ASME Section Vlll, Division 1 

• Authorized to stamp the asme "U" Symbol Certificate Number 21,842 
• Authorized to stamp with the NBIC "R" symbol Certificate Number R-3310 

Pressure Equipment Directive (PED) 

G.J. Oliver designs and manufactures both Code and Non-Code Pressure Vessels. GJO can manufacture to Client supplied drawings or can design and manufacture pressure vessels to meet specific project requirements.

GJO is qualified to provide ASME Section VIII Div 1,and  PED CE Stamp vessels as well as ASME “R” Stamped Vessel repairs or alterations. 

It is our objective to supply pressure vessels that fully meet project specifications, code requirements and customer expectations. G.J. Oliver’s qualified staff is involved in every phase of manufacturing from the procurement of certified materials through fabrication and testing right down to the final preparation for shipment including providing a complete high quality documentation package.


We manufacture vessels from carbon and stainless steels, and provide all required NDT, heat treat, hydro testing along with final blast and painting at our facility.