National Oilwell Varco


Following consultations with our design team, Surespan designed and manufactured a large double roof hatch for the National Oilwell Varco Dunfermline factory in Scotland.

National Oilwell Varco (NOV) deliver technology-driven solutions to empower the global energy industry. For more than 150 years, NOV have pioneered innovations that enable its customers to safely produce abundant energy while minimizing environmental impact. The energy industry depends on NOV’s deep expertise and technology to continually improve oilfield operations and assist in efforts to advance the energy transition towards a more sustainable future.

The project

The NOV Dunfermline factory experienced difficulties building tall manifold assemblies due to the restricted height of the building. Following a consultation with our experienced design team, they were able to design a solution to solve the issue.

The outcome: NOV were able to continue their operation in the existing factory without having to hire temporary premises.

Products supplied

We supplied;

Surespan designed and manufactured bespoke double leaf hatches, measuring 14′-0″ x 14′-0″. These hatches enable an external crane to lift the manifold units through the roof.

With the use of a key, these hatches are controlled by a small PLC that electrically operates the Hatches in an automated sequence.


The bespoke double leaf hatches were specially designed to stay open utilising strut locking to withstand the wind condition they specified with the design team.

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Standard Roof Hatch

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