IIS SERVICE operates with 60 inspectors certified as IWI (International Welding Inspector) and CISI (Certified In-Service Inspector), carrying out following checks: Contact surface in slip resistant connections (preparation and treatment, rugosity, burrs) Bolting assemblies (certificates, dimensions, resistance…

Coating and surface protection IIS SERVICE operates with 20 coating inspectors certified according to NACE or FROSIO programs, carrying out following checks: Steel preparation Surface degreasing Abrasive blasting media (type, size, contamination, etc. Air compressor…

L'utilizzo dei droni ha ampliato le possibilità ispettive in molti campi. Oltre alle ispezioni visive aeree, la possibilità di equipaggiare il drone con apparecchiature per rilievi specifici offre diverse modalità di ispezione, controllo e monitoraggio, come le rilevazioni fotogrammetriche, l'effettuazione di modelli…

Pre-service inspection is carried out before commissioning of new equipment and components. This type of inspection is adopted in oil & gas, power energy, chemical and petrochemical sectors, where equipment are subjected to periodical inspections during their operating life. Pre-service inspection has not a…

The IIS Group boasts nearly 60 qualified inspectors, most of them employed in IIS SERVICE and in IIS CERT, which are able to perform different type of inspections and supervision: during fabrication and erection, in workshop and worksite, performing NDT, QA/QC services, expediting and, finally, second and third party…

The IIS Group carries out in-service inspection assuming different roles. IIS SERVICE provides Plant Inspectors for the performing, supervision and coordination of inspection activities during mantainance turn-around of refinery, petrochemical and power generation plants. Inspections on critical equipment are carried…

IIS Group boasts a longstanding experience in Welding Inspection activities.
IIS SERVICE welding inspectors are certified  IWI - CSWIP - API - ASME welding inspectors who perform survey, supervision activities during fabrication and eraction of new components and structures and during mantainance and…

The IIS Group employs around 60 qualified inspectors. Most of them are employed in our companies IIS SERVICE and IIS CERT and are able to perform second and third party inspections. Survey, supervision, inspection and testing during workshop prefabrication Survey, supervision, inspection and testing during…

Caratteristiche di questa tecnologia sono: >> Creazione nuvola di punti 3D Serbatoi di stoccaggio Apparecchiature in pressione Ponti Gallerie Impiantistica…

3D LASER scanner manuale è una tecnica di controllo che consente di rilevare tramite HandySCAN portatile le aree di corrosione e i danneggiamenti meccanici presenti sulle superfici di serbatoi di stoccaggio e apparecchiature in pressione.  Le superfici da controllare sono scansionate in tempo reale e con precisione…

L'Eddy Current Testing (ECT) è una tecnica di controllo non distruttivo che si basa sull'elettromagnetismo.
Il campo magnetico generato da una bobina alimentata con corrente alternata produce, in un pezzo da esaminare, correnti indotte che influenzano il valore di impedenza della bobina che le ha generate. In…

IIS SERVICE performs in-site non destructive metallographic examination through replicas. This type of non destructive investigation is generally required to examine microstructures of materials (plates, pipes, forgings, castings) or on welded joints to examine base metal, weld metal and heat affected zone…

IIS SERVICE is able to provide a complete series of inspections for heat exchangers or air-coolers tubes, to verify the integrity of tubes.  Eddy currents IRIS technique Remote field MFL - Magnetic Flux Leakage…

IIS SERVICE is able to provide a wide range of services dedicated to aboveground storage tanks inspection and testing, to assess their structural integrity.  Acoustic Emission Floor Scanner for the bottom Dimensional check - verticality UT testing for shell by magnetic crawler Inspection activities can…

IIS SERVICE has developed in-house NDT ultrasonic procedures to detect and evaluate typical damage and defects due to damage mechanisms which affect components operating in refinery and petrochemical plants. NDT ultrasonic procedures have been developed for the following damage: HTHA - High Temperature Hydrogen…

IIS SERVICE carries out, through its own personnel and equipment, automated non destructive testing: • P-SCAN  for materials and welds ultrasonic remote testing
• PAUT (Phased Array Ultrasonic Testing)
• TOFD (Time of Flight Diffraction)

These techniques are adopted in pipes and…

IIS SERVICE effettua ispezioni di tubazioni con il Sistema ad Onde Guidate sin dal 2001. La tecnologia ad onde guidate consente l’ispezione rapida e completa di lunghi tratti di tubazione grazie all’applicazione di onde ultrasonore flessurali di tipo guidato. Essa consiste essenzialmente in uno strumento multi -…

IIS SERVICE operates in field carrying our surface and volumetric non destructive testing, through its 40 certified inspectors at Lev.2 and Lev. 3 according to EN ISO 9712 and ASNT TC1-A in the following NDT methods: Visual testing VT Magnetic particle inspection MT Penetrant testing PT Ultrasonic testing UT…

IIS SERVICE provides technical and scientific advice for design, fabrication, inspection issues.
Technical and scientific support are provided for: Optimization of design details Preliminary reliability assessments Material selection Metallurgy and weldability Welding sequences Welding technology Heat…

The IIS Group is commited in drafting or revision of specifications or operative procedures, for procurement, design or fabrication and production processes control. Material / component procurement specifications establishing supplementary or particular requirements for quality or safety that allow to reach…

IIS SERVICE engineers and technicians are committed in the technological design verifications, with particular reference to the rail & road infrastructure sector and to steel structures at large. The contribution to the optimization of manufacturing solutions has always been highly appreciated by our Clients,…

The welded joint

base material requirements, pre-welding NDT, welding process, weld detail definition, edge preparation, tack weld procedure, backing gas, re-drying of filler metal, preheating, number of passes, welding parameters, speed range, dilution, preheat and interpass temperature, preheat…

Another service provided by our Engineering Department regards the comparative evaluation of design, fabrication procedures, welding procedure qualification plan, comparing the main reference codes (i.e. AWS vs EN). These analysis allow to define the basic and supplementary requirements aimed at verifying the…