2-36
Chapter 2 Installation of this Device
(2) Open Tank Piping
(i) Recommended piping example
A typical open tank liquid level piping example is illustrated below.
Be sure to implement the following items.
• Connect the high pressure side of the device to the lower portion of the tank, and open the low
pressure side to the atmosphere.
• Install the device in a location that is lower than the minimum level of the liquid to be measured.
• After doing the piping work, confirm that there are no pressure leaks in the connecting pipes,
the three-way manifold valve, the transmitter, etc.
• For the purpose of connecting pipe maintenance, use T-joints to attach drain valves.
Liquid Surface
Liquid Surface
Open Tank
Open Tank
Master Valve
Master Valve
Open to
Atmosphere
Three-Way
Manifold Valve
JTD Model
Transmitter
JTG/JTA
Model
Transmitter
Drain Plugs
Drain Plug
Drain Valve
Drain Valve
T-Joint
T-Joint
High
Pressure
Side
Low
Pressure
Side
Figure 2-41. Liquid Level Measurement (Open Tank) Piping Example
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