About HALL Engineering

Specialising in the field of oil & gas custody transfer flow measurement systems for offshore platforms, refineries, processing plants and pipeline facilities - we provide equipment & services for clients with existing installations, and those manufacturing new metering packages.



Skeltonhall Limited was founded in 1975 by Tony Hall.  In 1990 Tony's son, Justin Hall, joined the company.  Over the past decades we have designed, built, tested & delivered hundreds of oil & gas metering systems.

We have focussed on meter prover systems, and in particular the uni-directional variant; at the heart of which is the "Transphere Interchange" - the fabricated 'valve' that transitions the sphere directly from the outlet back to the inlet of the prover (launch position), and provides double block and bleed integrity.

All operations have now been transferred to Skeltonhall's sister company;

HALL Engineering.

Over the years we have worked on projects with / for:
Abu Dhabi National Oil Co., Agip, AGOCO, Alderley, Aker, Amec, Amoco, Bechtel, BP, British Pipeline Agency, British Gas, CB&I, Chiyoda, Costain, Craig International, CPECC, Dyna Technoligies, Emerson Asia Pacific, Engineers India Limited, Expro North Sea, ExxonMobil, Foster Wheeler, GAIL India, Gulf Oil, Halliburton, Intertek, Kellogg Brown & Root, Kenya Pipeline Co., KROHNE Oil & Gas, Kuwait National Petroleum, Kvaerner,  NAOC, Nigerian National Petroleum Corporation, ODS Metering Systems, Petronas, Petrozim, Saudi Aramco, Shell, Texaco, Total (LOR), Waha Oil, Zueitina Oil Co...

(R) SKH HALL Brand.jpg

Project services

HALL Engineering can provide an array of support services to your engineering, project and sales teams, including:

  • Consultancy regarding metering and meter-prover systems

  • Project management / support

  • Project engineering  

  • Sales / proposals engineering support

  • Detailed design / design review

  • Technical documentation

  • Procurement services

  • Co-ordination of sub-contractors

  • Technical assistance during assembly & testing

  • Inspection services including witnessing of prover and meter calibrations..



In 1982 Tony Hall developed and launched the 'Skeltonhall' Micro-set® MSD1 meter prover sphere detector.  Over the past 4 decades it has demonstrated itself to be the most dependable of instruments.


In 2019 Justin Hall introduced the Micro-set® MSD2

The MSD2 upgrade includes the following key features:

  • 20x improved repeatability (vertical displacement resolution), now +/-0.01mm                

  • Addition of IECEx hazardous area certification.

  • Addition of UKEX hazardous area certification.

  • ​Upgraded ATEX certification - now fully compliant with the current ATEX revision.​​​

  • Increased upper ambient temperature limit (Tamb.), now +75 deg C.

All the above is acheived whilst maintaining the same core engineering team, working to the same designs and production procedures, utilising the same manufacturing & test equipment, all done in the UK right through from 1982 to the present day...  


With HALL Engineering - you're dealing direct with the manufacturer.

For full product details, technical information and downloads, please visit the Micro-set® MSD2 product website:



Other Equipment:

- Metering & meter prover system spare parts.

- Oil & gas flow measurement components and instrumentation.



HALL Engineering Services Limited

Tel:  +44 (0)791 746 7476


www.hall-engineering.co.uk  /  www.micro-set.co.uk


 HALL Engineering Services Ltd

 HALL House, Hayfield Close,

 Dronfield, Sheffield,

 S18 8RP, UK.


 HALL Engineering Services Ltd

 Lubeline Building, Unit 4,

 Collins Yard, Mill Lane, Dronfield,

 Sheffield, S18 2XL, UK.