Transfer Under Pressure (TUP) Diving System

We are offering for sale a Transfer Under Pressure (TUP) Diving System.
The TUP Diving System is a Closed Bell Diving System, designed and manufactured by SMP Ltd.

It is certified in accordance with International Maritime Contractors Association (IMCA) guidelines and codes of practice for offshore diving operations and certified by Lloyds Register of Shipping.


This compact modular system consists of a 3 man 4.7m3 saturation diving bell, diver’s gas control panels (air/mixed gas), main Bell/Diver control panel, twin lock decompression chamber, single lock decompression chamber (optional), HP and LP compressors, gantry launch and recovery system.

The system is equipped for air diving and mixed gas diving and the clump weight also incorporates a tool basket for the divers. A hyperbaric floataway chamber is optional.

The Diving System is a mobile and modular system that can be mobilised on a DPII support vessel, platform, rig or construction barge. The system is designed for moonpool or over the side operations. Using Trimix or Nitrox gas mixtures will allow longer duration in-water bottom time at greater depths than using air diving techniques which cause longer in-water and decompression practices.

By providing a closed bell system the divers are transferred in a protected environment. Safety is increased by removing the threat of Nitrogen intoxication. This is achieved by making sure at no point is the diver exposed to atmospheric pressure during decompression.

The benefits are clear to see and it is the way forward in today’s demanding market for deep air diving operations and continual surface mixed gas operations.

Safe No surface decompression interval, protected transfer to and from the splashzone
Proven An enhanced proven solution that increases workable bottom time
Future Proof Upgradeable to Saturation Diving Capability (Future Proof Capability)
Cost Effective The system provides cost effectiveness through increased bottom times for the divers
Mobile This modular system can be easily transported and mobilised in 24 hours providing fast turnaround for offshore operations on any suitable vessel

There is also the capability for one dive team to be in decompression whilst a second dive team commence diving operations which means less down time on jobs.

Download our Full Product Brochure for all specifications and features

Contact us sales@smp-ltd.co.uk with any questions or if you are interested in a quotation.

Ask our Team
SMP design, manufacture and supply a wide range of commercial diving equipment, please email sales@smp-ltd.co.uk or telephone +44 (0)1772 687775 for a quotation on all your commercial diving needs from branded products to bespoke manufactured items all at competitive prices.

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