LP Gas Fill ASME Tank possible overfill?
I have a 1998 F53 chassis with a 14 Gal Manchester tank. The sticker indicates it has some sort of overfill protection despite the shutoff handle being "pinwheel" shaped. Recently filled up my tank...
Forum Discussion
1. You cannot over pressurize the ASME tank.
2. It is normal for the fill nozzle to squirt/puff when removing the fill nozzle
3. The CORRECT procedure for filling all ASME tanks is to always open the 80% valve when filling. Your Tank DOES have a "80" percent liquid shut off valve. But they can still malfunction or allow slightly too much liquid into the tank
4. The small 80% valve is always opened and will spew vapor while filling. Its purpose during filling is to let you SEE if the tank has overfilled before the Auto shut off kicks in. When filling if you see liquid start to spew out that 80% valve you STOP the fill. Immediately. IF your filler stopped filling because the Auto shut off kicked off, you are OK. When full, it is normal for the 80% valve to then spew a little liquid.
5. I would leave the Shut off valve closed before driving and when you get home, open the valve and then run the Furnace or Water Heater for about 30 minutes. That will burn off any small excess liquid.
6. It is always not a good idea to travel with a freshly filled full ASME tank with the shut off valve open. The reason being when full and driving, the Liquid LP can slosh in the tank and then liquid can slosh out thru the cut off valve and get into the LP regulator which will cause the Rubber diaphragm to freeze and then the regulator will leak and have to be replaced. Doug
2. It is normal for the fill nozzle to squirt/puff when removing the fill nozzle
3. The CORRECT procedure for filling all ASME tanks is to always open the 80% valve when filling. Your Tank DOES have a "80" percent liquid shut off valve. But they can still malfunction or allow slightly too much liquid into the tank
4. The small 80% valve is always opened and will spew vapor while filling. Its purpose during filling is to let you SEE if the tank has overfilled before the Auto shut off kicks in. When filling if you see liquid start to spew out that 80% valve you STOP the fill. Immediately. IF your filler stopped filling because the Auto shut off kicked off, you are OK. When full, it is normal for the 80% valve to then spew a little liquid.
5. I would leave the Shut off valve closed before driving and when you get home, open the valve and then run the Furnace or Water Heater for about 30 minutes. That will burn off any small excess liquid.
6. It is always not a good idea to travel with a freshly filled full ASME tank with the shut off valve open. The reason being when full and driving, the Liquid LP can slosh in the tank and then liquid can slosh out thru the cut off valve and get into the LP regulator which will cause the Rubber diaphragm to freeze and then the regulator will leak and have to be replaced. Doug
