OptiSeal Manhole Lids
The sealing of tanker manlids has been and remains a real challenge for tank builders around the world. Rolled single piece manlids have limitations in terms of sealing when fitted to tank shells which may be distorted due to the heat generated in the manufacturing process. When the manlid is bolted down this distortion is transferred to the sealing face, often resulting in vapour leaks. In the very competitive world of tanker building, the business of putting a tanker through vapour tightness testing with lids that will not seal is time consuming and expensive.
MechTronic have responded to this challenge with the OptiSeal manhole cover. This unique two-piece British design isolates the distortion to the base plate on which the cast aluminium lid (with sealing face) is fitted, an O-ring seals the cast lid to the base plate eradicating the transfer of any distortion to the sealing face. Tank builders can fit the manlid knowing that they will stand a far better chance of passing vapour tests first time.
For more information or to order please call 0113 279 9611 or email us.