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Fabrication of High Pressure Carbon Steel ASME Vessels for the Military

Palms Vessel
[click to enlarge]
Palms Vessel
  Palms Vessel
[click to enlarge]
Palms Vessel

We were recently contracted by a military customer to custom fabricate these twin carbon steel vessels. Designed for use as hydro-pneumatic vessels, they would contain hot water and require special finishes, coatings, and insulation. Composed of an A516 GR70 carbon steel, all of the vessel components were formed in-house, utilizing our advanced shearing, metal forming, and welding capabilities.

After assembly, the vessels interior surfaces received a near-white metal blast per SSPC-SP-10 standards, followed by the application of a 646 mill white Macropoxy coating. The exterior surfaces were prepared with SSPC-SP-6 commercial blasting, and finished with a Durethane Fast Clad coating, prior to insulation. The finished vessels featured dimensions of 72 in diameter and 19.5 in height, with a capacity of 4,620 gallons each, and can accommodate water up to 120°F, at 400 psi. This vessel project met ASME Section VIII, Div. 1 standards and was completed, from fabrication to installation, in just 14 weeks. For more information on this project, see the table below or contact us directly.

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Highlights of this Carbon Steel ASME Vessel Fabrication Project

Product Description These are Horizontal Hydro-Pneumatic Vessels.
Vessel Fabrication
Capabilities Applied/Processes
  • Welding
  • Shearing
  • Forming
Surface/Interior Prep
Metal Blasting
Macropoxy 646 and Durethane Coatings
Overall Part Dimensions O.D.: Ø 72
Height: 19-6
Features Design Pressure: 400 psi
Design Temp: 120°F
Supports: Skirted
Stored Material: Water
Material Used Carbon Steel: A516 GR70
Material Finish Interior surface prep: SSPC-SP-10 near-white metal blast
Interior surface coat: Macropoxy 646 Mill White
Exterior surface prep: SSPC-SP-6 commercial blast
Exterior topcoat: Durethane Fast Clad
In process testing/inspection performed Radiographic Examination
Industry for Use Government
Volume 4,620 Gallons Each
Delivery/Turnaround Time 14 weeks
Delivery Location California
Standards Met Customer Specifications, 2D CAD Drawing
National Board Registered
ASME Section VIII, Div. 1
Product Name Hot Water Vessel
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