Azbil VDC User Manual

Instrument installation Azbil Corporation
2-34 Model MTG11A/18A, MTG11B/18B, MTG14C
2. Use this method to install the detector using a protective plate to prevent PVC
pipe from being deformed or damaged when the bolts are tightened to the
specified torque.
Install the protective plate between the outer side of the PVC flange and the
detector, as shown in Figure 2-31. The protective plate protects the PVC pipe
from deformation or damage when secured at the specified torque. The torque
level is unrelated to the pipe or grounding ring material. See Table 2-5 on page 2-
27 for the appropriate torque. For the internal diameters of the gaskets, see Table
2-6 on page 2-29.
3. Use this method to install the detector using a low-fastening torque and rubber
gaskets.
Remove the grounding ring from the detector, insert a rubber gasket 0.5 to 1.0 mm
thick between the lining and the grounding ring, then reinsert the grounding ring.
Then remove the PTFE gasket, and attach a gasket 3 to 4 mm thick instead. Under
these conditions, attach the detector to the pipe as shown in Figure 2-32. Fasten
the bolts to a torque that provides a leakproof joint
Figure 2-31 Installation using SUS material grounding ring (with protective plate)
Figure 2-32 Installation using SUS material grounding ring (with rubber gasket)
Lining
Grounding
ring
Gasket
Protective plate
Lining
Rubber gasket
(0.5 - 1 mm)
Grounding ring
Rubber gasket
CM2-MTG300-2001.book 34 ページ ２０１５年９月２９日 火曜日 午前１０時１４分

Azbil VDC Specifications

General

Brand	Azbil
Model	VDC
Category	Measuring Instruments
Language	English