What is the minimum number of dip pipes required on a vehicle-mounted LPG tank?

For vehicle-mounted LPG tanks, the minimum requirement is one dip pipe. A dip pipe is essential for safely and accurately measuring the amount of liquefied petroleum gas (LPG) within the tank. The presence of at least one dip pipe facilitates the gauging process, allowing operators to determine how much fuel is available for use.

Having more than one dip pipe is generally not necessary for meeting the basic operational requirements, although some systems may utilize additional dip pipes for redundancy or to access different levels within the tank. The primary function of the dip pipe is to ensure that fuel can be drawn safely from the tank, and one appropriately designed and fitted dip pipe suffices for that purpose in most vehicle-mounted setups.