Picture right:Completed compressor hall with new intermediate floor and new compressor system

Annotation:Photos with change of perspective; The point from which the photo below was taken is shown in the picture on the left as a red dot.

Picture right: Compressor hall after removal of all equipment

Picture left:Compressor hall before the replacement.

The compressors to be replaced can be seen on the left side (in blue).

Picture Survey. Compressor modernisation at Paul Scherrer Institute PSI, Villigen.

© Paul Scherrer Institute

© Paul Scherrer Institute

Picture above left, before replacement:Piston compressors from Sulzer Burkhard

Due to the high vibrations, these compressors had to be stored on massive concrete blocks and thus needed two floors.

Picture right, after the replacement:The ORS oil separator system and the GMP gas control system were installed on the lower floor, directly below the respective compressors.This allowed the components to be easily connected.

Picture survey. Compressor modernisation at Paul Scherrer Institute PSI, Villigen.

Picture top right, after the replacementScrew compressors from Kaeser

The modern screw compressors allow a space-saving installation and thus make even better use of the existing hall.

© Paul Scherrer Institute

Picture left:Control system before conversion (gray control cabinets)

Thanks to modern components, the control system has been reduced by more than half.

Picture right:Control system after conversion (yellow control cabinets)

Picture survey. Compressor modernisation at Paul Scherrer Institute PSI, Villigen.