User's Manual AXF Magnetic Flowmeter Integral ... - Yokogawa

3. INSTALLATION
Table 3.3.3
Tightening torque values for Union Joint
Type and Permeable Fluids
Gasket
Connecting fitting
Union joint nut
*Piping
Size mm (inch) Torque (N-m / {kgf-cm} / [in-lbf])
2.5 (0.1) 11 to 15 / {112.2 to 153} / [97.36 to 132.8]
5 (0.2) 11 to 15 / {112.2 to 153} / [97.36 to 132.8]
10 (0.4) 17 to 23 / {173.4 to 234.5} / [150.5 to 203.6]
T0304.EPS
3.3.2 Nominal Diameter 2.5 mm (0.1
in.) to 40 mm (1.5 in.), Wafer
Type
*Mounting base
*: To be provided by user
F0309a.EPS
IMPORTANT
Use bolts and nuts in compliance with the flange
ratings. When stud-type through-bolts are used,
be sure the outside diameter of the shank is
smaller than that of the thread ridge. Be sure to
choose a gasket with an inner diameter that
does not protrude inside the piping (refer to
Table 3.3.13). If the inner diameter of the gasket
is too large, however, fluid leakage may result.
Horizontal mounting
F0309b.EPS
(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
Figure 3.3.1
Vertical mounting
F0309c.EPS
Mounting Procedure for Union Joint Type
Table 3.3.2 Tightening torque values for Union Joint
Type
Apply these tightening torque values when the gaskets
are Valqua #7020 (standard) or alkali-resistant gaskets
for the metal piping (optional code GF).
Size mm (inch) Torque (N-m / {kgf-cm} / [in-lbf])
2.5 (0.1) 9 to 12 / {91.77 to 122.4} / [79.66 to 106.2]
5 (0.2) 9 to 12 / {91.77 to 122.4} / [79.66 to 106.2]
10 (0.4) 14 to 18 / {142.8 to 183.5} / [123.9 to 159.3]
T0303.EPS
If it is impossible to match the direction of the
arrow mark, the direction of the electrical connection
can be changed. Refer to Section 5.1 to
do this properly.
In case the fluid being measured flows against
the arrow direction, refer to the parameter J20:
Flow Direction in the user’s manual of the
AXFA11 Magnetic Flowmeter Remote Converter
(IM 01E20C01-01E) or the AXFA14 Magnetic
Flowmeter Remote Converter/AXF Integral
Flowmeter [Software Edition] (IM 01E20C02-
01E).
(2) Mounting Centering Devices
To maintain concentricity of the flowmeter with the
pipes, install centering devices on the Mini-flanges of
the flowmeter. Use the appropriate centering devices
according to the nominal diameter and the flange
ratings.
3-6
IM 01E20D01-01E