Bespoke instrumentation solution.

Dunlop Oil & Marine Logo

Dunlop Oil and Marine, part of the ContiTech Division of Continental AG, is a world leader in the design, manufacture and supply of hoses for the oil, gas and petrochemical industries, for both offshore and onshorebased operations.

As part of their in-house testing, analysis of polymeric samples is carried out using a pyrolysis probe which is inserted into a horizontally aligned injector of a gas chromatograph (GC). When the GC came to the end of its useful life, it was to be replaced with a newer instrument. The majority of readily available, current production model gas chromatographs have vertically accessible injector ports, which meant that sample retention in the pyrolysis probe became an issue.

Speck & Burke were approached to provide an engineered solution. Finding that there was no appetite amongst the original equipment manufacturers that were asked to supply an instrument to the required specification, a custom modification to a reconditioned GC was judged as the most efficient and cost-effective way to proceed.

Key challenges

  • Design, supply and install a custom engineered product.
  • Location of suitable non-standard position for inlet on GC chassis.
  • Alteration of existing hardware services.
  • Fast turnaround required.

Our approach

  • Verify compatibility of components.
  • Design specification to avoid ‘cold-spots’ in new injector position.
  • Verification of interfacing and operation.


  • Modern GC interfaced with legacy pyro-probe.
  • Modified inlet configured for horizontal access.