Marine Loading Arm (With Vapor Line)
Operating method: manually operated, hydraulically operated
Supporting structure: independent support
The double-arms marine loading arm is specially designed with a vapor line, which allows for safe transportation of volatile media between the terminal pipeline and the vessel’s pipeline. During the process of fluid transfer, the design of the loading arm allows it to accommodate the drift and movement of the tanker or ship within its predetermined range without damaging the equipment. In order to prevent drifting past the design range, a position monitoring system triggers audible and visual warnings; for added protection, an emergency release system can be installed. The emergency release system is triggered when the tanker exceeds the design range, effectively protecting the loading arm and the pipeline from an accidental damage. Once the emergency disengagement system is activated, the valves at both ends separate and close rapidly, ensuring minimal material leakage.
The double-arm marine loading arm is suitable for loading or unloading the ships and vessels at a tanker berth. Designed with a vapor return line, this marine loading arm is suitable for transferring liquefied natural gas (LNG), propane and other highly volatile media.
- Apex Swivel Joint
- Inboard Arm
- Inboard Arm Support
- Removable Elbow
- Inboard Arm Drive
- Counterweight
- Outboard Arm Drive
- Cable Sheave
- Locking Device
- Connection Flange
- Drain Nozzle
- Base Plate
- Riser
- Slewing Drive
- Triple Swivel Assembly
- Outboard Arm
- Vapor Return Line
- Outboard Arm Drive
- Apex Sheave
- Nominal diameter: DN80-DN600 (3”-16”)
- Design pressure: -0.6~10MPa
- Design temperature: -196℃~ 250℃
- Pipeline material: carbon steel/stainless steel/PTFE lined low-temperature carbon steel
- Explosion-proof grade: ExdII BT4, Protection grade: IP65
- Hydraulic quick connect-disconnect coupler (QCDC)
- Emergency release coupling (ERC)
- Heat tracing and insulation
- Position monitoring system
- OCIMF: Design and Construction Specification for MLA
- BS EN 1474: 2008 Design & Testing of Marine Transfer Systems
- Shell DEP Standard: Amendments / Supplements of Design and Construction Specification for Marine Loading Arms.
