Quality

Since earning our ASME “U” Stamp in 1968, James Machine Works has designed and manufactured ASME Section VIII, Division 1 pressure vessels for a wide range of industrial applications. We also hold the ASME “R” Stamp, allowing our experienced team to perform certified repairs and alterations on existing unfired pressure vessels while meeting the highest industry standards for quality and safety.

Built-In Product Quality

At James Machine Works, we believe quality starts with every step of the manufacturing process. Instead of relying on final inspections alone, we build quality into every project from the beginning. As a result, we consistently deliver products that meet or exceed our customers’ specifications and expectations.

Our experienced quality management team oversees every phase of production and enforces our documented quality control system. Additionally, our quality control department operates independently from production. This approach ensures objective inspections and consistent results on every project.

Quality begins with accurate order entry and continues through engineering, material procurement, fabrication, and final inspection. Furthermore, we develop detailed inspection and test plans for every project to verify compliance with customer requirements and industry standards. We also maintain complete documentation through our formal Quality Control Manual and proven operating procedures.

Because we manage quality assurance in-house, we maintain greater control over every stage of production. Consequently, we deliver precision fabrication, industrial machining, ASME pressure vessels, and custom manufacturing solutions with exceptional quality, safety, and reliability. Our commitment to continuous improvement helps us exceed customer expectations and deliver dependable results on every project.

In-process inspection

In-process inspection with designated “hold” points is begun at start of fabrication and continues with production through completion. This inspection includes check of material verification, cutting, forming, fit-up, layout, and welding. Non-destructive examination is included during fabrication and upon completion. Multiple in-process inspections are performed. Magnetic particle, ultrasonic, and radiographic examinations are sub-contracted to third-party, qualified, and approved NDE companies and certified laboratories. Final dimensional and visual inspections are performed upon completion of fabrication by Quality Control inspectors. Pressure vessels constructed under the guidelines of the ASME Code are subjected to authorized third party inspection. JMW is presently contracted with the HSB, CT as the third party inspection agency.

Rigorous Testing

Upon completion of fabrication the vessel is subjected to a hydrostatic test. All testing is performed in accordance with Section VIII, Division 1 of the ASME Code. A vessel data sheet, Form U-1, is completed and signed off as meeting all Code compliances by the Quality Control Department and the authorized third party inspector. If surface preparation and painting is a requirement of the specifications, the vessel enters the painting facility to be grit blasted and coated per specifications. Environmental monitoring is conducted during the surface prep and coating application. Anchor profiles and millage readings are verified to NACE standards.

API Tanks

In-House Painting

MACHINE SERVICES