Tar loading
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Should the pipes behind the pump be cleaned with steam after the tar has been loaded?
Under normal circumstances, steam scavenging is required
If loading is stopped for an extended period, purging is necessary; otherwise, the pipes will get clogged
Tar loading is generally carried out in batches. After the tar loading is completed, the tar in the pipes must first be drained, followed by purging with steam; otherwise, the tar tends to solidify, especially in winter.
It needs to be blown, otherwise it will get clogged easily