Witherup designs and fabricates ASME pressure vessels and shop tanks in its Kennerdell, PA facility, where it is equipped to build vessels to 14′ diameter and 1.25″ wall, up to 25 tons. Witherup is qualified to ASME Section VIII, Division I and holds the stamps U, R, S, and NB. Witherup also designs and fabricates shop tanks to API 650, and fabricates silos, duct, and other related plate work.
Witherup supplies over-sized tanks and vessels in one piece, or as knockdown assemblies for field erection by Witherup or others. Witherup can provide shop fabrication only, setting services, or the full fab-erect service.