Seeking advice on the coil issue of field instruments
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Why are the small tubes in front of the field instruments usually coiled several times?
Is it for use in condensation bends? Is leaving a margin an option too? Or is it for preventing expansion and bending? You didn’t explain it clearly; the image above will help analyze it for you.
Condensation bend, shock absorption, buffering – to reduce the impact of pressure on instruments
Its main functions are: condensation bend (to prevent liquid from entering the pressure gauge), shock absorption, buffering, and reducing the impact of pressure on the gauge
Why are some instruments used while others are not? I’d like to know
Depending on the requirements of the medium being measured, high-temperature and high-pressure media may be necessary, while ordinary media do not.