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Truck Loading Arms

Safe tank loading of large quantities of fluids and dangerous chemicals that require stringent containment

Fluids are unloaded from tankers into tank trucks or railcars in accordance with their category or characteristics, and are then transported to a different location. In this, pier loading arms are used to ensure safe and rapid loading operations. Different pier loading arms are used for different loading methods, depending on the type and state of the fluid to be loaded.

Loading method Loading position Arm type Description
Open Top TSLA
VRA
Method in which the fluid is loaded through open hatches on the top of tank trucks or railcars. Capable of transferring large quantities in a short period of time, and frequently used for petroleum and chemicals.
Closed Top SBLA
CBLA
Loading in which the fluid is not exposed to the air. This is suited to loading of pressurized or toxic fluids. This has two methods: "top loading" and "bottom loading," in which the tank is loaded from the top and bottom respectively.
Bottom

Truck Loading Arms for LNG

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Loading Arms (Open)

TSLA(Torsion Spring Loading Arm)

This style uses the reactive force of a torsion spring to provide balance. Manual operation of loading is easy, as are maintenance and adjustment, and this loading arm has a long track record of performance with petroleum and chemicals.

VRA(Vapor Recovery Arm)

This incorporates functionality for the recovery of vapor (volatile components) emitted during loading, and can be used for loading highly volatile fluids. Recovered vapor can be reutilized or processed within the customer’s plant. Almost no vapor is released into the atmosphere during loading, and this has garnered attention as a method by which to prevent air pollution.
Smooth operation is possible for both rotational movement, which is manual, and vertical movement, which uses air cylinders.

 

 

Overflow Prevention Valve

This safety device requires no power source, and prevents overflows of liquid from tank trucks resulting from damage to, or mishandling of loading equipment. In normal conditions, the valve can be operated manually.

 

 

 

Loading Arms (closed)

SBLA(Spring Balanced Loading Arm)

This has a high-capacity balanced configuration utilizing the reactive force of multiple compression springs, providing outstanding ease of operation for closed loading. The end of the loading arms can have attached couplers suited to employed tank trucks and railcars, enabling faster and safer loading operations.

CBLA(Counter Balanced Loading Arm)

A balanced structure using counterweights ensures a simple configuration, and this can therefore be used in loading of special cryogenic liquids. In particular, the specially-designed swivel joints that have been developed for use with cryogenic temperature liquids and that are widely used with LNG enable safe and rapid loading operations.