C Stub Ends are made by customized dimensions.


There are three different types of stub ends, Type A, B and C. Type A stub ends are machined to fit in a standard lap joint backing flange

We offer stub ends at highly competitive prices.

Lap Joint Stub End – The ‘mated’ pair to a Lap Joint Flange. Stub Ends are Fittings used in place of welded flanges where rotating back up flanges are desired. Stub Ends are typically manufactured by two methods, Type A & Type B and are available in two standard lengths , long (ANSI) or short (MSS) pattern.

Features:
Manufacturing standards of stub end:
Specifications:
Technical Specifications:

Usage:
Petroleum, Chemical, Power, Gas, Metallurgy, Ship-building, Construction, ect.

Lap Joint Stub End

Using stub ends allows sections of the line to be opened for cleaning, inspection, or quick replacement etc, without the need to re-weld.

Specifications: 

English Inglés SpanishEspañol
Weldable Components

Stainless steel pipe fittings

Sunny Steel Blog
Recommended products
Pipe fittings
Pipe fittings are used to connect pipes.
Welded steel pipes Weld steel pipes
We produce an extensive selection of weld steel pipe
Welded steel pipes Anti corrosion pipe
Anti-corrosio pipe is processed through the preservation
Ceramic-Lined Pipes
from a single spool piece to complete piping systems.
Pipe flanges
Pipe flange are a method of connecting pipes, valves.
Pipe Fitting Accessories
We are passionate in Stub Ends, Bolt Sets, Fasteners


About Sunny Steel

Our team are highly trained and experienced in servicing and producing all types of steel supplies. Whether you've got a large construction project, or need parts for industrial machinery, our team of steel fabrication consultants will ensure that your project is provided with the parts you need, when you need them.

Link exchange