While unloading LPG Tanker

 

  • Unload the tanker only after sunrise and before sunset and never during heavy rains, thunderstorms or lightning.
  • Check all documents relating to the tanker, such as LPG transport license, TREM card, SRV test report, driving license, invoice of LPG etc.
  • Weigh the LPG tanker on the weighbridge and record readings properly.
  • Fix spark arrestor to LPG tanker exhaust pipe before the tanker enters the LPG yard.
  • Park the tanker on hard stand and apply hand brakes. Put wheel chokes on all the four wheels and then position the DCP fire extinguisher near unloading point.
  • Turn 'OFF' the master switch of battery.
  • Exit gate of LPG yard must always remain open during unloading operation.
  • Ensure proper earthing connections for tank and truck body.
  • During unloading, the tanker driver and LPG yard operator should always be present at the site.
  • Connect both liquid and vapour balancing hoses to the tanker.
  • Check the rotogauge reading of storage tanks as well as that of the tanker. Record volume, temperature and pressure of LPG tanker and static tanks.
  • Open the liquid and vapour valves of the tanker slowly and vent out air trapped in hose through vent pipes.
  • Unload the tanker first by pressure difference. When pressure is balanced, start the unloading pump. Remember to open the vapour balancing line while unloading through pump.
  • Monitor the liquid level in static tanks by checking rotogauge at regular intervals. Ensure that static tanks are not filled beyond 85%.
  • After unloading of the tanker is complete, check rotogauge of static tanks and tankers and stop unloading pump.
  • Close the ball valves of tanker and fill point. Empty LPG from unloading hoses by venting off and disconnecting hoses.
  • Check if the earthing connection and LPG hoses are disconnected and wheel chokes are removed before moving the tanker.
  • Weigh the tanker again. Difference between initial weight and final weight is net gas receipt.
  • LPG tanker driver must check brake pressure and then move the tanker from the LPG yard.