How long the lifespan of your Choke Manifold achieves will depend on regular inspection and replacement of degraded parts.

OES can provide a cost effective and time saving solution to inspect and replace parts on your existing manifold compared to standard OEM providers.

At the point of the 5 yearly API COC Expiry, we can provide the following service:


  • Recertify the previous OEM’s dumb iron API 6A components onboard (spools, blocks, flanges etc). Any items found not suitable for recertification based on condition will be repaired or replaced with new
  • Supply newly manufactured valves to replace existing OEM valves 
  • Assemble and test the complete manifold onboard the rig and issues a complete COC package to become the Current Equipment Manufacturer of the complete manifold

    This is completed in 3 stages:

    Stage 1: manifold component survey (inspection)

    Stage 2: dumb iron recertification in line with API standard processes / procedures

    Stage 3: assemble w/ new JVS valves and pressure test complete manifold installed onboard – issuance of COC package

       Recertification, repairs & assembly assistance services are available for the following:

      Choke & Kill Manifolds

      Standpipe Manifolds

      Cement Manifolds

      Mud Gas Separator

      BOP Stacks

      BOP Risers

      Riser Joints

      For further information on our recertification program, please email


        Palace Towers 1, Office 202
        Dubai Silicon Oasis. Dubai, UAE
        PO Box 75971
        +971 4 326 28 22
        At OES we believe in delivering services that maintain our clients assets, improves efficiency and protects both people and equipment. OES are committed to the environment and improving the health and safety of the industry. OES hold a strong internal safety record which is testimony to this and an achievement that all at OES are proud to be part of. Find out more about our vision.

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