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| The welder at work. | A closer look at one of the many welds. |
The tube in the trench. |
| (Click on a picture in order to obtain a larger one.) | ||
The vacuum tubes for GEO 600 have been manufactured and welded by the Hans Skodock GmbH in Hannover. The basic unit consists of 0.75 m long corrugated pieces of stainless steel with 60 cm diameter, 0.9 mm thickness, and a mass of about 20 kg. Six pieces each are welded at the supplier. After cleaning, these 3 m tubes have been joint together at the site by means of an orbital welding machine. The tubes are suspended at thin steel cables within a trench. The suspension consists of rotating disks mounted on a rail. So the tube can be rotated during welding and pushed into the trench afterwards.
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| The welder at work. | A closer look at one of the many welds. |
The tube in the trench. |
| (Click on a picture in order to obtain a larger one.) | ||
| (-9) (-3) (MS) |x| (T) (SC) (P) |
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Penning Pirani Mass-Spectrometer Gate Valve Turbo-Molecular-Pump Scroll-Pump Pump |
Here you can obtain the sketch in parts: |
The drawing has been made by Kasem Mossavi (Version 070406).
![[North Building]](/geo600/project/pictures/vacuum/vacuum1.jpg){kind=link}
![[Central Cluster]](/geo600/project/pictures/vacuum/vacuum2.jpg){kind=link}
![[East Building]](/geo600/project/pictures/vacuum/vacuum3.jpg){kind=link}