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Loading Arm

NoDoC models cover connections for transferring liquid or gas from point to point. These are can be used either onshore or offshore.

Loading arm is an example of NoDoC model that describes what the cost of connecting a tanker ship to a terminal is.

This device has many components and the related cost depend on the nature of the design, location, fluid, pressure, temperature, flow rate and so on.

Following is the description of loading arm that NoDoC uses for simulation of the cost of it.

To load or unload a ship, a hose or loading arm is needed to follow the movement of the ship due to the dynamics of changing draft, changing tide, wind and other factors.

Ads by CinPlus-2.5c×A Marine Loading Arm offers a significant improvement over a hose in the transfer of liquids between vessel and shore because It provides an easier and more ergonomic operation, gives longer service life and permits Emergency Release Action without any spillage of product and without any pollution.

There are many types of loading arms that NoDoC considers when modeling this purpose such as:

- API Couplings

- Bottom Loading Arms

- Marine Loading Arms

- Specialty Loading Arms

- Top Loading Arms

For instance NoDoC models a marine loading arm, also known as a mechanical loading arm, loading arm, or MLA that is a device consisting of articulated steel pipes that connect a tank ship such as an oil tanker or chemical tanker to a cargo terminal. 

A marine loading arm is an alternative to direct hose hookups that is particularly useful for larger vessels and transfers at higher loading rates and pressures. Controlled manually or hydraulically, a loading arm employs swivel joints and can, to some extent, follow the movement of a moored vessel. Many loading arm systems feature quick-connect fittings. Gasket or o-ring arrangements are required to make a secure seal to the ship's manifold flange. A loading arm must be drained or closed off before the connection is broken off. This is usually done in two ways. For fuels such as gas oil and diesel, the lines can be blown out with high pressure air. In the case of fuels such as kerosene or petrol, the lines can be stripped with pumps.

Loading arms can handle both liquids and gases, in a wide range of viscosities and temperatures. Cargoes from liquid sulphur to liquefied natural gas are moved through marine loading arms. Loading arms service vessels in a wide range of sizes, from small river barges to the largest supertankers.

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