Saddle pieces are in accordance with EEMUA –234, Section 7. Saddle pieces up to including 12 in./323.9 mm are supplied in seamless. Larger dimensions are manufactured from seamless or welded pipes as well as plates.
Dimensions
Dimensions are based on EEMUA -234, Section 7, Figures 7.1-7.3 and Tables 7.1.1-7.3.2. Saddle pieces with other dimensions are available on request.
Tolerances
The tolerances are based on EEMUA – 234, Section 7, Tables 7.2.1-7.3.2.
Weld Preparation
Welding ends of butt weld ends for wall thickness less than 3 mm, the saddle pieces are supplied with plain weld ends. Larger thicknesses are supplied with the weld bevel of 37 ½°±2 ½°.
SEAMLESS SADDLE PIECES
Header | Branch | t | t | Dimension | Tolerance on | Dimension | Tolerance on |
|
Speciefied OD | Size Range | 16 bar | 20 bar | L | L | h | h | r |
mm | mm | mm | mm | mm | mm | mm | mm | mm |
All header sizes equal to or larger than branch up to and including | 323 | 5.5 | 7.0 | 560 | ± 6 | 185 | ± 2.5 | 100 |
267 | 4.5 | 5.5 | 447 | ± 5 | 155 | ± 2.5 | 90 | |
219.1 | 4.0 | 4.5 | 379 | ± 5 | 125 | ± 1.6 | 80 | |
159 | 3.0 | 3.5 | 279 | ± 4 | 95 | ± 1.6 | 60 | |
108 | 3.0 | 3.0 | 188 | ± 4 | 75 | ± 1.6 | 40 | |
88.9 | 2.5 | 2.5 | 149 | ± 3 | 55 | ± 1.6 | 30 | |
76.1 | 2.5 | 2.5 | 126 | ± 3 | 50 | ± 1.6 | 25 | |
57 | 2.5 | 2.5 | 97 | ± 3 | 40 | ± 1.6 | 20 | |
44.5 | 2.5 | 2.5 | 74 | ± 3 | 35 | ± 1.6 | 15 | |
38 | 2.5 | 2.5 | 64 | ± 3 | 35 | ± 1.6 | 13 |
SEAMWELDED SADDLE PIECES - 16 BAR RATING
Header | Branch | Dimension | Tolerance on | Dimension | Tolerance on |
Speciefied OD | Size Range | L | L | h | h |
mm | mm | mm | mm | mm | mm |
All header sizes equal to | 914 x 15.5 | 1550 | 7 | 460 | 3.5 |
813 x 13.5 | 1400 | 7 | 410 | 3.5 | |
711 x 12 | 1225 | 7 | 360 | 3.5 | |
610 x 10.5 | 1020 | 7 | 300 | 3.0 | |
508 x 8.5 | 880 | 6 | 275 | 3.0 | |
457.2 x 8.0 | 800 | 6 | 250 | 3.0 | |
419 x 7.0 | 680 | 6 | 225 | 3.0 | |
368 x 6.5 | 613 | 6 | 200 | 3.0 | |
323.9 x 5.5 | 560 | 6 | 185 | 2.5 | |
267 x 4.5 | 447 | 5 | 155 | 2.5 | |
219.1 x 4.0 | 379 | 5 | 125 | 1.6 |
SEAMWELDED SADDLE PIECES - 20 BAR RATING
Header | Branch | Dimension | Tolerance on | Dimension | Tolerance on |
Speciefied OD | Size Range | L | L | h | h |
mm | mm | mm | mm | mm | mm |
All header sizes equal to | 610 x 13 | 1020 | 7 | 300 | 3.0 |
508 x 11 | 880 | 7 | 275 | 3.0 | |
457.2 x 9.5 | 800 | 6 | 250 | 3.0 | |
419 x 9.0 | 680 | 6 | 225 | 3.0 | |
368 x 8.0 | 613 | 6 | 200 | 3.0 | |
323.9 x 7.0 | 560 | 6 | 185 | 2.5 | |
267 x 5.5 | 447 | 5 | 155 | 2.5 | |
219.1 x 4.5 | 379 | 5 | 125 | 1.6 |