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Quality Control

For projects requiring ASME certification, we have “PP”, “U”, and “S” stamps and National Board “R” stamp certification.

We believe that quality is “built-in” and not “inspected in”. To assure ourselves and our clients that we are performing to the highest standards, we follow a strict Quality Control Program. We employ full time personnel responsible for the implementation and adherence to the Quality Control Program.

Vessel - Diamond B Constructors Pipe Shop Fabrication Facility
Vessel - Diamond B Constructors Pipe Shop Fabrication Facility
Submerged arc welding – Diamond B Constructors Pipe Shop Fabrication Facility
Submerged Arc Welding - DBC
Flux core arc welding - Diamond B Constructors Pipe Shop Fabrication Facility
Flux core arc welding - Diamond B Constructors Pipe Shop Fabrication Facility
Fabricated Pipe Spools - Diamond B Constructors Pipe Shop Fabrication Facility
Fabricated Pipe Spools - Diamond B Constructors Pipe Shop Fabrication Facility

DBC has over one-hundred weld procedures that are used in welding Carbon Steel, Stainless Steel, Chrome-Moly, Titanium and High Nickel materials (P-1 thru P-51) with various processes (SMAW, GTAW, GMAW, FCAW, SAW, and Orbital Welding). All Procedures, as well as Welder qualifications, are qualified in accordance with ASME Section IX

Fabrication of a CO Boiler Economizer and the Upper Steam Generator Tubes

CO Boiler Economizer & Steam Generator Tubes - Fabricated in Bellingham, WA
CO Boiler Economizer & Steam Generator Tubes - Fabricated in Bellingham, WA
CO Boiler Economizer & Steam Generator Tubes - Fabricated in Bellingham, WA.
CO Boiler Economizer & Steam Generator Tubes -DBC
CO Boiler Economizer & Steam Generator Tubes - Fabricated in Bellingham, WA
CO Boiler Economizer & Steam Generator Tubes - Fabricated in Bellingham, WA