Quality & Testing

We will strive to offer you the best possible service, and bring you the highest quality products.​

The quality of our products and services is the main goal: we do this through a total commitment to continuous improvement of our processes and investments in staff, training, facilities, equipments, software and business practices.

The main quality certifications Calobri srl achieved are:

  • ISO 9001:2015 with TUV Italy.
  • Pressure Equipment Directive 97/23/EC
  • ATEX 94/9/EC
  • API Spec 6A
  • API Spec 6D
  • API Spec 600

Internal qualified personnel:

  • PT and MT according to EN 473
  • PT, MT and UT according to SNT TC 1A
  • FE according to EN 473

Test capabilities on valves:

  • Hydraulic-pneumatic test according to API598, API 6D, API 6A
  • High-pressure gas test in special build bunkers
  • Fugitive Emissions test according to ISO 15848-1 and ISO 15848-2
  • Fugitive Emissions test according to API 624
  • Bellows Seal performance test API602-ISO15761

Non Destructive Examinations include:

  • Dimensional control
  • Dye penetrant (PT)
  • Magnetic particle (MT) examination (dry, wet or fluorescent methods done by yoke or prods)
  • PMI using SpectroTest CCD
  • Ferrite check using Ferritoscope instrument
  • Electronic profilometer instrument to measure roughness
  • Paint test (WFT, DFT, holiday, adhesion, MEK, …)

Destructive tests conducted in external qualified laboratories:

  • Mechanical tests, hardness test and Impact Test down to -196 °C
  • Chemical analysis
  • Corrosion tests
  • Macro and Micro examinations
  • Ferrite check according to E562
  • Paint test (pull-off, …)

Our target is met through the selection of high quality suppliers in the domestic market and controls carried out by our through qualified NDE operators, skilled Quality Control inspectors and Quality Control professional.
We invested in a wide selection of the last generation inspection and test equipments to allow us to guarantee the highest quality control levels both in the manufacturing processes and in the final product.




API 600

ISO 9001:2015

PED 97/23/EC

ATEX 94/9/EC






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