This website uses cookies primarily for visitor analytics. Certain pages will ask you to fill in contact details to receive additional information. On these pages you have the option of having the site log your details for future visits. Indicating you want the site to remember your details will place a cookie on your device. To view our full cookie policy, please click here. You can also view it at any time by going to our Contact Us page.

Pipeline project launches gearbox

15 July 2009

When Dong Energy developed the Nini East Field off the coast of Denmark it constructed an unmanned production platform and a seven kilometre subsea pipeline to the existing Nini platform. Rotork Gears was drafted in to provide a new valve gearbox and, in doing so, launched a new solution.

The completed double block and bleed ball valve and DS gearbox package for the Nini East Field Project
The completed double block and bleed ball valve and DS gearbox package for the Nini East Field Project


As part of the contract for the project, a UK valvemaker is supplying a Class 1500, six inch metal seated double block and bleed ball valve for a critical duty demanding zero seat leakage on liquid and gas duty.

Due to the specific constraints of the valve installation, the valvemaker’s engineers were advised that access for ROV operation could only be possible from above the valve and no access from the sides could be permitted. In addition, there were restrictions to the allowable overall dimensions of the valve and gearbox package due to the surrounding fabrication.

Working closely with the valvemaker, Rotork Gears proposed a new gearbox design that met the size restrictions without compromising the technical performance. The new gearbox design became known as the DS range.

When installed, the high pressure valve package will be operating at a depth of 58 metres. The Nini East Field development is expected to extend the life of the Nini Field for at least another ten years.


Contact Details and Archive...

Related Articles...

Most Viewed Articles...

Print this page | E-mail this page