How to get high quality pipe olets?

What are pipe olets?

Pipe olets are fittings which provide an outlet from a larger pipe to a smaller one (or one of the same size). The main pipe onto which the branch connection is welded is usually called the Run or Header size. The pipe to which the branch connection provides a channel is usually called the Branch or Outlet size. Branch connections are in all sizes, types, bores, and classes, in a wide range of stainless steel, chrome-moly, and other alloys.

Types of pipe olets

20180110171919 95462 - How to get high quality pipe olets?WELDOLET® is the most common of all branch connections, and is welded onto the outlet pipe. The ends are bevelled to facilitate this process, and therefore the weldolet is considered a butt-weld fitting. Weldolet’s are designed to minimize stress concentrations and provide integral reinforcement. Weldolet makes 90-deg branch, full-size or reducing, on straight pipe. Closer manifolding is possible than with tees. Flat-based weldolets are available for connecting to pipe caps and vessel heads. (MSS SP-97 UNS S31803 Weldolet DN50 X DN50 Sch40)

  • buttweld weldolet - How to get high quality pipe olets?

    Outlet
    Nominal Pipe Size
    Face to Crotch (L)
    Standard (SCH40S) XS (SCH80S) SCH160
    Réduit Egal Réduit Egal Réduit Egal
    1/8″ 16 16
    1/4″ 16 16
    3/8″ 16 19
    1/2″ 19 19 19 19 28 28
    3/4″ 22 22 22 22 32 32
    1″ 27 27 27 27 38 38
    1 1/4″ 32 32 32 30 44 44
    1 1/2″ 33 33 33 32 51 51
    2″ 38 38 38 38 55 55
    2 1/2″ 41 41 41 41 62 62
    3″ 44 44 44 44 73 73
    3 1/2″ 48 51 48 51
    4″ 51 51 51 51 84 84
    5″ 57 57 57 57 94 94
    6″ 60 60 78 78 105 105
    8″ 70 70 99 99
    10″ 78 78 94 89
    12″ 86 86 103 100
    14″ 89 89 100 105
    16″ 94 94 106 113
    18″ 97 103 111 119
    20″ 102 117 119 127
    24″ 116 137 140 140

    The dimensions are in millimeters
    Source : MSS SP-97 – 2006

    Dimensions – Weldolet Size on Size XS

    weldolet graph - How to get high quality pipe olets?

    Outlet Size
    Inches
    A B C D Apprx. Weight
    Pounds
    1/2 3/4 1 3/8 15/16 5/8 0.15
    3/4 7/8 1 5/8 1 3/16 13/16 0.25
    1 1 1/16 2 1 7/16 1 1/32 0.40
    1 1/4 1 1/4 2 7/16 1 3/4 1 3/8 0.70
    1 1/2 1 5/16 2 7/8 2 1 5/8 0.90
    2 1 1/2 3 1/2 2 9/16 2 1/16 1.60
    2 1/2 1 5/8 4 1/16 3 2 7/16 2.50
    3 1 3/4 4 13/16 3 11/16 3 1/16 4.10
    3 1/2 2 5 3/8 3 7/8 3 9/16 5.10
    4 2 6 4 3/4 4 7.50
    5 2 1/4 7 1/8 5 9/16 5 1/16 9.50
    6 3 1/16 8 7/8 6 11/16 6 1/16 15.00
    8 3 7/8 10 5/8 8 11/16 7 5/8 32.00
    10 3 1/2 12 7/8 10 7/16 9 3/4 46.00
    12 3 15/16 15 3/16 13 11 3/4 61.00
    14 4 1/8 16 11/16 14 5/16 13 75.00
    16 4 7/16 18 7/8 16 1/2 15 115.00
    18 4 11/16 21 1/8 18 5/8 17 130.00
    20 5 23 3/8 20 13/16 19 187.00
    24 5 1/2 27 7/8 25 1/8 23 316.00
    26 5 3/4 30 1/8 27 1/4 25 370.00
    30, 36 and larger sizes available on application

    Conventional Run Size Combinations

    Standard Weight Weldolet, Extra Strong Weldolet,
    Class 3000 Thredolet, Class 3000 Sockolet, Extra Strong Nipolet
    Run Sizes Outlet Size Inches
    1/8 1/4 3/8 1/2 3/4 1 1 1/4
    3/8 3/8 1/2 1/2 3/4 1 1 1/4
    1/2 1/2 1 3/4 3/4 1 1 1/4 1 1/2
    1 3/4 1 3/4 1 1/2 – 1 1/4 1 1 1/2 – 1 1/4 1 1/2 2
    2 1/2 – 1 1/4 1 1/2 – 1 1/4 36-3 1 1/2 – 1 1/4 2 1/2 – 2 2 2 1/2
    36-3 36-3 flat 2 1/2 – 2 5-3 2 1/2 3 1/2 – 3
    flat flat   8-3 12-6 3 1/2 – 3 5-4
          36-10 36-14 5 – 4 8-6
          flat flat 10 – 6 18-10
        3/4 – 1/2     36 – 12 36-20
        36 – 1     flat flat
        flat        
      Outlet sizes 8, 10, 12, 14, 16. 18, 24, 26. 20 order to specific size combination.
    Size consolidation for Weldolets only
    Run Sizes Outlet Size Inches
    1 1/2 2 2 1/2 3 3 1/2 4 5 6
    1 1/2 2 2 1/2 3 3 1/2 4 5 6
    2 2 1/2 3 3 1/2 4 5 6 8
    2 1/2 3 3 1/2 4 5 6 8 10
    3 4 – 3 1/2 4 5 6 8 10 14-12
    4 – 3 1/2 5 5 6 8 10 12 16
    6-5 6 6 8 10 14-12 14 18
    12-8 10-8 8 10 14-12 20-16 18-16 22-20
    24-14 18-12 12-10 14-12 20-16 22 22-20 28-24
    36-26 36-20 18-14 20-16 36-24 36-24 28-24 36-30
    flat flat 36-20 36-24 flat flat 36-30 flat
        flat flat     flat  

    Class 6000 Thredolet, Class 6000 Sockolet, XXS Nipolet
    Run Sizes Outlet Size Inches
    1/4 3/8 1/2 3/4 1 1 1/4 1 1/2 2
    1/2 1/2 1 3/4 1 1 1/2 – 1 1/4 1 1/2 2 2 1/2
    1 3/4 3/4 2 – 1 1/4 2 1/2 – 1 1/4 2 1/2 – 2 2 1/2 – 2 2 1/2 3
    2 1/2 – 1 1/4 1 6 – 2 1/2 10-3 10-3 3 1/2 – 3 3 1/2 – 3 4
    36-3 1 1/2 – 1 1/4 36-8 36-12 36-12 8-4 5-4 5
    flat 2 1/2 – 2 flat flat flat 36-10 8-6 6
      8-3       flat 18-10 10-8
      36-10         36-20 20-12
      flat         flat 36-24
                  flat
    Schedule 160, XXS Weldolet
    Run Sizes Outlet Size Inches
    1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3 4
    1/2 1 3/4 1 1 1/2 – 1 1/4 1 1/2 2 2 1/2 3 4
    1 1/4 – 3/4 2 – 1 1/4 2 1/2 -1 1/4 2 1/2 -2 2 1/2 – 2 2 1/2 3 3 1/2 6
    36 – 1 1/2 6 – 2 1/2 10-3 10-3 3 1/2 -3 3 1/2 -3 3 1/2 4 8
    flat 36-8 36-12 36-12 8-4 5-4 4 5 10
      flat flat flat 20-10 8-6 5 6 12
            22 18-10 8-6 8 14
            36-24 36-20 12-10 10 16
            flat flat 18-14 12 18
                36-20 14 20
                flat 16 22
                  18 24
                  20  
                  22  
                  24  
                  flat  
Pipe olets & olet series
Type Pipe Weldolet / Pipe Olet
Specialized in Weldolet
Pattern
Weldolet, socketolet, threadedolet, nipolet, latrolet, eblowolet etc. 

size

1/8”-4”

Pressure class

3000/6000/9000LBS (Sch40, Sch80/Xs Sch160 Xxs)

Manufacturing standards ANSI/ASME B16.11/MSS-SP-79/MSS-SP-83/MSS-SP-95/MSS-SP-97

20180110172406 43551 - How to get high quality pipe olets?SOCKOLET® utilizes the basic Weldolet® however the branch affixes by way of a socket inside the olet. The bore matches the outlet bore, and the existence of a counter bore roughly the size of the OD of the outlet provides a socket where the pipe can sit, facilitating installation and welding. The Sockolet® is considered a socket fitting, and manufactured in 3000#, 6000# and 9000# classes. Sockolet makes a 90-deg branch, full-size or reducing on straight pipe. Flat-based sockolets are available for branch connections on pipe caps and vessel heads.(MSS SP-97 ASTM A182 316L Sockolet 8 X 2 Inch 3000LBS)

sockolets size - How to get high quality pipe olets?

REDUCING SIZES
  NPS     Pressure Class 3000 – NPS 1/2 up to NPS 6
A B C D E
1/2
INCH
MM
1
25.40
1-13/32
35.71
29/32
23.01
0.622
15.80
9/16
14.28
3/4
INCH
MM
1-1/16
26.98
1-23/32
43.65
1-5/32
29.36
0.824
20.93
9/16
14.28
1
INCH
MM
1-5/16
33.33
2
50.8
1-7/16
36.51
1.049
26.64
25/32
19.84
1 ¼
INCH
MM
1-5/16
33.33
2-9/16
65.08
1-3/4
44.45
1.380
35.05
3/4
19.05
1 ½
INCH
MM
1-3/8
34.92
2-27/32
72.23
2
50.8
1.610
40.89
3/4
19.05
2
INCH
MM
1-1/2
38.1
3-15/32
88.10
2-9/16
65.08
2.067
52.50
13/16
20.63
2 ½
INCH
MM
1-9/16
39.68
4-1/16
103.18
3
76.2
2.469
62.71
3/4
19.05
3
INCH
MM
1-3/4
44.45
4-13/16
122.23
3-11/16
93.66
3.068
77.93
15/16
23.81
3 ½
INCH
MM
1-11/16
42.86
5-3/8
136.52
4-7/16
112.71
3.548
90.12
11/16
17.46
4
INCH
MM
1-7/8
47.62
5-31/32
151.60
4-3/4
120.65
4.026
102.26
1-1/16
26.98
5
INCH
MM
2-5/8
66.67
7-5/16
185.73
5-9/16
141.28
5.047
128.19
1-11/32
34.13
6
INCH
MM
2-3/4
69.85
8-5/8
219.07
6-11/16
169.86
6.065
154.05
1-13/32
35.71
REDUCING SIZES
  NPS     Pressure Class 6000 – NPS 1/2 up to NPS 2
A B C D E
1/2
INCH
MM
1-1/4
31.75
1-23/32
43.65
3/4
19.05
0.466
11.84
7/8
22.22
3/4
INCH
MM
1-7/16
36.51
1-61/64
49.60
1
25.4
0.614
15.60
7/8
22.22
1
INCH
MM
1-9/16
39.68
2-7/16
61.91
1-5/16
33.33
0.815
20.70
15/16
23.81
1 ¼
INCH
MM
1-5/8
41.27
2-23/32
69.05
1-1/2
38.1
1.160
29.46
13/16
20.63
1 ½
INCH
MM
1-11/16
42.86
3-1/4
82.55
1-15/16
49.21
1.338
33.99
7/8
22.22
2
INCH
MM
2-1/16
52.38
4-1/32
102.39
2-3/4
69.85
1.689
42.90
1-3/16
30.16
Pipe olets & olet series
Type Pipe Weldolet / Pipe Olet
Specialized in Sockolet
Pattern
Weldolet, socketolet, threadedolet, nipolet, latrolet, eblowolet etc. 

size

1/8”-4”

Pressure class

3000/6000/9000LBS (Sch40, Sch80/Xs Sch160 Xxs)

Manufacturing standards ANSI/ASME B16.11/MSS-SP-79/MSS-SP-83/MSS-SP-95/MSS-SP-97

20180110172541 17873 - How to get high quality pipe olets?THREDOLET® utilizes the basic Weldolet® however the branch affixes by way of a thread just inside the top of the olet. The bore matches the outlet bore, and the existence of this threading facilitates installation, as no welding is necessary. The Thredolet® is considered a threaded fitting, and manufactured in 3000# and 6000# classes. Threadolet makes a 90-deg branch, full-size or reducing on straight pipe. Flat-based Threadolet are available for branch connections on pipe caps and vessel heads. (MSS SP-97 ASTM A105 Threadolet NPT PN400)

20180110172642 23472 - How to get high quality pipe olets?

Dimensions reducing and size on size Thredolets® acc to MSS-SP97

REDUCING SIZES
  NPS    
Pressure Class 3000 – NPS 1/2 up to NPS 6
A
B
C
1/2
INCH
MM
1
25.40
1-13/32
35.71
15/16
23.81
3/4
INCH
MM
1-1/16
26.98
1-23/32
43.65
1-5/32
29.36
1
INCH
MM
1-5/16
33.33
2
50.80
1-7/16
36.51
1 ¼
INCH
MM
1-5/16
33.33
2-9/16
65.08
1-3/4
44.45
1 ½
INCH
MM
1-3/8
34.92
2-27/32
72.23
2
50.80
2
INCH
MM
1-1/2
38.10
3-15/32
88.10
2-9/16
65.08
2 ½
INCH
MM
1-13/16
46.03
4-1/16
103.18
3
76.20
3
INCH
MM
2
50.80
4-13/16
122.23
3-11/16
93.66
3 ½
INCH
MM
2-1/8
53.975
5-7/32
132.55
4
101.6
4
INCH
MM
2-1/4
57.15
5-31/32
151.60
4-3/4
120.65
5
INCH
MM
2-5/8
66.67
7-5/16
185.73
5-9/16
141.28
6
INCH
MM
2-3/4
69.85
8-5/8
219.07
6-11/16
169.86
Pipe olets & olet series
Type Pipe Weldolet / Pipe Olet
Specialized in Thredolet®
Pattern
Weldolet, socketolet, threadedolet, nipolet, latrolet, eblowolet etc. 

size

1/8”-4”

Pressure class

3000/6000/9000LBS (Sch40, Sch80/Xs Sch160 Xxs)

Manufacturing standards ANSI/ASME B16.11/MSS-SP-79/MSS-SP-83/MSS-SP-95/MSS-SP-97

20180110172710 82688 - How to get high quality pipe olets?LATROLET®, used for 45° lateral connections, is available butt-weld to meet specific reinforcement requirements, and 3000# or 6000# classes for Socket Weld and threaded applications. It makes a 45-deg branch from the main pipe. Mostly latrolets are used in the  flare relief  lines where the branches are going to connect with the main flare headers, Latrolets are always connected towards the flow to flare.


45deg branchconnection - How to get high quality pipe olets?

Nominal
Run Pipe
Size
Outlet Size Dimensions
CL 3000 Threaded and Socket Weld CL 6000 Threaded and Socket Weld
A B C E A B C E
2 1/2 – 1 1/4 1/4 1 9/16 2 11/32 1 7/16 1 9/16 1 9/16 2 11/32 1 7/16 1 9/16
12 – 3                  
2 1/2 – 1 1/4 3/8 1 9/16 2 11/32 1 7/16 1 9/16 1 9/16 2 11/32 1 7/16 1 9/16
12 – 3                  
2 1/2 – 1 1/4 1/2 1 9/16 2 11/32 1 7/16 1 9/16        
12 – 3                  
1 1/2 – 1 1/4                  
5 – 2 1/2         1 7/8 2 3/4 1 3/4 1 29/32
12 – 6                  
1 1/2 – 1 1/4                  
5 – 2 3/4 1 7/8 2 3/4 1 3/4 1 29/32        
12 – 6                  
2 1/2 – 2                  
5 – 3 3/4         2 3/16 3 1/4 2 1/8 2 3/16
12 – 6                  
2 1/2 – 2                  
5 – 3 1 2 3/16 3 1/4 2 1/8 2 3/16 2 1/2 3 21/32 2 5/8 2 15/32
12 – 6                  
2 1/2 – 2                  
5 – 3 1 1/4 2 1/2 3 27/32 2 5/8 2 15/16 2 3/4 4 7/32 3 1/32 2 5/8
12 – 6                  
2 1/2 – 2                  
5 – 3 1 1/2 2 3/4 4 7/32 3 1/32          
12 – 6                  
5 – 4                  
8 – 6 1 1/2         3 3/8 5 7/16 4 1/8 3 5/32
12 – 10                  
5 – 4                  
8 – 6 2 3 3/8 5 7/16 4 1/8 3 5/32 3 3/8 5 7/16 4 1/8 3 5/32
12 – 10                  
5 – 4                  
8 – 6 2 1/2                
12 – 10                  
Order to
Specific Run
Pipe Sizes
                 
3                
                 
Order to
Specific Run
Pipe Sizes
                 
4                
                 

Latrolet

45deg branchconnection - How to get high quality pipe olets?

Nominal
Run Pipe
Size
Outlet Size Dimensions
Sch. 160 and XXS Butt Weld
A B C
2 1/2 – 1 1/4 1/4 1 9/16 2 5/16 1 7/16
12 – 3        
2 1/2 – 1 1/4 3/8 1 9/16 2 5/16 1 7/16
12 – 3        
2 1/2 – 1 1/4 1/2      
12 – 3        
1 1/2 – 1 1/4        
5 – 2 1/2 1 13/16 2 3/4 1 3/4
12 – 6        
1 1/2 – 1 1/4        
5 – 2 3/4      
12 – 6        
2 1/2 – 2        
5 – 3 3/4 2 1/8 3 1/4 2 1/8
12 – 6        
2 1/2 – 2        
5 – 3 1 2 1/2 3 13/16 2 5/8
12 – 6        
2 1/2 – 2        
5 – 3 1 1/4 2 3/4 4 1/4 3
12 – 6        
2 1/2 – 2        
5 – 3 1 1/2      
12 – 6        
5 – 4        
8 – 6 1 1/2 3 3/8 5 3/8 4 1/8
12 – 10        
5 – 4        
8 – 6 2      
12 – 10        
5 – 4        
8 – 6 2 1/2      
12 – 10        
Order to
Specific Run
Pipe Sizes
       
3      
       
Order to
Specific Run
Pipe Sizes
       
4      
       
Pipe olets & olet series
Type Pipe Weldolet / Pipe Olet
Specialized in Latrolet
Pattern
Weldolet, socketolet, threadedolet, nipolet, latrolet, eblowolet etc. 

size

1/8”-4”

Pressure class

3000/6000/9000LBS (Sch40, Sch80/Xs Sch160 Xxs)

Manufacturing standards ANSI/ASME B16.11/MSS-SP-79/MSS-SP-83/MSS-SP-95/MSS-SP-97

20180110173021 23371 - How to get high quality pipe olets?ELBOLET® is used on 90° Long Radius Elbows (can be manufactured for Short Radius Elbows) for thermowell and instrumentation connections. Available butt-weld to meet specific reinforcement requirements, and 3000# and 6000# classes for Socket Weld and threaded applications.

elbolet size - How to get high quality pipe olets?

Nominal
Elbow Size
Inches

Outlet Size
Inches

Dimensions

CL 3000 Threaded &
Socket Weld Std. & XS Butt-Weld

CL 6000 Threaded &
Socket Socket-Weld Sch. 160 & XXS Butt-Weld

C

E

C

E

36 – 3/4 1/4 1 1/2 1 19/32 1 1/2 1 19/32
36 – 3/4 3/8 1 1/2 1 19/32 1 1/2 1 19/32
36 – 3/4 1/2 1 1/2 1 19/32 1 23/32 1 7/8
36 – 1 3/4 1 23/32 1 7/8 2 1/4 2 1/4
36 – 2 1 2 1/4 2 1/4 2 7/8 2 1/2
36 – 2 1 1/4 2 7/8 2 1/2 3 1/8 2 11/16
36 – 2 1 1/2 3 1/8 2 11/16 4 3/16 3 1/4
36 – 3 2 4 3/16 3 1/4    
  **2 1/2 4 3/16 3 1/4    
  **3 5 1/16 3 7/8    
Order to Specific **4 6 5/8 4 13/16    
Elbow Sizes **6 9 3/8 6 1/2 ** **
  **8 13 5/16 8 1/16    
  **10 17 1/32 10 3/8    
  **12 19 5/8 11 1/8    

elbolet fittings dimension - How to get high quality pipe olets?

Pipe olets & olet series
Type Pipe Weldolet / Pipe Olet
Specialized in Elbolet
Pattern
Weldolet, socketolet, threadedolet, nipolet, latrolet, eblowolet etc. 

size

1/8”-4”

Pressure class

3000/6000/9000LBS (Sch40, Sch80/Xs Sch160 Xxs)

Manufacturing standards ANSI/ASME B16.11/MSS-SP-79/MSS-SP-83/MSS-SP-95/MSS-SP-97

20180110173246 37839 - How to get high quality pipe olets?NIPOLET® is a one piece fitting for valve take-offs, drains and vents. Manufactured for Extra Strong and Double Extra Strong applications in 3.1/2in to 6.1/2in lengths. Available with male-socket weld or male threaded outlets.

20180110173359 98271 - How to get high quality pipe olets?

Nippolet Plain end and Threaded
Size 1/2 3/4 1 1 1/4 1 1/2 2
XS A 3 1/2 3 1/2 3 1/2 3 1/2 3 1/2 3 1/2
C 15/16 1 3/16 1 7/16 1 3/4 2 2 9/16
XXS A 3 1/2 3 1/2 3 1/2 3 1/2 3 1/2 3 1/2
C 9/16 3/4 1 1 5/16 1 1/2 1 11/16

Nippolet Conventional Run Size Combinations

Standard Weight Weldolet, Extra Strong Weldolet,
Class 3000 Thredolet, Class 3000 Sockolet, Extra Strong Nipolet
Run Sizes Outlet Size Inches
1/8 1/4 3/8 1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3 3 1/2 4 5 6
3/8
3/8
1/2
1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
3 1/2
4
5
6
1/2
1/2
1 3/4
3/4
1
1 1/4
1 1/2
2
2 1/2
3
3 1/2
4
5
6
8
1 3/4
1 3/4
1 1/2 – 1 1/4
1
1 1/2 – 1 1/4
1 1/2
2
2 1/2
3
3 1/2
4
5
6
8
10
2 1/2 – 1 1/4
1 1/2 – 1 1/4
36-3
1 1/2 – 1 1/4
2 1/2 – 2
2
2 1/2
3
4 – 3 1/2
4
5
6
8
10
14-12
36-3
36-3
flat
2 1/2 – 2
5-3
2 1/2
3 1/2 – 3
4 – 3 1/2
5
5
6
8
10
12
16
flat
flat
 
8-3
12-6
3 1/2 – 3
5-4
6-5
6
6
8
10
14-12
14
18
 
 
 
36-10
36-14
5 – 4
8-6
12-8
10-8
8
10
14-12
20-16
18-16
22-20
 
 
 
flat
flat
10 – 6
18-10
24-14
18-12
12-10
14-12
20-16
22
22-20
28-24
 
 
3/4 – 1/2
 
 
36 – 12
36-20
36-26
36-20
18-14
20-16
36-24
36-24
28-24
36-30
 
 
36 – 1
 
 
flat
flat
flat
flat
36-20
36-24
flat
flat
36-30
flat
 
 
flat
 
 
 
 
 
 
flat
flat
 
 
flat
 
  Outlet sizes 8, 10, 12, 14, 16. 18, 24, 26. 20 order to specific size combination. Size consolidation for Weldolets only

Class 6000 Thredolet, Class 6000 Sockolet, XXS Nipolet

Run Sizes Outlet Size Inches
1/4
3/8
1/2
3/4
1
1 1/4
1 1/2
2
1/2
1/2
1 3/4
1
1 1/2 – 1 1/4
1 1/2
2
2 1/2
1 3/4
3/4
2 – 1 1/4
2 1/2 – 1 1/4
2 1/2 – 2
2 1/2 – 2
2 1/2
3
2 1/2 – 1 1/4
1
6 – 2 1/2
10-3
10-3
3 1/2 – 3
3 1/2 – 3
4
36-3
1 1/2 – 1 1/4
36-8
36-12
36-12
8-4
5-4
5
flat
2 1/2 – 2
flat
flat
flat
36-10
8-6
6
 
8-3
 
 
 
flat
18-10
10-8
 
36-10
 
 
 
 
36-20
20-12
 
flat
 
 
 
 
flat
36-24
 
 
 
 
 
 
 
flat

Schedule 160, XXS Weldolet

Run Sizes
Outlet Size Inches
1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
4
1/2
1 3/4
1
1 1/2 – 1 1/4
1 1/2
2
2 1/2
3
4
1 1/4 – 3/4
2 – 1 1/4
2 1/2 -1 1/4
2 1/2 -2
2 1/2 – 2
2 1/2
3
3 1/2
6
36 – 1 1/2
6 – 2 1/2
10-3
10-3
3 1/2 -3
3 1/2 -3
3 1/2
4
8
flat
36-8
36-12
36-12
8-4
5-4
4
5
10
 
flat
flat
flat
20-10
8-6
5
6
12
 
 
 
 
22
18-10
8-6
8
14
 
 
 
 
36-24
36-20
12-10
10
16
 
 
 
 
flat
flat
18-14
12
18
 
 
 
 
 
 
36-20
14
20
 
 
 
 
 
 
flat
16
22
 
 
 
 
 
 
 
18
24
 
 
 
 
 
 
 
20
 
 
 
 
 
 
 
 
22
 
 
 
 
 
 
 
 
24
 
 
 
 
 
 
 
 
flat
 
Pipe olets & olet series
Type Pipe Weldolet / Pipe Olet
Specialized in Nipolet
Pattern
Weldolet, socketolet, threadedolet, nipolet, latrolet, eblowolet etc. 

size

1/8”-4”

Pressure class

3000/6000/9000LBS (Sch40, Sch80/Xs Sch160 Xxs)

Manufacturing standards ANSI/ASME B16.11/MSS-SP-79/MSS-SP-83/MSS-SP-95/MSS-SP-97

20180110173458 38741 - How to get high quality pipe olets?SWEEPOLET® is a contoured, integrally reinforced, butt-weld branch connection with a low stress intensification factor for low stresses and long fatigue life. The attachment weld is easily examined by radiography, ultrasound and other standard non-destructive techniques. Manufactured to meet your specific reinforcement requirements.

20180110173538 93384 - How to get high quality pipe olets?

Run Size

Outlet Size
Inches

Dimensions

*A

B

6 to 36 1 1/4 1 1/4 4
6 to 36 1 1/2 1 3/4 5 1/2
6 to 36 2 1 1/2 5 1/2
6 to 36 3 1 21/32 7
6 to 36 4 2 1/32 8 3/4
10 to 36 6 2 11/16 13
12 to 36 8 3 15
16 to 36 10 3 1/8 18 1/2
16 to 36 12 3 5/16 20 1/2
20 to 36 14 3 5/8 24
24 to 36 16 3 3/4 28
24 to 36 18 4 5/8 31
24 to 36 20 5 1/8 33
30 to 36 24 5 5/8 38
Pipe olets & olet series
Type Pipe Weldolet / Pipe Olet
Specialized in Sweepolet
Pattern
Weldolet, socketolet, threadedolet, nipolet, latrolet, eblowolet etc. 

size

1/8”-4”

Pressure class

3000/6000/9000LBS (Sch40, Sch80/Xs Sch160 Xxs)

Manufacturing standards ANSI/ASME B16.11/MSS-SP-79/MSS-SP-83/MSS-SP-95/MSS-SP-97

20180110173614 14923 - How to get high quality pipe olets?INSERT WELDOLET® is another contoured butt-weld branch connection used in less critical applications. Like the Sweepolet®, the attachment welds are easily examined by radiography, ultrasound and other standard non-destructive techniques. Manufactured to meet your specific reinforcement requirements.

20180110173656 70652 - How to get high quality pipe olets?

Outlet
Size

A’ Dimensions (Height above run pipe)

1 1/2

2

2 1/2

3

4

5

6

8

10

12

14

16

18

20

24

Std Wt Run Pipe 1.50 1.50 1.62 1.75 2.00 2.25 2.38 2.75 3.06 3.38 3.50 3.75 3.81 4 4.56
XS Run Pipe 1.50 1.50 1.62 1.75 2.00 2.25 3.06 3.87 3.69 4.06 3.81 4.19 4.38 4.69 5.50
.500″ to .750″ Thick Run Pipe 2.88 3.31 3.75 4.12 4.18 4.25 4.37 4.50 4.69 5.13 5.62 6.50
.750″ to 1.00″ Thick Run Pipe 3.22 3.38 3.75 4.34 4.62 4.84 5.10 5.25 5.88 6.50 6.75 7.62
1.00″ to 1.25″ Thick Run Pipe 3.38 3.50 4.00 4.50 4.88 5.00 5.38 5.50 6.00 6.50 7.00 8.00
1.25″ to 1.50″ Thick Run Pipe 3.62 3.87 4.25 4.69 5.16 5.31 5.68 5.81 6.44 6.50 7.56 8.72

Outlet
Size

*’W’ Dimensions (Max. O.D. of fitting – Max. size of hole)

1 1/2

2

2 1/2

3

4

5

6

8

10

12

14

16

18

20

24

Std Wt Run Pipe 3.50 4.25 4.88 5.69 7.00 8.06 9.71 11.71 14.00 16.32 17.56 19.75 22.00 24.00 29.00
XS Run Pipe 3.56 4.38 5.00 5.75 7.12 8.25 10.44 13.44 14.25 16.56 18.00 20.00 22.44 25.00 30.32
Pipe olets & olet series
Type Pipe Weldolet / Pipe Olet
Specialized in Insert Weldolet
Pattern
Weldolet, socketolet, threadedolet, nipolet, latrolet, eblowolet etc. 

size

1/8”-4”

Pressure class

3000/6000/9000LBS (Sch40, Sch80/Xs Sch160 Xxs)

Manufacturing standards ANSI/ASME B16.11/MSS-SP-79/MSS-SP-83/MSS-SP-95/MSS-SP-97

20180110173732 69086 - How to get high quality pipe olets?BRAZOLET® is designed for use with KLM and IPS brass or copper tubing. Available with socket or threaded connections.

20180110173807 34882 - How to get high quality pipe olets?

Brazolet® for IPS Pipe

ASME SB-98 UNS C665500 Alloy A

Outlet Sizes
A
B
C
Brazing Surface
F-MIN. MIL-1183
1/4
11/16
1
9/16
0.188
0.700
3/8
13/16
1 1/4
3/4
0.190
0.855
1/2
1
1 7/16
7/8
0.220
1.020
3/4
1 1/16
1 3/4
1 1/8
0.240
1.250
1
1 1/4
2 1/8
1 7/16
0.270
1.535
1 1/4
1 5/16
2 9/16
1 3/4
0.300
1.900
1 1/2
1 3/8
2 7/8
2
0.330
2.160
2
1 1/2
3 1/2
2 9/16
0.360
2.675
2 1/2
1 13/16
4 1/8
3
0.384
3.215
3
2
4 13/16
3 11/16
0.442
3.880
4
2 1/4
6
4 3/4
0.476
4.940
5
2 5/8
7 1/16
5 9/16
0.656
6.163

20180110173807 34882 - How to get high quality pipe olets?

Brazolet® for Tubing

Type K, L, and M Tubing. ASME SB-98 UNS C65500 Alloy A

Outlet Sizes
A
B
C
Brazing Surface
F-MIN. MIL-1183
1/4
11/16
1
9/16
0.188
0.700
3/8
13/16
1 1/4
3/4
0.190
0.855
1/2
13/16
1 1/4
3/4
0.190
0.855
3/4
1
1 7/16
7/8
0.220
1.020
1
1 1/16
1 3/4
1 1/8
0.240
1.250
1 1/4
1 1/4
2 1/8
1 7/16
0.270
1.535
1 1/2
1 5/16
2 9/16
1 3/4
0.300
1.900
2
1 3/8
2 7/8
2
0.330
2.160
2 1/2
1 1/2
3 1/2
2 9/16
0.360
2.675
3
1 13/16
4 1/8
3
0.384
3.215
4
2 1/8
5 1/2
4 5/16
0.437
4.400
Pipe olets & olet series
Type Pipe Weldolet / Pipe Olet
Specialized in Brazolet
Pattern
Weldolet, socketolet, threadedolet, nipolet, latrolet, eblowolet etc. 

size

1/8”-4”

Pressure class

3000/6000/9000LBS (Sch40, Sch80/Xs Sch160 Xxs)

Manufacturing standards ANSI/ASME B16.11/MSS-SP-79/MSS-SP-83/MSS-SP-95/MSS-SP-97

20180110173856 78013 - How to get high quality pipe olets?COUPOLET® fittings are designed for use in fire protection sprinkler systems and other low pressure piping applications. manufactured with NPT female threads for 300# service and are UL Listed and F.M. approved.

20180110153628 43357 - How to get high quality pipe olets?

300# Female Threaded Coupolet
Nominal
Outlet Size
Dimensions
A C F
1/2 15/16 0.745 1.188
3/4 1 0.958 1.441
1 1 3/16 1.188 1.562
1 1/4 1 5/16 1.550 1.906
1 1/2 1 9/16 1.780 2.188
2 1 11/16 2.260 2.750
2 1/2 1 13/16 2.890 3.386
3 2 1/2 3.400 4.000
4 3 4.380 5.000

Interchangeability or Combination of Sizes
Coupolet Outlet
Size Inches
Run Sizes
1/2 1/2 3/4 1 1/4 -1 8-3 36-10          
3/4 3/4 1 2 – 1 1/4 36-8            
1 1 1 1/4 2 – 1 1/2 8-5 36-10          
1 1/4 1 1/4 1 1/2 2 1/2 – 2 8-5 36-10          
1 1/2 1 1/2 2 2 1/2 8-5 16-10 36-18        
2 2 2 1/2 3 4 5 6 8 10 16-12 36-18
2 1/2 2 1/2 3 3 1/2 5 6 8 12-10 16-14 36-18  
3 3 3 1/2 4 6 8 10 12 14 18-16 36-20
4 5 6 8 14-12 16 18 20 24 36  
Pipe olets & olet series
Type Pipe Weldolet / Pipe Olet
Specialized in Coupolet
Pattern
Weldolet, socketolet, threadedolet, nipolet, latrolet, eblowolet etc. 

size

1/8”-4”

Pressure class

3000/6000/9000LBS (Sch40, Sch80/Xs Sch160 Xxs)

Manufacturing standards ANSI/ASME B16.11/MSS-SP-79/MSS-SP-83/MSS-SP-95/MSS-SP-97

Specifying the Schedule of both the Run and Branch

Generally the schedules of the run pipe and branch pipe are identical and thus specification of the equivalent schedule Weldolet assures the proper fitting being used.

EXAMPLE:
16″ Standard weight x 6″ Standard weight is specified as a 6″ standard weight fitting.
Where the schedule of the run is greater or less than the schedule of the branch, it is essential that both schedules be specified since (a) The Weldolet’s reinforcing characteristics are a function of the run pipe wall thickness, which in turn designates the schedule of the basic Weldolet® fitting to be used;(b) The wall thickness of the outlet or branch end must match the wall thickness of the branch pipe.

EXAMPLE:
16″ Extra strong x 6″ Standard weight
16″ Standard weight x 6″ Extra strong
Special care is suggested to avoid confusing schedule 40 and standard weight as being identical (above 10″ schedule 40 is heavier) and schedule 80 and extra strong (above 8″ schedule 80 is heavier).

EXAMPLE:
8″ Schedule 80 x 4″ Schedule 80 fitting or extra strong fitting.18″ Schedule 80 x 4″ Schedule 80 is a considerably heavier fitting, because the reinforcement is for 18″ schedule 80 pipe with a wall thickness of approximately 1″.
The Weldolet® is available in standard code designs for all combinations of run wall thicknesses up through 3½” thickness and branch wall thicknesses up through double extra strong. Designs for thicknesses greater than these can be developed on request.

Source: China Pipe Olet Manufacturer – Yaang pipe fitting Industry Co., Limited (www.steeljrv.com)

(Yaang Pipe Industry is a leading manufacturer and supplier of nickel alloy and stainless steel products, including Super Duplex Stainless Steel Flanges, Stainless Steel Flanges, Stainless Steel Pipe Fittings, Stainless Steel Pipe. Yaang products are widely used in Shipbuilding, Nuclear power, Marine engineering, Petroleum, Chemical, Mining, Sewage treatment, Natural gas and Pressure vessels and other industries.)

If you want to have more information about the article or you want to share your opinion with us, contact us at sales@steeljrv.com

Please notice that you might be interested in the other technical articles we’ve published:

  • Tips for selecting expansion joints

  • What is the difference between a steel pipe and a steel tube

  • Engineering Specification for Pressure Test of Piping System

  • How to choose a valve and valve end connection type

  • How to test pipe fitting

  • HOW TO GET HIGH QUALITY STAINLESS STEEL PIPES

  • Development trend of high pressure pipe fittings

  • How to get high quality flanges

  • How to get high quality pipe fittings

  • How to get high quality bellow expansion joints

  • How to get high quality alloy steel pipes

  • HOW TO GET HIGH QUALITY STEEL PIPES

  • HOW TO GET HIGH QUALITY PIPE ELBOW

  • WHAT ARE OUTLET PIPE FITTINGS

  • What are pipe caps

  • WHEN TO USE A SPECTACLE BLIND FLANGE

  • HOW TO GET HIGH QUALITY BOILER TUBES

  • HOW TO GET HIGH QUALITY PIPE CAP

  • HOW TO GET HIGH QUALITY PIPE BEND

  • The difference between pipe nipple and pipe coupling

  • What is a Pipe Nipple

References:

  • https://www.yaang.com
  • http://www.wermac.org/fittings/olets_general.html

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