A capacity for fast track (emergent or planned) re-tubes, overhauls and modifications is also factored into the companies annual operating plans from straightforward, no-nonsense re-tubes to full overhauls where old header boxes are re-worked (re-spot facing, tapping etc.), inspected, shot blasted and painted with the option of all new plugs from stock. Gaskets are of course replaced as a matter of routine.

Due consideration is always given to the relevant vessel standards and codes, whether an overhaul / modification or complete design and build. Therco ensures up to the minute compliance by subscription to standards such API 661, ASMEII, VIII and XI along with extensive knowledge of the workings of PED 97/23/EC.