The opening speed of any pressure test chamber or
vessel with short service times is a major consideration
when choosing the method of closure. A considerable part of the test cycles can be absorbed with the opening and closing of the vessel . Combinations of high pressure and large diameter vessels can make bolted closures 
unsuitable as the bolt size requirement becomes too great for the flange. Closures that utilise bolts have very
large heavy nuts that are very time consuming and awkward to remove and install. Based on the experience of Vector's successful Powerlok range, Vector's large closures utilises the experience of current clamp based technology combined with simple and cost effective rubber seals. Vector is capable of supplying high pressure quick opening closures for large diameters up to 100”ID. Vector can also supply the test vessel if the customer requires full supply.

From Concept through to InstallationEach vessel installation is a custom design to the customer's requirements for pressure rating, orientation and operational requirements. Vector will work with the customer and end user and supply concepts so that the correct design is achieved. Vector can also provide full project supply including the pressure vessel, and hydraulic systems to power the hydraulic closure motors.

Vector can also supply fabricated structures such as dome hub parking stands to allow internal dome and seal surface inspection to be carried out safety.



   

Pressure Energised SealingSimple cost effective rubber seals for easy consumable
supply and quick turnaround of closure opening and
closing cycle. Vector's extensive FEA development into pressure energised seal carriers allows cost effective seals
to be used for high pressure applications. The seals are
manufactured from standard nitrile rubber and the seal
carriers are removable for easy maintenance.

RIT Testing PortsOften it can take many hours to fill a pressure vessel
with the test media. Vector recommend that all closures
are supplied with RIT testing ports. RIT testing allows the
end user to check the validity of the seals before the vessel
is filled. RIT testing is a simple operation where test fluid or
gas is applied between the rubber seals at a set test
pressure. The pressure is held over several minutes to
ensure there is no pressure drop. If a pressure drop occurs
a leak path is present and the seals should be re-inspected
or replaced.



Powerlok Large Structural ClampsVector has designed Powerlok to provide strong and robust
structural clamps to subsea and topside structures that
require a remote operated high load structural connection.
Clamp actuation can be controlled using lead screws and
hydraulic motors or hydraulic cylinders.