Propane refueling system

Fig. 4-9 A Propane Refueling System with Vertical Storage Tank. (Source Tom Gorman Company)...

Propane refueling systems do not need elaborate control systems. The dispenser controls operation of the transfer pump, and emergency shut-down switches should be mounted near the dispenser and at some location between 6.1 m (20 ft) and 30.5 m (100 ft) from the dispenser. 

Leak detection systems are not required for propane refueling systems but could be incorporated in the vicinity of the dispenser, near ground level since propane vapors are heavier than air. Like pipeline natural gas, propane is odorized so that leaks should be noticed by refueling personnel. 

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