Yokogawa ADMAG AXR - Manual (Page 22)

<3. INSTALLATION>
3-10
IM 01E30D01-01EN
Table 3.3.8 Centering Device Identification (AXR Lay length code 2, PFA lining)
Flange
ratings
Size
mm (inch)
JIS ANSI DIN
10K 20K
F12
(75M)
150 300 PN10 PN16 PN40
50 (2.0) B B — B F — — F
65 (2.5) B B — B G — F —
80 (3.0) B F H F C — G —
100 (4.0) B F H C H — F —
150 (6.0) C D D C E — C —
200 (8.0) C D D D E C C —
*: Each centering device is engraved with a character as identification.
Table 3.3.9 Inner Diameters of Grounding Ring,
Outer Diameter for Effective Sealing
Be sure to choose a gasket with an inner and outer
diameter that does not protrude inside the piping.
If the inner diameter of the gasket is too large,
or outer diameter of the gasket is too small, fluid
leakage may result.
Lay length code1 (Flange, Wafer type) Unit : mm (in.)
Size
Inner diameter of
ground ring[øA]
Outer diameter for
effective sealing[øB]
25 (1.0) 28 (1.10) 53 (2.09)
40 (1.5) 41 (1.61) 71 (2.80)
50 (2.0) 53 (2.09) 84 (3.31)
65 (2.5) 66 (2.60) 103 (4.06)
80 (3.0) 77 (3 .03) 114 (4.49)
100 (4.0) 102 (4.02) 140 (5.51)
150 (6.0) 146.1 (5.75) 190 (7.48)
200 (8.0) 193.6 (7.62) 240 (9.45)
Lay length code2 (Wafer type) Unit : mm (in.)
Size
Inner diameter of
ground ring[øA]
Outer diameter for
effective sealing[øB]
25 (1.0) 28 (1.10) 53 (2.09)
40 (1.5) 41 (1.61) 71 (2.80)
50 (2.0) 53 (2.09) 84 (3.31)
65 (2.5) 66 (2.60) 103 (4.06)
80 (3.0) 77 (3 .03) 114 (4.49)
100 (4.0) 102 (4.02) 140 (5.51)
150 (6.0) 140.7 (5.54) 190 (7.48)
200 (8.0) 188.9 (7.44) 240 (9.45)
Size of Inner Diameter of Grounding ring and
Outer Diameter for Effective Sealing :
lining
øB øA
AXR Flowtube
Grounding ring
Gasket for
User’s flange
3.3.3 Nominal Diameter 25 mm (1.0 in.) to
200 mm (8.0 in.), Flange Type
IMPORTANT
Use bolts and nuts in compliance with the flange
ratings. Be sure to choose a gasket with inner
and outer diameters that does not protrude
inside the piping (refer to Table 3.3.9). If the
inner diameter of the gasket is too large, or outer
diameter of the gasket is too small, fluid leakage
may result.
(1) Mounting Direction
Mount the flowmeter so that the flow direction of the
fluid to be measured is in line with the direction of
the arrow mark on the flowmeter.
IMPORTANT
If it is impossible to match the direction of
the arrow mark, the direction of the electrical
connection can be changed. Refer to Section
10.1 to do this properly.
In case the fluid being measured flows against
the arrow direction, refer to the parameter J20:
Flow Direction in this user’s manual.
(2) Tightening Nuts
Tighten the bolts according to the torque values for
the metal piping in Table 3.3.10. For PVC piping,
select an optional code of GA, GC, or GD, use
rubber gaskets and tighten the nuts to the torque
values for the PVC piping in Table 3.3.11.
For permeable fluids (such as nitric acid,
hydrofluoric acid, or sodium hydrate at high
temperatures), tighten the nuts according to the
torque values in Table 3.3.12.