LPG tank legend section plan cad drawing

LPG tank legend section plan follwing detail are mension for understand the detail.
1 3 "ventilation pipe safety valve
2 pump suction pipe ∅1¼ "
3 return pipe by pass- flow excess valve ∅1¼ "
4 LPG liquid download ∅1¼ "
5 steam return download ∅ 3/4 "
6 steam dispenser return ∅3 / 4 "
7 liquid level valve with two manometers LPG discharge
8 temperature thermometer