A single piece stabber pipe is typically used when the loading arm connection would be to be horizontally oriented relative towards the railcar, whereas a two piece stabber pipe is vertically oriented. Note that single piece stabbers have one half, and two piece stabbers have two halves. Angle valves characteristic https://lpgservicestations82604.getblogs.net/67658982/lpg-station-piping-system-things-to-know-before-you-buy