When staff at National Oilwell Varco were unable to build tall manifold assemblies due to the restricted height of their Dunfermline factory, they turned to Surespan for help. Opening up the roof on a temporary basis was the solution.
Scotland, Varco National Oil Well
Following consultations with our design team, Surespan manufactured a 4000 x 4300mm double leaf roof hatch which enabled an external crane to lift the manifold units in through the roof. The electrically operated hatch opens in an automated sequence, controlled by a small PLC and activated by the turn of a key. It was specially designed to open and stay open utilising strut locking to withstand agreed wind conditions.
This solution allowed the company to continue this operation in their existing factory without having to hire temporary premises.
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Designed with options for manual gas spring assistance, featuring aluminium continuous hinges and an automatic hold-open safety stay to lock the lid in the open position to a 85° span.
For larger, heavier lids, consideration is to be given for powered assistance by 24v DC actuators, to ensure ease and safety of use is afforded to the operative.
A double unbroken EPDM seal ensures weather tightness, with an External Liner fitted as standard to allow for a variety of hot or cold applied weathering materials.
Available with a polyester powder coated dual finish upon request.
Set standard sizes are available from stock, with bespoke sizes made to suit project needs.
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