What is loop or pigtail in an impulse line?
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Answer Posted / sreekanth
Friends....Pigtail is used only for protection of
instrument from temperature.
For pressure Damping we will use Pulsation Dampners.
Due to the loop, condensate is formed in the pigtail and
some part of fluid cannot be drained and remain in the
pigtail which will prevent the instrument all the time from
temperature from direct contact of the fluid.
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