Founding of the company in 1919 by Mr. Albert Scholz. Invention of the QUICK CLOSING DOOR for pressure vessels issue of a patent Delivery of appr. 500.000 quick closing doors. Design, construction and fabrication of Quick Closing Doors for pressure vessels for all ranges of technical application in accordance with all common pressure vessel codes and / or customers' specifications, e.g. Pressure Equipment Directive 97/23/EC ( PED ), ASME-Code etc.

The quick closing doors are equipped with all safety devices required, in accordance with the applicable pressure vessel and/or safety regulations and additional customers' specifications, if any.