Twin-lock decompression chambers
Diving chamber for commercial, naval and rescue use
The largest of the three diving families and the one with the longest list of named deliveries. A main lock and an ante-lock, each with its own gauge set and its own valve groups, worked from one console on the outside of the hull.
Chamber specification
| Chamber class | Twin-lock decompression chamber |
|---|---|
| Gas systems | Mixed gas systems, with back-pressure regulators |
| Flange standard | NATO Flange, on the entry lock |
| Carbon dioxide removal | CO₂ scrubbers and environmental control |
| Viewports | Acrylic, to ASME PVHO |
| Emergency sensors | Automatic stop sensors |
| Pressure equipment directive | PED 2014/68/EU |
|---|---|
| Pressure vessel design code | ASME Section VIII |
| Human-occupancy pressure vessel | ASME PVHO |
| International Marine Contractors Association | IMCA Supplier (S) Member |
|---|
Gallery
Main lock and ante-lock, each gauged and valved separately, worked from one console outside
The chamber is built as two pressure locks. The console carries a depth gauge for the main lock and a depth gauge for the ante-lock, with a compression group, a decompression group and an emergency decompression valve for each, so the two are controlled independently from the same position.
Fitted as standard
5 standard · 1 on option
- Built-in Breathing System (BIBS) at every station
- Medical lock, for transfer under pressure
- Two-way communication and CCTV monitoring, with backlog
- Fire suppression system
- Automatic stop sensors for emergency situations
On the option list
- Containerized format
Delivered to contractors, navies and port authorities since 2008
19 installations · 13 countries · 2008–2024
Commercial diving contractors, navies, port authorities and one energy major, newest first.
| Client | City | Country | Units | Year |
|---|---|---|---|---|
| Vietnam Special Forces | Hanoi | Vietnam | 1 | 2024 |
| Retro Holding | Baku | Azerbaijan | 1 | 2024 |
| Pakistan NAVY | Karachi | Pakistan | 2 | 2023 |
| Azerbaijan NAVY | Baku | Azerbaijan | 1 | 2022 |
| Navtek | Antalya | Türkiye | 1 | 2020 |
| Shipyard Diving | Vigo | Spain / Mexico | 3 | 2016 |
| SIMMS Marine | Tallinn | Estonia | 1 | 2016 |
| Statoil | Oslo | Norway | 1 | 2012 |
| General Director of Ports | Latakia | Syria | 1 | 2012 |
| Huta Marine | Jeddah | Saudi Arabia | 2 | 2009 |
Hipertech is an official IMCA Supplier (S) Member, which supports the diving chamber product line.
See the full reference list
Specify a decompression chamber
Working depth, gas mix and how many people have to be inside at once settle most of the specification.
Write to engineering