Besides the ISO 9001 certificate we have a large number of internationally recognised product certificates and approvals for different markets worldwide.
What is more, by having concluded various Manufacturing Survey Arrangements our indepent Quality Department is authorised to conduct legally recognised final product inspections to assess the operation, strenght and tightness. However useful, inspecting final products is still not enough to be sure. That is the reason we also keep a close watch on our actual production processes.
Calibrated instruments, statistical techniques and a sophisticated 3D measuring bench are used to systematically survey everything that is going on in our production facilities. State of the art machinery ensures product reliability and accuracy under even the severest of conditions.
General product certificates and approvals
1.1.3 BSI Certificate of Conformity acc. PED 97-23-EC Module H Wouter Witzel
1.3.1 ATEX Manufacturers Declaration Wouter Witzel
5.2 FM (US) Product Approval for Fire Protection Wouter Witzel Butterfly Valves
5.2.1 FM 1112 Indicating Butterfly Valves 350-400
5.5 TNO LRS Fire Test Report Wouter Witzel
6.03.5 GGTN Vendor Approval MAA-6-4000
6.04 HOECHST Cycle Test Report Wouter Witzel
6.07 POYNTON Vacuum Test Certificate Wouter Witzel
6.08 RWTUV TA luft (DE) Emission Certificate TA Luft Wouter Witzel Butterfly Valves
6.10 UT THT High-Vacuum Test Report Wouter Witzel
6.11 TNO Shock Test Report Wouter Witzel
6.12 TNO-IWECO Shock Test Report Wouter Witzel
8.02 Declaration of Conformity acc. PED 2014/68/EU- Dynaxe Butterfly Valves
8.09 Declaration of Conformity acc. PED 2014/68/EU – Wouter Witzel Check Valves
8.11 Declaration of Conformity acc. PED 2014/68/EU- EV Wouter Witzel Butterfly Valves
Wouter Witzel Declaration of Conformity acc. PED 2014/68/EU – Econaxe Butterfly Valves
Wouter Witzel Eurovalve bv Certificate Norsok System 1
Wouter Witzel Eurovalve bv Certificaat Norsok System 6