When designing custom pressure vessels, we require the following details: Size (diameter and length or capacity) Vessel orientation (horizontal or vertical) Type of supports (saddles, legs, skirt or support lugs) Design pressure (internal and external) Design temperature (min and max) Corrosion allowance (if applicable) Material of construction Product including design specific gravity Openings: Quantity, size, type and location Type of external paint or internal lining if applicable. Appurtenances: internals, insulation supports, ladders or platforms Location of installation for wind/ seismic design and freight estimate Specifications beyond ASME requirements