Third Party Inspection And Witness Testing Of Valves Worldwide

Qtech Control provide highly experienced mechanical inspectors for witness testing and quality control of valves at many of the world’s most prominent valve manufacturing sites.  

 

Industrial valve manufacturing process typically involves forging or casting valve bodies and components, followed by machining, assembly, testing, and packing and preservation.  

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In general we attend witness and hold points stipulated in the agreed Inspection Test Plan (ITP), however we offer a comprehensive range of inspection services which we tailor to meet the requirements of individual clients.

 

​Services provided but not limited to:

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Client Representation at Pre Inspection Meetings.

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Witness Testing:  

 

• Material Testing (Positive Material Identification (PIM)

• Traceability / Document Review (Material Certificates)​

 

Non Destructive Testing (NDT): 

• Visual Inspection (VT)

• Dimensional Control

• Ultrasonic Testing (UT)

• Magnetic Particle Inspection (MPI)

• Liquid / Dye Penetrant Inspection (LPI / DPI)

 

Functional Testing:

 

• Hydrostatic Pressure Testing (shell and seat)

• Fugitive Emissions Test (FET)

• Cryogenic Testing (Leakage below certain low temperature levels)

 

Final Inspection:

 

• Coating Inspection – Dry Film Thickness (DFT), RAL Check.

• Tagging and Marking Inspection.

• Final Inspection – Checking valves and accessories against the Packing List.

• Preservation – Witnessing the application of corrosion inhibitor for example.

• Witnessing protection for flange faces for example.

• Packing and Marking Inspection – Witnessing the safe and secure packing / chocking process and ensuring marking against requirements.

• Document Review (Manufacturing Record Book Review (MRB)).

 

Expediting:

 

Investigating production delays / causes / solutions to bring despatch deadlines back on track.

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We also provide 3.2 inspection and certification of valve bodies.

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