Regarding the purging issue of the pressure tap pipe
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I’m facing the following situation now: 1. The main pipeline has been purged； 2. The pressure lead pipe of the transmitter has not been purged yet. How should one operate the purge pressure guide pipe at this time? I’m stuck; I hope someone experienced can give me some advice. I’ll be online at night.
Can’t we inflate the main pipeline and disconnect the transmitter and pressure tap?
The pressure lead pipe should be purged during pipeline purging; if purging is not carried out, it can be drained before operation to ensure that the pressure lead pipe remains unobstructed.
When purging the main pipeline, close the valve at the pressure tap; the pressure tap is purged separately
Then stop blowing, otherwise it will pollute the main pipeline； If it’s a one-time use valve that can be removed, then just blow on it.
Then stop blowing, otherwise it will pollute the main pipeline； If it’s a one-time use valve that can be removed, then just blow on it.
Then stop blowing, otherwise it will pollute the main pipeline； If it’s a one-time use valve that can be removed, then just blow on it.
Disconnect the pressure lead in front of the transmitter and use non-metallic tools to cause vibration in the pipeline, thereby accelerating the removal and expulsion of debris inside it; this also serves to verify whether the positive and negative pipelines of the differential pressure transmitter are connected correctly.