SADDLE PIECES

Type and Construction

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
914 x 15.5 (16 bar)
610 x 13 (20 bar)
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
or larger than branch in the range
323.9 x 5.5
up to and including
914x 15.5

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
or larger than branch in the range
323.9 x 7.0
up to and including
610 x 13
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