Azbil MagneW FLEX+, User Manual

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Installation Azbil Corporation
2-22 MagneW
FLEX+/PLUS+
Electromagnetic Flowmeter Detector
2.4.10: Installation on a PVC pipe using non-SUS
grounding ring material
The installation methods described in this section are for installation on a PVC pipe
using non-SUS grounding ring material. For the installation method corresponding to
any other combination of materials, refer to Table 2-5 on page 2-12.
PTFE gaskets are provided for this type of installation. If you supply the gaskets,
Azbil Corporation recommends non-rubber gaskets such as joint sheet or PTFE.
Although rubber gaskets can be used, they are not recommended. See page 2-24 for
installation using rubber gaskets.
CAUTION
The use of rubber gaskets and a lower fastening torque is not recommended and
can cause insufficient surface pressure between the lining and the grounding ring,
resulting in leakage.
If tightening the bolts at the specified torque threatens to warp or damage the PVC
pipes, you will need to use a protective plate. See page 2-23 for installation of the
protective plate.
To install a wafer detector on a PVC pipe using non-SUS grounding ring
material with a specified fastening torque:
• Install the detector as shown in the following illustration. The torque level for
tightening the bolts is not related to the gasket material.
See Table 2-1 on page 2-7 for the appropriate torque.
See Table 2-2 on page 2-10 for the inner diameter of the gasket.
Lining
PTFE gasket (supplied)
Grounding ring
Figure 2-18 Installation on a PVC pipe using non-SUS grounding ring material