EUR. Ing. Peter Lumley B.Sc., C.Eng., I.Mech.E., A.S.A.B.E.

Consulting Engineer & Expert Witness to the Process and Industrial Engineering Industries

Expert Engineer in Process and Industrial Engineering in The Fields of Oil & Gas, Petrochemicals, Pharmaceuticals & Manufacturing.

Peter Lumley is a British independent consultant engineer working as an expert witness within the process, industrial & mechanical engineering industry.


Mr Lumley is a registered expert witness, trained as a single joint expert and received training with Bond Solon. He has a wide experience of litigation service including preparing and presenting over 75 cases of evidence in the High Court and in the International Court of Arbitration. He has concluded a wide range of assignments during his 45 years in the process and mechanical engineering industry.

Mr Lumley speaks English & French, and his consulting engineer specialisations are in process and mechanical engineering design, project management and as an expert witness.

  • Degree qualified, apprentice trained, chartered engineer in process and mechanical engineering;

  • 45 years experience in the process and industrial engineering industries;

  • Extensive process and equipment design, valuation and project management expertise;

  • Commercially astute, innovative thinker and problem solver who can make a high-quality contribution.

  • Received expert witness instructions on over 75 cases (and given oral evidence in 29 of these including “hot tubbing”) in the last 22 years in the UK High Court and the International Court of Arbitration including many from the major City of London, Manchester and Birmingham law firms on significant cases such as both the Buncefield explosion civil litigation and HSE prosecution hearings.

  • Bond Solon training both as a joint single expert and in giving evidence in court.

Onshore and offshore oil/gas processing, petroleum refining, petroleum products, LPG, LNG and NGL including all associated utilities and power generation;

Petrochemicals Including plastics polypropylene, LDPE, PTA and PET, fertilisers and bio fuels,

Pharmaceuticals including production of penicillin, vitamin C, citric acid, lactic acid, intravenous products and cannabinoid prescription medicines.

The manufacturing processes, including ferrous and non ferrous casting, machining, welding, forming, coatings/finishing, assembly and packaging lines including food and drink, cement, salt, ceramics, building materials, glass and vegetable oils.

Age, Qualifications and Professional Memberships 66 years old, British;

B.Sc. Mechanical Engineering (2.1 Hons), University of Birmingham 1975;

C.Eng. Chartered Engineer;

M.I.Mech.E. Mechanical Engineering (2.1 Hons), University of Birmingham 1975;

Eur. Ing. European Engineer

ASABE American Society of Agricultural and Biological Engineers.



Specialising as a consultant engineer in the oil and gas, petroleum refining and power industries with specific experience of cryogenic process plant and piping design and insulation including LNG, LPG, NGL, ammonia production and hydrocarbons gas/liquid separation and fractionation.


Mr. Lumley offers project management for the process engineering industry with extensive experience both as an owner’s representative and as a contractor, in preparing and executing basic design, detailed design, procurement and construction to ISO 9001 Quality Assurance and international model forms of contract (FIDIC orange book and similar) of oil and gas production/processing facilities and pipelines, petrochemical and power generation plants.


Specialising in the manufacturing industries with specific experience of welding, forming and machining alloy and stainless steels. Mr. Lumley can assist with Quality Control and Assurance requirements to ISO 9001/2 and assessment of product design and manufacture in respect to assessment of fitness for purpose as well as undertakeing production machinery valuations.
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