2-22
Chapter 2 Installation of this Device
2-2-8 Installation of the Flushing Ring (Model DV) to a Flanged Transmitter
(Models JTE, JTH, JTS, and JTC)
(1) Function and structure
This chapter describes the function and configuration of the optional flushing ring for the remote
seal type and flange type transmitters. If you are a first-time user of the flushing ring, read this
section to understand the basics.
(i) Function of the flushing ring
By sandwiching the flushing ring between the flanged connection type transmitter and the mating
process flange, the vent/drain valve can be accessed without removing the process flange during
adjustment and maintenance..
Figure 2-27. Example of Typical Flushing Ring
(ii) Name and composition of each part
The flushing ring consists of a ring, a vent/drain plug, and a vent/drain bushing. Figure 2-28 shows
the structure and name of each part.
Figure 2-28. Flushing Ring Components
- Ring
Used by sandwiching it between the diaphragm base of the transmitter and the mating process
flange.
- Vent/drain plug, vent/drain bushing
Used when removing drain or venting pressure. (See Figure 2-28 for details)
Flushing Ring
Vent/Drain Valve
Ring
Vent/Drain Plug
Vent/Drain Bushing
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