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Manufacturer Quality Control Standards

Metal Component with Delta Controls Logo Etching

As an ISO 9001:2015 certified company, Delta is continuously seeking to improve the quality of our products, services, processes, and culture. Our commitment to quality encompasses a variety of company efforts and investments to ensure the evolving needs of our customers are continuously met.


Delta’s products are thoroughly engineered, procured, manufactured, and tested to meet the requirements of our rigorous quality control standards. Through our experienced documentation and testing team, Delta products are available with a variety of documentation, testing, and certification options offering detailed manufacturing records.

Testing / Testing Certificate

  • Non-Destructive Evaluation / Testing (NDE/NDT)
    • Liquid Penetrant Testing (PT)
    • Conventional Radiography Testing (RT)
    • Ultrasonic Testing (UT)
    • Visual Testing (VT)
    • Leak Testing (LT)
    • Mechanical Testing
    • Dimensional Testing (DT)
    • Factory Acceptance Testing (FAT)
  • Flow, Pressure, or Temperature Performance Testing (including empirical data of test)
  • Flow, Temperature, Pressure, or Level Single Point/ MultiPoint Calibration Testing
  • Post Weld Heat Treatment (PWHT)


  • Manufacturing Record Books
  • Examination and Testing Procedures
  • Monthly Progress Reports
  • Inspection Test Plans (ITP)
  • Material Test Reports (MTR)
  • Bill of Materials (BOM)
  • Welding Procedure Specification (WPS)
  • Procedure Qualification Record (PQR)
  • Dimensional Outline Drawings For Approval / Record
  • Name Plate Drawings
  • Quality Assurance Manual (QAM)
  • Certificate of Origin (COO)
  • Spare Parts for Commissioning (SPIR)

**Additional testing/certification/documentation available, please contact Delta for more information**


Delta’s investment in quality is found throughout the company infrastructure, including a designated quality control testing room. Each product is thoroughly tested to our internal quality standards to ensure quality, compliance, accuracy, and reliability in this designated space. The quality control testing room utilizes testing equipment specifically engineered for Delta products ensuring precision and superior quality standards.

Delta Controls Corporation

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