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DAFRAM Quality Assurance System was certified for the first time in 1988 by RINA. Today the whole DAFRAM ball valves design, manufacturing and testing process is covered by a quality assurance program certified and continuously audited by accredited inspection authorities in accordance with:

  • ISO 9001:2008 for design, production and after sales of ball valves
  • ISO 14001:2004 for the environmental management system of the company organization
  • BS OHSAS 18001:2007 for design, production and after-sales service of industrial ball valves
  • API Specification Q1 and Specification 6A
  • API Specification Q1 and Specification 6D
  • API Specification Q1 and Specification 6DSS
  • API Extension
  • Directive 94/9/EC for equipments and protective systems intended for use in potentially Explosive atmospheres (ATEX)
  • Conformity to EN 14141 - valves for transportation of natural gas in pipeline
  • Pressure equipment directive 97/23/EC (PED)
  • SIL Certificate for Floating Ball Valves
  • SIL Certificate for Trunnion Ball Valves
  • SIL Certificate for Top Entry Ball Valves
  • SIL Certificate for Fully Welded Ball Valves
  • SIL Compliance

According to written procedures the whole manufacturing process of ball valves is continuously monitored by the following inspections and tests performed during:

  • Customer evaluation and monitoring
  • Checking of raw incoming materials certification
  • Inspection of manufacture of valve components
  • Pressure tests
  • Functional tests
  • Non destructive tests
  • Final inspection of finished valves

If specified by the purchaser, the following different tests can be berformed to verify valve properties and performances, to verify material chemical composition or mechanical properties, to qualify valves to special working conditions or to long working life:


  • Pressure test at high/low temperatures
  • Low e and High pressure seat gas test in accordanc with Annex C of API 6D
  • On customer request pressure tests can be performed in accordance with other standards like API 598 and EN 12266-1
  • Anti static test
  • Torque test. Torque value is verified during this test as well.
  • Functional valve test or functional valve and actuator test.
  • Fugitive emission test to ISO 15848 or to other standards
  • Paint dry film thickness check
  • Insulating coat testing by holiday detector ISOLTEST HD93
  • Cavity relief test
  • Cryogenic test down to minus 196 °C
  • Strain gauge test
  • Hyperbaric test
  • API PR2 test


Every DAFRAM valve identified by a univocal Serial Number, will be delivered complete with EN 10204 3.1 material certificate of pressure containing parts and 3.1 certificate of pressure tests. In addition, all other certificates concerning special valve tests, destructive or non destructive tests and qualification tests according to purchase order requirements will be included. On customer request a third part inspector can witness every test and issue a certificate in accordance with EN 10201 3.2.


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Design changesBecause of the constant technical review of our products, we reserve the right to modify those products within the specified Standards criteria... Read more...

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