Are there any standards for the excuses given by tank trucks?
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Are there any standards for the reasons given for unloading tank trucks? ? It is mainly the engineering diameter and shape of the unloading port
For the tank car in liquefied gas form, the liquid phase has a diameter of DN50, while the gas phase has a diameter of DN25； If they are liquid tank trucks, the diameter is always DN80; basically, these are the only two options.
The oil unloading fittings also come in DN100
:victory: A question I need along with its answer, haha. Thank you to the original poster and everyone else~~
The meteorological interface for liquefied natural gas tank trucks is DN32, while the liquid phase interface is DN50
For liquid tank trucks, I have seen DN80, DN65, and DN50 models used together.
I went out and found an LNG tank truck specifically to measure it; the liquid-phase interface is DN50, the gas-phase pipeline is DN40, but the flanges are also DN50.
The DN50 and DN25 connections mentioned on the 2nd floor are ones I have seen on liquefied petroleum gas tankers.
The interface we install on the tank trucks at our factory is the same as what was specified on the second floor: DN50 for the liquid phase of liquefied gas, DN25 for the gas phase, and DN80 for the liquid tank trucks.
It seems that there are no specific regulations in China specifying this; currently, liquefied gas tank trucks use DN50 for the liquid phase and DN25 for the gas phase, with no disputes on this； The oil transfer interfaces are DN100 for the liquid phase and DN80 for the gas phase, with no disputes regarding this ； The unloading ports for oils and liquid chemical products are available in DN100 and DN80 sizes ； For LNG interfaces, both the gas and liquid phases are generally DN50 in size.