Piggy Back Marine Loading Arm

Piggy Back Marine Loading Arm is specially developed for a berth handling LPG or any other similar products stored under pressure. The vapor return pipe could be a separate loading arm, but it is common for an LPG loading arm to be designed with a 'piggy-back' vapor return line to save space and cost of ownership, in other words, two loading arms in one. Piggy Back Marine Loading Arm refers to MLA that has a vapor return system to take the vapors displaced from a tanker during loading and unloading. The flow of returned vapor should be metered for maintaining pressure balance. The returned vapor can be routed to the storage vessel from which product is exported. Mostly, Piggy Back Marine Loading Arm is used for refrigerated LPG. Piggy Back Marine Loading Arm for products stored under pressure also apply to the refrigerated (or semi-refrigerated) LPG similar product, and for other products stored at below ambient temperature. The future design consideration for Piggy Back Marine Loading Arm handling (semi) refrigerated products is the provision of a liquid return line to permit the chill down of the supply system prior to loading. At present, we have developed and manufactured kinds of Piggy Back Marine Loading Arms for various customers' needs.