Page 14: of Maritime Reporter Magazine (September 1991)

Five Trinity Industries

Subsidiaries Team

To Build LPG Barges

In what may be a record in ship- building teamwork, five subsidiar- ies of Trinity Industries, Inc., are cooperating in the construction of two 260-foot liquid propane gas (LPG) barges for Harvey Gulf, Inc.,

Harvey, La.

The barges will be constructed, erected, and painted at Gretna Ma- chine and Iron Works, Inc., Harvey, with components manufactured on site along with elements from the following Trinity companies: Equi- table Shipyards, New Orleans, La., sandblasting and preconstruction primer; Equitable Shipyards,

Madisonville, La., automated panel line fabrication; Trinity-Beaumont,

Beaumont, Texas, tank placement assistance; and Beaird Industries,

Shreveport, La., manufactured LPG tanks.

Each barge will be fitted with two 213-foot-long independent Beaird

LPG tanks with inside diameters of 16 feet 9 inches, and a working pres- sure of 266 psig (pounds per square inch gauge). Each barge can carry 15,000 barrels of LPG. The tanks will be shipped by rail from Shreve- port to Beaumont because they are too large to negotiate some tight turns in the Louisiana railway sys- tem.

John Dane III, president of the

Trinity Marine Group which in- cludes 10 shipyards (Beaird is part of another Trinity segment), said the team effort is a good example of

Trinity's efforts to hold down com- pany and customer costs by reduc- ing redundancy or duplication within its plants.

Both barges are expected to be delivered in the third quarter of1992.

For free literature on the facili- ties and capabilities of Trinity Ma- rine Group,

Circle 36 on Reader Service Card

L&C Associates Installs

Dehumidification System

Aboard USNS Mississinewa

L&C Associates of North Hamp- ton, N.H., specialists in marine de- humidification systems, have re- cently completed the design and in- stallation of a dehumidification sys- tem aboard the USNS Mississinewa in Norfolk, Va. The Mississinewa and four other Neosho Class Oilers are being placed in the Reserve Fleet as Avondale Shipyards continues the scheduled construction of 18 Kaiser

Class Oilers.

Dehumidification is essential aboard the vessels of the Ready Re- serve Fleet because maintaining relative humidity at or below 35 percent will inhibit moisture-in- duced corrosion. Dehumidification systems designed by L&C Associ- ates utilize disiccant dehumidifiers and a spray applied moisture bar- rier to maintain the integrity of the dehumidified spaces. This combi- nation of dehumidification and seal- ing will maintain the ship's present condition for the duration of the layup.

L&C's dehumidification system circulates dehumidified air to both the forward and aft deckhouses, machine space, pump rooms, cargo control areas, storerooms, ship ser- vice areas, and all refrigerated stor- age space.

After completing the installation of the dehumidification system, L&C technicians created a vapor barrier to prevent moisture from entering the dehumidified spaces through vents, skylights or hatches. All open- ings leading to the dehumidified spaces were sealed with PSS, a spray applied vinyl plastic. PSS is as ef- fective as sheet metal blanks in keep- ing moist air from entering the de- humidified space. But since PSS can be installed more quickly and removed without any special tools,

There's a

PSS greatly minimizes the cost of installation and subsequent reacti- vation.

L&C Associates is the leading provider of dehumidification and sealing systems to marine clients and has provided dehumidification systems for more than 120 clients for both military and commercial applications.

For further information and free literature from L&C Associates,

Circle 32 on Reader Service Card

WESTFALIA system that answers every oil purification A water c need Highest oil purity Westfalia Oil Purifiers remove water and sedi- ment from heavy fuel oils at top efficiency. . .at densities up to 1010 kg/m3 and cat fines down to 1 ppm. Our exclusive two-stage (JNITROL /SECCITROL system gives unmatched purity even under widely varying feed conditions.

UMITROL, with no ring dams, performs the basic . oil/water/sol ids separa- tion. SECGTROL assures maximum solids and water removal . . . while monitoring de-sludging intervals. Together, they provide the highest HFO quality now obtainable.

Top reliability.

Built-in ruggedness and sturdy design give

Westfalia Oil Purifiers a record of reliability unmatched by any com- petitive system. . . perfect for tough marine service conditions.

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Westfalia Oil Purification

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Westfalia is proud to be part of the ongoing construction program of the new and growing U.S. Navy. discharge, oil break-over, failure to shoot, motor temperature, vibration, and excessive number of second-stage solids or water discharges.

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Preassembled modules.

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September, 1991

Circle 317 on Reader Service Card 16