Understanding APIICP653 Reading 2-650-Selected Reading

Shell plate
of lowest
shell
course = t
C
(See Note 1)
One telltale 6 mm
( 1 /4 in.) hole in
reinforcing
plate at about
mid-height
6 mm
( 1 /4 in.)
Nearest horizontal weld
See Detail b
B
Shell plate at cleanout fitting = t d
r 2
Equal spaces
g
e
Reinforcing plate = t d
f 3
Flange bolt-hole
diameter = bolt
diameter (see Tables 5-9a
and 5-9b) + 3 mm ( 1 /8 in.)
6 mm
( 1 /4 in.)
r 1
b/2
f 2
A
(See Note 5)
(See Note 5)
375 mm
(15 in.) min
C
L
See Detail a
125 mm
(5 in.)
t c
h
t d
See Detail b
for top and
sides
Bottom
plate
B
f 3
6 mm ( 1 /4 in.)
150 mm 300 mm
W/2 arc dimensions
(6 in.) min (12 in.) min
Notch as required to provide flush joint under shell ring (see Section D-D)
t d
175 mm (5 in.)
50 mm
t d
(2 in.)
Full-fillet
38 mm
weld
(1 1 /2")
(See Note 1)
5 mm ( 3 /16 in.)
or
6 mm ( 1 /4")
t b
Section B-B
75 mm (3 in.) radius
5 mm
( 3 /16 in.)
Equal spaces
Detail a
e
A
10 mm ( 3 /8 in.) thick
38 mm (1 1 /2")
75 mm
(3 in.) Lifting Lug
38 mm (1 1 /2")
Cover plate
Versine
6 mm
( 1 /4 in.)
t b
Section A-A
Grind radius on corner
when weld is less than t d
t d
[40 mm
(1 1 /2 in.) max]
Detail b
t d
t d
D
32 mm
(1 1 /4 in.) min
Full-penetration
weld
(See Note 3)
D
32 mm
(1 1 /4
in.) min
Section D-D
6 mm
( 1 /4 in.)
6 mm
( 1 /4 in.)
90 degrees ± 30 degrees
125 mm (5 in.) min
6 mm
( 1 /4 in.)
Section C-C
Notes:
1. Thickness of thinner plate joined (13 mm [ 1 / 2 in.] maximum).
2. When an annular plate is provided, the reinforcing plate shall be
regarded as a segment of the annular plate and shall be the same
width as the annular plate.
3. When the difference between the thickness of the annular ring and
that of the bottom reinforcing plate is less than 6 mm ( 1 / 4 in.), the
radial joint between the annular ring and the bottom reinforcing plate
32 mm (1 1 /4 in.) min
t d + t d + 250 mm (10 in.)
(see Note 2)
(See
Note 1)
t d
[19 mm ( 3 /4 in.) max]
Figure 5.12—Flush-Type Cleanout Fittings (see Tables 5.9a, 5.9b, 5.10a, 5.10b, 5.11a, and 5.11b)
f 3
e
t c
5 mm
( 3 /16 in.)
Round
and grind t d
(See Note 5)
Neck bevel shall be
approximately 10 degrees
may be butt-welded with a weld joint suitable for complete
penetration and fusion.
4. Gasket material shall be specified by the Purchaser. The gasket material
shall meet service requirements based on product stored, design
metal temperature, maximum design temperature and fire resistance.
5. The thickness (t d ) of the shell plate at the cleanout opening, the
reinforcing plate, and the neck plate, shall be equal to or greater
than the thickness (t) of the shell plate of the lowest shell course.
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