Mounting EjC50 With Direct Mount Seal - YOKOGAWA DPharp EJXC80A User Manual

NOTE
After completing the connections, close the
valves on the process pressure taps (main
valves), the valves at the transmitter (stop
valves), and the impulse piping drain valves,
so that condensate, sediment, dust and other
extraneous material cannot enter the impulse
piping.
(6) Impulse Piping Connection Examples
Figure 4.9 shows examples of typical impulse
piping connections. Before connecting the
transmitter to the process, study the transmitter
installation location, the process piping layout,
and the characteristics of the process fluid
(corrosiveness, toxicity, flammability, etc.), etc. and
make appropriate changes and additions to the
connection configurations.
Open Tank
Pipe (opened to atmosphere
at low pressure side)
Tap valve
Closed Tank
Figure 4.9 Impulse Piping Connection Examples
Union or flange
Vent plug
Tee
Drain valve
Drain plug
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<4. Installation>
4.6 Mounting EJC50 with
Direct Mount Seal
The transmitter is mounted on a process using its
high-pressure side flange as shown in Figure 4.10.
The mating flange, gasket, stud bolts and nuts are
to be procured by the customer.
Gasket
Nut
Figure 4.10 Transmitter Mounting
IMPORTANT
Please use a gasket with an inside diameter
(ød) that is greater than the diameter of the
diaphragm seal. If a gasket with a smaller
inside diameter is used, the diaphragm may not
function correctly. (Refer to 'Dimensions' in the
chapter 7.)
4-6
Stud bolt
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IM 01C25W01-01EN