Topside Umbilical Termination Units(TUTUs)

Topside Umbilical Termination Units(TUTUs)

Avoid unexpected depressurisation by bleeding systems off in a careful and controlled manner.

Alderley's Topside Umbilical Termination Unit (TUTU) enables the controlled bleeding of systems to help avoid unexpected depressurisation.

A Topside Umbilical Termination Unit (TUTU) is a standalone module which is located adjacent to the umbilical hang-off.

It interfaces the Hydraulic Power Unit (HPU), Master Control System (MCS) and Electrical Power Unit (EPU) to the Subsea Distribution Unit (SDU) via hydraulic / electrical power & signal and fibre optic communications.

All systems are designed and tailored to suit the individual project specifications or client developed, standardised design philosophies, always incorporating safety, environmental and statutory requirements.


Key design features include :-

  • High working pressures up to 1379barg / 20000psig
  • Single, double or custom isolation philosophies.
  • Systems for liquids or gasses.
  • Junction boxes for electrical terminations.
  • Pressure gauges externally visible.
Quality Performance Life Cycle Support