Subsea ROV

Robust components are an absolute must for mission critical machinery

and equipment in the multibillion pound oil and gas industry. This case study

focuses on the Remotely Operated Vehicles (ROVs) used in the subsea sector


The Challenge

In environments where connectors and cables are exposed to high pressures 

and submerged in water for extended periods, secure and waterproof electrical connections

are vital for ensuring that installations can be easily assembled, modified and maintained. 

As pioneers in environmentally sealed connectors, Bulgin was approached

by the world's largest manufacturer of ROV's to develop a connector which

combined quick and convenient connectivity with long-term corrosion-resistance.

Our Solution


Drawing on Bulgin’s extensive expertise in environmental sealing,

the ROV Tether Connector is a custom solution that provides a quick yet secure coupling and locking mechanism.


This ensures that the connector can withstand demanding subsea conditions

– such as high pressures and extreme temperatures –

whilst providing the same uninterrupted power and data connectivity as the company’s standard

product ranges, as well as fibre optic signal feeds.

In addition to its 5kV, 32A rating, this Deep Sea Tether Connector 

also features dynamic pressure balancing via free flow of dielectric oil from the surface

to the connector, enabling ROVs to operate at subsea depths of up to 7000m.


Engineered to prevent problems happening in the first instance,

the ROV Tether Connector helps reduce cable termination time 

and potential downtime for subsea projects. 




The Results  

Our client is the largest manufacturer of subsea ROVs, and is leading the way with this technology.

The company’s latest product, which features the ROV Tether Connector,

was unveiled at the 2015 Offshore Technology Conference (OTC) in Texas, USA.