In mass. does oil tank outfitting go shuttoff, filters,osv,fireomatic copper

[d trois]

In mass. does oil tank outfitting go shuttoff, filters,osv,fireomatic copper line in orange sleeve in 4" pvc under floor connected to fireomatic at mpump of burner?

[hj]

4" PVC seems to be "overkill" to be a sleeve for a 3/8" copper line.