KOSEN ensures that the valves manufactured complying with the most sophisticated technical and contractual requirements by coordinating and optimizing control, in-process inspections and examinations through the final pressure test. KOSEN achieves its quality requirements, in part, by performing its activities in accordance with their Quality Assurance System.
KOSEN assures all valves with the highest grade complying with the most severe technical and contractual requirements.
KOSEN Quality Assurance System is created to guarantee the consistent quality expected
or exceed an international level. A wide selection of the latest generation inspection and test equipment permits
KOSEN Valves guaranteeing the highest Quality Control levels, control processes capability and the final product's quality. An integrated combination and optimization of controls at KOSEN factories and in process inspections, examinations and final pressure tests (conventional and special tests), assure valves of the highest grade complying with the most severe technical and contractual requirements.
» Mechanical tests, hardness test and impact test up to -196°C .
» Micro-examinations by electronic microscope up to 500 times magnification .
» Macro-examinations .
» Ferrite check according to E562 .
» Chemical analysis from CS Super Alloys, using spectrometer.
» Check analysis, C&S using induction analyser .
» Corrosion tests (eg IGC) .
» Step cooling test for alloy steel material [F22].
» Dye penetrant (DP) examination on surface
» Radiographic Examination (RT): Gamma Ray or X-Ray
» PMI (Positive Material Identification)
» Paint dry film thickness check
» Magnetic particle (MT) examination (dry, wet or fluorescent)
» Ultrasonic Test (UT) examination