The IMCA standard Synergy 20Ft Containerized Decompression Chamber & Quad (DDC) system is Purpose-Built for Professional commercial diving operations, incorporating a two-man-twin-lock chamber with an integrated air management Panel and 12 breathing air cylinders. The System features high-pressure lines with Primary and secondary regulator supply to ensure safe and reliable chamber operations.

Designed to meet stringent safety and operational standards, the 20Ft Containerized Decompression Chamber & Quad (DDC) includes a complete internal and external fit-out, advanced communication capabilities, individual diver air supply control, and precise air management integration.

Engineered for reliability and compliance with IMCA D018 and D023 standards, the system ensures operational efficiency and diver safety during surface-supplied diving missions.

Ideal for offshore and onshore operations, It Provides dependable decompression and control solutions for demanding diving environments.

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Key Features

• Container Type: 20ft DNV or ISO certified container modified with DNV Pad eyes  (client choice)
• DDC Air Management Panel: 12 Cylinders, Air management panel, primary & secondary regulator supply to DDC Chamber
• Communication system:
  • • • Main: Amron – chamber communication
      • Backup: sound powered phone
• Video system: single CCTV for main lock monitoring for the DDC chamber
• Breathing mask – Chamber Operator: Connected to DDC BA supply line
• UPS System: Provided for the chamber and dive panel, with chargers
• Decompression Chamber: 60″ chamber with complete internal and external fit-out
• Control Panel:
  • • Includes O2/CO2 analysers and ambient atmosphere O2 analyser
    • Tungum/Brass valves and tubing for medical oxygen use
    • Stainless Steel /Brass valves and tubing for pressurization / depressurization of the chamber

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Certification

• IMCA D023 & IMCA D018 compliant certification package

• Full FMEA for the complete system

• Bureau Veritas class-witnessed testing

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Enquire about the 20Ft Containerized Decompression Chamber & Quad

For technical details, configuration options, certification packs, and quotation support, please contact:

Email: info@isubc.com
Phone: +44 (0)1253 767788

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Frequently Asked Questions

20Ft Containerized Decompression Chamber & Quad

What is a containerized decompression chamber?

A containerized decompression chamber is a complete hyperbaric decompression system installed inside a transportable container, typically a 20ft offshore or ISO container. It allows commercial diving teams to provide controlled decompression and emergency treatment for divers directly on site or onboard vessels without requiring a fixed hyperbaric facility.

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What is a twin-lock decompression chamber?

A twin-lock decompression chamber consists of two connected compartments, usually referred to as the main lock and entry lock. This configuration allows divers to enter or exit the chamber without affecting the pressure inside the main compartment, enabling continuous treatment and operational flexibility during decompression procedures.

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Why are containerized decompression chambers used in commercial diving?

Containerised chambers provide a mobile and self-contained decompression facility for offshore and inshore diving operations. They are widely used because they:

• Allow rapid mobilisation to vessels or project sites
• Provide controlled decompression for surface-supplied diving
• Support emergency recompression treatment if required
• Integrate with dive control and life support systems
• Meet industry safety and compliance requirements

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What diving operations require a decompression chamber?

Decompression chambers are commonly used in:

• Offshore commercial diving operations

• Harbour and marine civil engineering projects

• Salvage and underwater recovery operations

• Offshore wind farm installation and maintenance

• Oil and gas subsea construction

• Research and inspection diving campaigns

Many diving standards and project specifications require a DDC to be available whenever surface-supplied diving operations are conducted.

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What standards apply to commercial diving decompression chambers?

Commercial diving decompression chambers are typically designed and operated in accordance with recognised industry standards such as:

• IMCA D018 – Testing and certification of diving plant and equipment

• IMCA D023 – Design for containerised diving systems

• Classification society approvals such as Bureau Veritas or similar

• National diving regulations depending on operating region

Compliance with these standards ensures the system meets recognised safety, testing, and operational requirements.

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What is included in a containerized decompression chamber system?

A typical 20ft containerised decompression chamber package includes:

• Twin-lock decompression chamber

• Communications system for chamber operator

• Oxygen and carbon dioxide monitoring

• Life support monitoring equipment

• Air storage cylinders or gas supply integration

• Video monitoring and system displays

• UPS power backup systems

These systems are integrated within the container to create a fully operational decompression facility.

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What size chamber is typically used in a 20ft container system?

Many commercial containerised decompression chambers use a 1500 mm (60 inch) diameter twin-lock chamber, which provides sufficient internal space for diver treatment while maintaining compatibility with container transport dimensions.

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What industries use containerized decompression chambers?

Containerised decompression chambers are used across multiple subsea and marine industries including:

• Commercial diving contractors

• Offshore energy and oil & gas operations

• Offshore wind installation

• Marine civil engineering companies

• Salvage and subsea recovery teams

• Government and research diving programmes

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How is a containerized decompression chamber transported?

These systems are designed for standard transport and offshore lifting, typically using:

• ISO container handling

• Offshore cranes via certified lifting points

• Vessel deck mobilisation

• Road transport using flatbed trailers

This portability is one of the main advantages of containerised decompression systems.