Closure Systems
All parts used for pressure vessels are delivered with the adequate certificates; 3.1A - TÜV or
ASME SA193 with a 3.1B certificate all internationally known and accepted by testing authorities
Clamp bolts have a short bending moment you can use considerably lighter and smaller flanges.
Materials used are
21CrMoV57 (1.7709) DIN EN 10 269
42CrMo4 (1.7225) DIN EN 10 269
X6CrNiTi1810 (1.4541) DIN EN 10 272
X2CrNiMoN53 (1.4462) DIN EN 10 272
X3CrNiMo134 (1.4313) 780 DIN EN 10 272
SA 193-B7 / B 16
SA 193-B8
Due to our experience we find the most suitable material for you, will support you during design
phase and produce fasteners and flanges according to your specific requirements.
We also take care of all necessary material tests and documentation and will deliver these in time.