- System and Factory Certifications
• ISO 9001:2015 – Quality Management System confirming the professionalism of business and production processes.
• EN ISO 3834-2 – Comprehensive quality requirements for welding of metallic materials (highest welding quality level).
• EN 1090-1, -2, -3 (EXC3 class) – Factory Production Control Certification. Authorizes the design and manufacture of steel structures (often in EXC3 class, enabling the construction of bridges and safety-critical structures).
• WHG – Certification ensuring that installations are environmentally safe. - Pressure Equipment Authorizations (KSM Zeman Specialization)
The company places strong emphasis on international markets (particularly Germany) and the energy sector, as confirmed by:
• AD 2000-Merkblatt HP 0 / HP 100 R – Authorization for manufacturing pressure equipment (vessels and pipelines) in accordance with German standards.
• Directive 2014/68/EU (PED) – Authorization to manufacture pressure equipment in compliance with EU regulations.
• UDT approvals – Polish certifications for the manufacture, modernization, and repair of pressure and non-pressure vessels, as well as transmission and process pipelines. - Personnel Competencies (Supervision and Testing)
The company employs specialists holding the following qualifications:
• IWE / EWE – International and European Welding Engineers responsible for technical supervision of welding technologies.
• IWI – Welding Inspectors verifying workshop processes.
• NDT personnel (VT, PT, MT, UT) – Certified Level 2 inspectors (in accordance with ISO 9712) performing non-destructive testing of welded joints. - Execution Standards (Technical)
The company operates in accordance with the following product standards:
• EN 13445 (pressure vessels),
• EN 13480 (pipelines),
• EN 12952 / EN 12953 (boilers). - Specialized Material Certifications
Transfer of material identification markings on products with material certificates from manufacturers approved in accordance with pressure equipment regulations (Pressure Equipment Directive 2014/68/EU in conjunction with AD 2000-Merkblatt W 0). Details are specified in agreement no. 0036/PL/U-0004/2023. - Qualified Welding Procedures (WPQR)
ASME and PE(S)R/PED standards:
• 60 procedures according to ASME Section IX Ed. 2021, Section I Ed. 2021, and PE(S)R 2016.
• 20 procedures (essential variables) according to ASME Section IX / Section I Ed. 2021 and PED.
• Approvals from notified bodies: LRQA (UK/PE(S)R) and UDT (PL/EU/PED).
European standards (PN-EN ISO 15614):
• Process 141: 54 procedures
• Process 111: 15 procedures
• Process 141/111: 15 procedures
• Process 135: 20 procedures
• Process 131: 3 procedures
Material and process scope:
• Material groups (ISO/TR 15608): 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 43, including dissimilar joints between these groups.
• Welding and joining processes: 111, 131, 135, 141, 142, 783.
• Thickness range: from 1 mm to 100 mm.
• Special processes: Approved cladding (overlay welding) technologies and qualified bending technologies for most material groups according to ISO/TR 15608.
Human Resources:
Production staff: A team of 160 welders and 160 fitters (both in-house personnel and certified subcontractors).
Supervision and management: A team of 30 specialists, including contract management, a dedicated HSE department, and engineering welding supervision.
