Reference Gas Production

Refit in record time: Optimal planned maintenance of safety ball valves.



Refit in record time

Optimal planned maintenance of safety ball valves enables recommissioning on schedule

The natural gas field Völkersen located in the north-western part of Lower Saxony and operated by DEA is one of the most productive in Germany. When operating, as well as during service and preventative maintenance of the surface facilities and the production wells conducted by DEA Niedersachsen, safety has top priority. All components of the plant have to fulfill the highest technical requirements at any time.
In the course of regular 5 yearly maintenance of the Central Gas Drying Plant about 20 ball valves manufactured by Hartmann Valves were inspected and overhauled in September 2016. Thanks to early planning and close cooperation all valves could be reconditioned in a short period and taken back into operation right on schedule.


Reference Service/Maintenance DEA
Quantity Size Pressure Class Feature
Refit/Repair
9 10″(DN250) PN100 4x fail-safe-close valves with hydr. actuator
6 4 1/16″(DN103) PN520 fail-safe-close valves with hydr. actuator
2 2 1/16″(DN52) PN690
1 1 13/16″(DN46) PN690
1 1″(DN25) PN100
New valves procured in preparation for conversion
2 10″(DN250) PN100 fail-safe-close valves with pneum. actuator
3 1 13/16″ PN690
Customer statement

Cooperation with Hartmann’s service personnel on-site and during the processing of the different maintenance steps was conducted in close coordination – without any problems.

Meiko Lindhorst
Maintenance Master, DEA Deutsche Erdoel AG
Customer statement

Based on very good planning and provisioning of spare parts upfront, combined with high flexibility and reliability, all maintenance and project related measures were realized in due time. Especially in view of unplanned maintenance work Hartmann has proven to be a reliable partner developing solutions immediately while focusing on the project’s success.

Frank Nußpickel
Head of Surface Facilities Engineering Department, DEA Deutsche Erdoel AG

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