Is it a good practice to install vacuum breaker on crude pipeline

[ruifeng]

Currently we are doing a crude transfer line design from jetty to the onshore tank field. When finished the unloading crude, we use a stripping pump to de-inventory the crude transfer line (30"). A vacuum breaker is installed on the crude pipeline for the stripping operation. Is it a good practice to install vacuum breaker for the crude service (bring air into the crude vapour)? My concern is that the risk of either a detonation or deflagration in the pipe. Do we have guidelines or standard for this type of operation?

 

[786392]

Unless it is utilization of some inert media as vacuum breaking resource.

We are inviting trouble.May be heading to disasters in criminal way.

Best Regards
Qalander(Chem)