A Topside Umbilical Termination Unit (TUTU) is a standalone module which is located adjacent to the umbilical hang-off and 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/SMS developed standardised design philosophies always incorporating safety, environmental and statutory requirements.

Topside Umbilical Termination Unit

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• 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

System Specification

Design

Certification

• 316 stainless steel or carbon steel enclosed or open framed construction• Wide range of tube fitting types, e.g. twin ferrule compression, MP coned & threaded and Parker Hannifin MPI™ or flanged and welded pipework• Wide range of materials and exotics available, e.g. 316/316L, 6Mo, Incoloy 625, Incoloy 825, 904L, Super Duplex, Duplex • Environmental loadings can include; vessel motions, wind and blast loadings• Deck mounting or suspended (underslung) system designs

• Safe area and hazardous environments, (Zone 1/2, Class 1 Division 1/2), to ATEX, IECEx or NEC (NFPA 70)• Standard temperatures design in accordance with EN 13628-6, systems also available with Extended and Arctic ratings• Design and certification to DNV2.7-1 and DNV2.7-3• When required designed to the relevant NORSOK standards

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