Yokogawa ADMAG AXF - Manual (Page 33)

IM 01E20D01-01E 3-23
3. INSTALLATION
(b) Union type
(process connection codes: JDB, JKB, and JSB)
1) Welding sleeve
Pass the piping through a nut and then weld a
sleeve to the piping.
IMPORTANT
• Be sure to weld the sleeve after passing the
piping through the nut.
• When welding the sleeve, pay attention to the
edge preparation, level differences between the
sleeve and the piping, and the welding current
to avoid deforming the piping or causing
stagnation of some of the fluid.
2) Installing gasket
Install a gasket for union to fit in the groove on
the sleeve.
3) Positioning flowmeter
Move the nut closer to the piping temporarily
and position the flowmeter between the two
sleeves.
4) Tightening nut
Install the nut to cover the tapered parts of the
flowmeter-side adapter and the sleeve, and
tighten it using a wrench.
5) Confirmation of adapter mounting screw
After installation of the magnetic flowmeter, be
sure to retighten the adapter mounting screw
according to Table 3.3.21 or Table 3.3.22.
Be sure to confirm that leakage from adapter
connection point does not occur by filling the
pipe of the flowtube with fluid.
NOTE
The sleeve, nut, and gasket are not provided
with the flowmeter, and must be provided by the
user.
Gasket
Sleeve
Adapter for union connection
Nut
F0315.EPS
Adapter mounting screw
Figure 3.3.9 Mounting Procedure for Union Connection
Type
(c) Butt weld adapter type
(process connection codes: KDB and KKB)
1) Removing adapter
Remove the butt weld adapter by loosening the
mounting screws.
2) Welding ferrule or sleeve
Weld a ferrule, a sleeve, or an alternative
(provided by the user) to the butt weld adapter.
IMPORTANT
• Be sure to weld the ferrule, the sleeve, or the
alternative after removing the butt weld adapter
from the flowmeter itself.
• When welding the ferrule, the sleeve, or the
alternative, pay attention to the edge prepara-
tion, level differences between them and the
piping, and the welding current to avoid deform-
ing the piping or causing stagnation portion of
the fluid.
3) Installing butt weld adapter
Install a gasket to fit in the groove of the butt
weld adapter, and tighten the mounting screws.