Reactor vessels, Pressure Storage Vessels, Jacketed Vessels, Limpet Coil Vessels and Catalytic Reactors are built by the Company from small laboratory or pilot plant items to full scale production reactors up to 12000 litres capacity. In materials ranging from low temperature carbon steel to the more exotic nickel alloys.

Graham Hart (Process Technology) Limited are ASME 'U' Stamp Holders

Other Pressure Vessel Codes operated by the Company include:

ASME VIII Div 1
PD5500
BS EN 13445
Stoomwesen