Diving products

Decompression Chambers

Decompression chambers give divers a controlled way to complete staged decompression on the surface and provide emergency recompression treatment when it is needed. Our range spans deck decompression capability, air-transportable and containerised configurations, and dedicated diver-attendant recompression systems for offshore and vessel-based operations.

The table below is also the model switcher — click any row to see that model in full below, including its complete specifications and features.

Compare decompression chamber models
Model	Capacity	Max. operating depth	Diameter	Empty weight
Deck Decompression Chamber Ø1600	Max. 4 occupants (3 MC + 1 EL)	50 msw / 5.13 bar	± 1,600 mm	± 2,700 kg
Air Freight IATA-Compliant Ø1500mm	Max. 4 occupants (3 MC + 1 EL)	50 msw / 5.13 bar	1,500 mm	± 3,750 kg
D.A.R.T. + A.T.E.L.	1 patient + 1 attendant (D.A.R.T.)	50 msw / 5.13 bar	± 1,190 mm (D.A.R.T. max. inner diameter)	± 300 kg (D.A.R.T., empty)
Deck Decompression Chamber Ø1800	Max. 4 occupants (3 MC + 1 EL)	50 msw / 5.13 bar	± 1,800 mm	± 3,600 kg
Basic Deck Decompression Chamber – 1600Ø	Max. 4 occupants (3 MC + 1 EL)	50 msw / 5.13 bar	± 1,600 mm (also Ø1800 / Ø2000)	± 2,700 kg
High-End and High Quality Containerised DDC	Max. 4 occupants (3 MC + 1 EL)	50 msw / 5.13 bar	Not published (20 ft DDC 1600 unit)	± 2,700 kg (chamber only)

Deck Decompression Chamber Ø1600

Two-compartment chamber with BIBS, an integrated supply lock and a 50 msw / 5.13 bar working depth, built for straightforward operation and fast, easy maintenance.

Max. 4 occupants (3 MC + 1 EL)Capacity

50 msw / 5.13 barMax. operating depth

± 1,600 mmInside diameter

± 2,700 kg (standard, no options)Empty weight

The Hytech-Pommec Decompression Chamber Ø1600 is designed for straightforward operation, fast action and easy maintenance. Its pressurisation system is over-dimensioned for structural performance and improved flow. The chamber accommodates a maximum of four occupants, with up to three occupants in the Main Chamber (MC) and one occupant in the Entrance Lock (EL). The maximum operating depth is 50 msw / 5.13 bar.

The MC supports several occupant configurations: two occupants lying down, three occupants sitting, or two occupants lying down with one attendant. The chamber has an inside diameter of approximately 1,600 mm and an overall length of approximately 3,600 mm.

Standard chamber

Capacity: Max. 4 occupants
Main Chamber capacity: Max. 3 occupants
Entrance Lock capacity: Max. 1 occupant
MC configuration: 2 occupants laying down
MC configuration: 3 occupants sitting
MC configuration: 2 occupants laying down + 1 attendant
Maximum operating depth: 50 msw / 5.13 bar
Design pressure: 5.65 bar
Hydrostatic test pressure: 8.1 bar
Depth gauges: Dual scale, 0.25% accuracy
Overall length: ± 3,600 mm
Inside diameter: ± 1,600 mm
Empty weight: ± 2,700 kg standard, no options
Inner length EL: ± 1,100 mm
Inner length MC: ± 2,400 mm
Volume EL: ± 1.9 m³
Volume MC: ± 4.7 m³
Supply lock length: ± 320 mm
Supply lock diameter: ± 230 mm
Viewport free diameter: ± 150 mm
Door diameter: ± 700 mm
Design temperature: -10°C to +50°C
Paint: Base and top layer white RAL 9010
MC primary supply control valve: 1x external
MC secondary supply control valve: 1x external
EL primary supply control valve: 1x external
EL secondary supply control valve: 1x external
MC exhaust control valve: 1x external
EL exhaust control valve: 1x external
Essential safety valve: 1x
Patient bunks: 2 foldable bunks in MC
Viewports: 2 total: 1 in EL and 1 in MC
Viewport diameter: 150 mm
Skid HP cylinder capacity: Up to 10 × 50 litre cylinders; cylinders optional
Lifting provisions: 2 lifting eyes
BIBS MC connections: 3 + 1 mask connection points
BIBS EL connections: 1 + 1 mask connection points
Secondary communication: 3 hammers
Internal LED lighting: MC 2x, EL 1x
UPS duration: Minimum 2–3 hours
UPS-supported equipment: Communication, one MC internal light, analyser
Countdown timer: Triple timer
Depth gauges in control panel: 2 precision gauges
Precision depth gauge accuracy: 0.25% FS
Precision depth gauge scale: 0–250 fsw / 0–76 msw
Pressure vessel standard: PED 2014/68/EU Module G
Pressure vessel standard: NEN-EN 13445:2021
Window standard: ASME PVHO-1-2023
Window certification: PVHO VP-5
Safety philosophy: IMCA D014, latest revision
Examination/testing guidance: IMCA D018, latest revision
Documentation language: English

Standard analyser

Analyser power supply: 24 VDC
Inlet gas pressure: 0.1–5.0 bar
Inlet gas flow: 20–50 ln/h
O₂ measurement range: 0–100%
CO₂ measurement range: 0–1%
O₂ low alarm: <19%
O₂ high alarm: >23%
CO₂ high alarms: 0.20% and 0.50%

Optional chamber specs

BIBS masks: 5 masks
BIBS mask connection: Quick-connect/disconnect male plugs
Back Pressure Regulator requirement: Required when using BIBS masks deeper than 30 msw
HP secondary air supply: 5 × 50 litre cylinders
HP cylinder pressure: 300 bar
Alternative HP configuration: 7 cylinders at 200 bar when 300 bar filling is unavailable
Female flange standard: STANAG 1079
Headset connection: 7-pin connector
Cooler ambient chamber-area range: 18–24°C
Maximum compressed-air temperature for cooler: 40°C
Cooler water supply requirement: Fresh water at 5°C
EL fire extinguisher: 3 litre
DCMC HMI: 12-inch touchscreen
DCMC depth units: msw, bar, ATA, psi, kPa
Automatic pressure control HMI: 15-inch touchscreen instead of 12-inch
Automatic pressure-control modes: Automatic, semi-automatic and manual override
Pre-programmed dive-table examples: US Navy, Comex, DatCoDat or Dciem

20 ft container

Container type: ISO/CSC standard 20 ft container
Container dimensions: 6060 × 2440 × 2590 mm
Main power input: 230 VAC, 50 Hz, 16 A, 1x
Internal lighting: 3 units
Emergency internal lighting: 2 units
Wall sockets: 2x European connections, 230 VAC, 50 Hz
DDC power connection box: 1x
Container fire extinguisher: 5 kg portable foam extinguisher

Optional container specs

Insulated-container cladding: RAL 9010
Inverter cooling/heating: 1 unit
Inverter operating outside-temperature range: 5°C to +40°C, if container is insulated
Emergency breathing apparatus cylinder: 6 litre HP cylinder
DNV offshore container standard: DNVGL-ST-E271 / ISO 10855

Air Freight IATA-Compliant Decompression Chamber Ø1500mm

Fast transport, rapid deployment, uncompromising quality.

Max. 4 occupants (3 MC + 1 EL)Capacity

50 msw / 5.13 barMax. operation depth

1,500 mm (IATA air-transportable)Diameter

± 3,750 kgEmpty weight

This IATA-Compliant Decompression Chamber is suitable for transport by A300, A310, B747, B767, B777 and A340 aircraft. Maximum dimensions stay within the limits of an IATA AAP container.

The Hytech-Pommec 1500 mm diameter IATA-compliant decompression chamber has been specifically developed to maximize deployability while simplifying global transportation. Designed in accordance with IATA cargo dimensional requirements, the chamber can be transported efficiently by air, enabling rapid mobilization and deployment wherever it is needed.

D.A.R.T. + A.T.E.L.

Compact, transportable hyperbaric system for surface decompression, emergency treatment and transfer under pressure.

D.A.R.T. and A.T.E.L. are sold and specified as a matched pair. Use the selector below to see the joint system first, then each component's own full specifications and features.

Overview

D.A.R.T. main chamber with attachable A.T.E.L. entrance lockSystem configuration

D.A.R.T.: 50 msw / 5.13 bar; A.T.E.L.: 50 msw / 5.13 barWorking pressure

D.A.R.T. rotating STANAG male flange to A.T.E.L. fixed STANAG female flangeConnection

Occupants can transfer into/out of the D.A.R.T. while it remains under pressureTransfer capability

The D.A.R.T. & A.T.E.L. system is a compact, transportable hyperbaric solution designed for surface decompression, emergency treatment, and transfer under pressure. The D.A.R.T. accommodates one patient and one attendant, while the attachable A.T.E.L. entrance lock enables safe transfer without depressurising the main chamber. Built from seawater-resistant aluminium, the system combines low weight with durability and easy transport by road, air, or sea. A STANAG 1079 connection allows integration with compatible hyperbaric facilities and treatment chambers. Dual air-supply systems, BIBS oxygen breathing equipment, integrated controls, viewports, lighting, and communication systems support safe and efficient operation. With rapid deployment and a range of optional life-support, cooling, monitoring, and gas-supply equipment, the D.A.R.T. & A.T.E.L. system is designed for demanding commercial, offshore, and emergency diving applications.

Joint specifications

System configuration: D.A.R.T. main chamber with attachable A.T.E.L. entrance lock
Purchase-together configuration: Intended to function as a unified set with matching calibration
Working pressure: D.A.R.T.: 50 msw / 5.13 bar; A.T.E.L.: 50 msw / 5.13 bar
Connection: D.A.R.T. rotating STANAG male flange to A.T.E.L. fixed STANAG female flange
STANAG standard: STANAG 1079
Transfer capability: Occupants can transfer into/out of the D.A.R.T. while it remains under pressure
Combined length reference supplied: 2300 mm + 1,705 mm – 700 mm
Interconnection gas hoses: 1× air hose w/ couplings, 2m; 1× oxygen hose w/ couplings, 2m
BIBS mask requirement (IMCA D023): D.A.R.T.: 2+1 spare; A.T.E.L.: 1+1 spare
Common design-temperature range: -10°C to +50°C
Optional caisson indicator: Available for D.A.R.T. and A.T.E.L.; not for decompression purposes
Optional combined container: Houses both D.A.R.T. and A.T.E.L.
Container mains supply: 230V, 50Hz
Container construction: Aluminium frame, internally bonded plastic panels
Container certification: No CSC or other certification
Optional Lloyd's Registration Certification: FAT verification + piping and electrical-layout certification

Additional details from the source description

Further optional additions described in the source material but not broken out as separate spec rows: an A.T.E.L. optional hose set (1× 4m air hose + 1× 4m oxygen hose); an optional aluminium deck mounting frame with stainless-steel hardware that secures the D.A.R.T. to a ship deck or truck bed while remaining removable for transport; an optional combined D.A.R.T. + A.T.E.L. container with a side-mounted roller shutter for external operation, doors on both short sides for direct A.T.E.L. access and rapid D.A.R.T. deployment, and overhead lighting above both control panels; disposable CO₂ absorption cartridges (1.1 kg each, keeping CO₂ below 0.5% for 4+ hours and below 1% for around 6 hours in normal operation — the Package B scrubber always needs two) or a reusable stainless-steel/POM alternative of about the same adsorption-agent capacity; an optional Paterson digital countdown timer (3 stages, simultaneous or independent, audible end signal); and an optional HCygnus Tech reversible heat pump (air-cooled, single refrigeration circuit, supplies cold or hot water, replacing the Package C cold-water machine when selected). Standard D.A.R.T. and A.T.E.L. units comply with the PED (2014/68/EU) European Pressure Equipment Directive and follow the AD Merkblätter 2000 design method; the source material notes CE certification will accompany the A.T.E.L. specifically.

D.A.R.T.

Diver Attendant Recompression Transportable — the main chamber, for one patient plus one attendant.

Max. 2 occupants (1 attendant + 1 patient on stretcher)Capacity

50 msw / 5.13 barWorking pressure

± 1,190 mmMax. inner diameter

± 300 kg empty / ± 600 kg max. incl. occupantsWeight

Accommodates a maximum of two occupants: one patient on the stretcher and one attendant. Internal dimensions allow the attendant to reach the patient's head and chest for resuscitation. Special shape provides enough space for a diver lying down together with an attendant during extended transportation — tests have demonstrated transportation durations of up to eight hours in emergency cases.

D.A.R.T. specifications

Full name: Diver Attendant Recompression Transportable
Capacity: Max. 2 occupants: 1 attendant + 1 patient on stretcher
Working pressure: 50 msw / 5.13 bar
Test pressure: 75 msw / 7.55 bar
Overall length: ± 2,300 mm
Max. inner diameter: ± 1,190 mm
Width: ± 1,342 mm
Height: ± 1,410 mm
Internal volume: ± 1.15 m³ / 1,150 litre
Door diameter: ± 660 mm
STANAG flange opening: ± 660 mm (tech-spec section) / 800 mm (scope-of-supply section — source doc has this discrepancy)
Supply lock diameter: ± 168 mm
Supply lock internal length: ± 230 mm
Viewport free diameter: ± 140 mm
Number of viewports: 3×
Stretcher length: ± 2,000 mm
Stretcher dimensions: 2,000 × 480 mm
Weight excl. options/cylinders: ± 300 kg
Weight max. incl. occupants: ± 600 kg
Main component material: Aluminium (seawater-resistant type)
Design temperature: -10°C to +50°C
Depth gauge: Dual scale, 0.25% accuracy
Control-panel depth-gauge scale: 0–250 fsw / 0–76 msw
Flange type: STANAG male
Breathing medium: Oxygen
Chamber medium: Air
Independent air pressurisation systems: 2×
Air supply couplings: 2× quick connect/disconnect
Air supply min. operating pressure: 8 bar
Oxygen supply coupling: 1× quick connect/disconnect
BIBS connections: 2+1 masks
BIBS operating depth: Until 18 msw with overboard dump masks
Transport wheels: 3×
Lifting eyes: 3×
Cylinder supports: 1× each side
Max cylinder support capacity: 40 litre, 225 bar
Standard electrical input: 24VDC external + 230VAC
Standard communicator: 2-wire
Communicator power: 6× 1.5V batteries
Backup battery: 2× maintenance-free 12Ah lead-gel, in series
Backup battery voltage: 24VDC
Backup battery housing/protection: Polycarbonate, IP55
LED lighting backup duration: ≥40 hours
CO₂ scrubber backup duration: 20 hours
Package B scrubber: Dual absorption cartridge, electric fan
Package B cartridges supplied: 2× Medisorb
Package C ambient temp reference: Up to 40°C
JUMO LOGOSCREEN display: 5.7" TFT colour
JUMO format: 144 × 144 mm
JUMO analog inputs: 6×
JUMO power supply: 20–30V AC/DC, 48–63Hz (ELV)
Temperature transmitter range: -20°C to 75°C
Humidity transmitter range: 0–100%
Temperature accuracy: ±0.6°C
Humidity accuracy: ±2.5%
Oxygen transmitter range: 0–25%
CO₂ transmitter range: 0–1%
Optional dual-pack O₂ cylinder: 1× 40 litre, 200 bar
Optional dual-pack air cylinder: 1× 40 litre, 200 bar
Optional dual-pack HP reducers: 2×, 200–15 bar
Optional additional air pack: 4× 50 litre, max. 200 bar
Optional additional oxygen pack: 4× 50 litre, max. 200 bar
Optional hyperbaric fire extinguisher: 3 litre

A.T.E.L.

Attachable Transportable Entrance Lock — connects to the D.A.R.T. so occupants can transfer in and out while it stays pressurised.

50 msw / 5.13 barWorking pressure

± 1,200 mmMax. inner diameter

± 350 kg / ± 450 kg incl. occupantWeight

Fixed STANAG female bayonetFlange type

Connects directly to the D.A.R.T. as its entrance lock. Small, lightweight, supports occupant transfer in/out while D.A.R.T. stays pressurised. Fixed female STANAG bayonet flange (STANAG 1079) connects to the D.A.R.T. Foldable internal seat from which the occupant operates air/oxygen manifolds. Four low-resistance transport wheels, handle bars for manoeuvring. Skid construction positions the chamber on flat ground/paving for connection; height adjustable up to 39 mm on the skid. Two lifting eyes.

Deck Decompression Chamber Ø1800

A larger two-compartment deck decompression chamber with BIBS and a comprehensive standard scope of supply, offering more interior room than the Ø1600 model at the same 50 msw / 5.13 bar working depth.

Max. 4 occupants (3 MC + 1 EL)Capacity

50 msw / 5.13 barMax. operating depth

± 1,800 mmInside diameter

± 3,600 kg (standard, no options)Empty weight

The Hytech-Pommec Decompression Chamber Ø1800 combines straightforward operation with a comprehensive standard scope of supply. Designed for fast action, easy control and practical maintenance, with an over-dimensioned pressurisation system for structural performance and improved flow. Accommodates a maximum of four occupants: up to three in the MC, one in the EL. Maximum operating depth 50 msw / 5.13 bar, inside diameter approximately 1,800 mm.

MC supports three configurations: two lying down, three sitting, or two lying down with one attendant. Standard chamber includes two foldable patient bunks with fire-retardant mattresses, a foldable EL seat, two 150mm viewports, floor covering plates in both compartments.

Standard chamber

Capacity: Max. 4 occupants
Main Chamber capacity: Max. 3 occupants
Entrance Lock capacity: Max. 1 occupant
MC configuration: 2 occupants laying down
MC configuration: 3 occupants sitting
MC configuration: 2 laying down + 1 attendant
Maximum operating depth: 50 msw / 5.13 bar
Design pressure: 5.65 bar
Hydrostatic test pressure: 8.1 bar
Depth gauges: Dual scale, 0.25% accuracy
Overall length: ± 3,620 mm incl. control panel
Inside diameter: ± 1,800 mm
Empty weight: ± 3,600 kg standard, no options
Inner length EL: ± 1,120 mm
Inner length MC: ± 2,300 mm
Volume EL: ± 2.4 m³
Volume MC: ± 5.8 m³
Supply lock length: ± 320 mm
Supply lock diameter: ± 230 mm
Viewport free diameter: ± 150 mm
Door opening diameter: ± 700 mm
Design temperature: -10°C to +50°C
Paint: Base and top layer white RAL 9010
MC primary/secondary supply valve: 1x external each
EL primary/secondary supply valve: 1x external each
MC/EL exhaust control valve: 1x external each
Essential safety valve: 1x
Gas/liquid penetrators: Skin valves both sides
Supply lines: Internal silencers
Exhaust lines: External silencers
Internal deflector caps: Exhaust lines, depth gauges, analysers, safety valves
Patient bunks: 2 foldable bunks in MC
Viewports: 2 total (1 EL, 1 MC)
Viewport diameter: 150 mm
Supply-lock doors: Stainless Steel
Skid HP-cylinder capacity: Twelve 50 litre; optional
Lifting provisions: 2 lifting eyes
BIBS MC connections: 3 + 1 mask points
BIBS EL connections: 1 + 1 mask points
BIBS couplings: Quick connect/disconnect female
Secondary communication: 3 hammers
Internal LED lighting: MC 2x, EL 1x
UPS duration: Min. 2–3 hours
UPS-supported equipment: Communication, one MC light, analyser
Countdown timer: Triple, AAA battery
Control panel position: Head side
Control-panel depth gauges: 2 precision gauges, 0.25% FS, mirror scale, zero reset, 0–250fsw/0–76msw
MC fire extinguisher: Hyperbaric fire extinguisher
Pressure-vessel compliance: PED 2014/68/EU Module G, NEN-EN 13445:2021
Pressure-vessel assembly: CE certificate by EU notified body
Window standard: ASME PVHO-1-2023, PVHO VP-5 certificate
Safety/testing guideline: IMCA D014 / D018, latest revision
Documentation: Digital and hard copy, English, incl. operating/maintenance manual, electrical manual, electrical/piping diagrams, FAT report/IMCA compliance list, Certificates of Conformity

Standard O₂/CO₂ analyser

Same as the Ø1600 model's standard analyser: 24VDC power supply, 0.1–5.0 bar inlet gas pressure, 20–50 ln/h inlet gas flow, O₂ measurement 0–100%, CO₂ measurement 0–1%, with alarms at O₂ <19% / >23% and CO₂ 0.20% / 0.50%, both light and audible.

Optional chamber equipment

FMEA: Optional
Flowmeter: Integrated in panel for MC flushing
BIBS masks: 5 masks, inhalation/exhalation valves, overboard dump discharge/vent, quick connect/disconnect male plugs
BIBS gas selection: Oxygen or other gas, 2-action handle
Back Pressure Regulator: Required >30msw with BIBS masks
HP secondary air supply: 6× 50 litre, 300 bar (or 9× 200 bar alt.)
HP air bank: Own reducer + gauge
Female flange standard: STANAG 1079
Heating system: Explosion-proof electrical heat exchanger
Emergency communication: Battery-powered handsets, both compartments + control panel
Headset connector: 7-pin
CO₂ scrubber: Electrically driven, intrinsically safe fan
Oxygen make-up system: Small storage cylinder + control valves
Cooler: Fan + exchanger coil, sealed brushless motor, 5°C fresh water req.
Chiller: Process cooling water/antifreeze, ISO 9001/14001
EL fire extinguisher: 3 litre
Water deluge system: MC sprinkler nozzles + water storage tank, activated at panel or inside MC

DCMC (optional)

12" touchscreen HMI, monitors depth, supply pressures, flush rate, O₂/CO₂ (and optionally temperature); controls MC/EL lighting on/off/dim, auto-controls the scrubber on high CO₂, controls heating/cooling on/off/rpm and the cold-water unit on/off; depth units in msw, bar, ATA, psi or kPa; reads out pressure, O₂, CO₂, temperature, rate-of-change, flushing and timers with adjustable alarms, real-time logging and alarm storage; includes a UPS; replaces the depth gauges, analyser and alarms, light controls, supply gauges, triple timer and flowmeter (and the scrubber, heater and temperature controls when those options are chosen).

Automatic pressure control extension (optional)

A 15" HMI in place of the 12", profile controller, remote-controlled valves, PLC extension with software upgrade, and automatic / semi-automatic / manual override modes. The one-handle profile controller disengages the stepper motors on manual takeover; an independent secondary pressurisation/depressurisation system is included, along with pre-programmed dive tables (US Navy, Comex, DatCoDat, Dciem) and Lloyd's Register certification with a witnessed FAT.

20 ft container — technical detail

ISO/CSC certified 20 ft container, 6,060 × 2,440 × 2,590 mm, doors on both ends, 230VAC / 50Hz / 16A / 1× main power connection.

Optional container equipment — technical detail

Split-design inverter cooling/heating rated -5°C to +40°C when the container is insulated; the emergency breathing apparatus is a full-face positive-pressure mask with integrated speech diaphragm, 6 litre HP cylinder, back-pack harness and first-stage reducer; the offshore marine coating is grit-blasted with a 2-component zinc primer and two 2-component finish layers; the DNV offshore container standard is DNVGL-ST-E271 / ISO 10855.

Standard

Max. capacity of 4 occupants
Up to 3 in MC, 1 in EL
Max. operating depth 50msw/5.13bar
Two foldable patient bunks in MC
Fire-retardant mattresses
Foldable seat in EL
Two Ø150mm viewports
Integrated MC supply lock, stainless-steel doors, one-hand operation, interlock system
Skid foundation frame, space for twelve 50 litre HP cylinders (optional)
Floor covering plates both compartments
Two lifting eyes
Spare pressure-vessel penetrators
Double-hinged chamber doors
BIBS in MC and EL, overboard dump, 3+1/1+1 connection points, quick connect/disconnect female couplings
Hytech-Pommec chamber comm system
Internal speaker/microphone both compartments
Secondary hammer comm system
UPS/back-up battery
Pressure-proof internal LED lighting
Digital Caisson pressure indicator
Triple digital countdown timer
O₂/CO₂ analyser
Head-side control panel
Two precision depth gauges
Hyperbaric fire extinguisher in MC
Supply/exhaust line silencers
Internal deflector caps
Essential safety valve
Skin valves both sides of penetrators

Conditional features

Camera observation mandatory when control panel on dished side required per IMCA D023 Section 3 Item 7.3
One hyperbaric video camera in EL
One 17" TFT colour monitor

20ft container features

ISO/CSC certified
DDC installed inside
RAL colour TBD
Doors on both ends
Original CSC certificate remains valid
Basic electrical supply system
Three internal lighting units
Two emergency lighting units
Two European wall sockets
DDC power-supply connection box
Separation walls
Chamber entry
Cylinder inspection hatch (if chosen)
Door with window to chamber section
Chamber air/BIBS/exhaust connections
5kg portable foam fire extinguisher

Optional

Integrated flowmeter for MC flushing
Five BIBS masks
BIBS gas selection valve
Back Pressure Regulator
HP secondary air supply
Female STANAG connection flange
Explosion-proof electrical heating system
Emergency communication handsets
7-pin headset
Carbon dioxide scrubber
Oxygen injection level control
Chamber cooler
Chiller
3 litre fire extinguisher for EL
Water deluge system for MC
DCMC
Automatic pressure-control extension for DCMC
Pre-programmed dive tables
Lloyd's Register certification
FMEA

Optional container features

Insulated walls/ceiling with RAL 9010 cladding
Liquid-proof anti-slip rubber floor
Split-design inverter cooling/heating
Operator oxygen analyser
Emergency breathing apparatus
Umbilical connection to DDC low-pressure air supply
Offshore marine coating
Certified 20ft DNV offshore container

Basic Deck Decompression Chamber – 1600Ø

Entry-level model with the same Hytech-Pommec quality standard, customizable sizes (Ø1600 / Ø1800 / Ø2000 mm).

Max. 4 occupants (3 MC + 1 EL)Capacity

50 msw / 5.13 barMax. operating depth

± 1,600 mm (also available Ø1800 / Ø2000)Inside diameter

± 2,700 kg (standard, no options)Empty weight

The Hytech-Pommec Basic Deck Decompression Chamber is equipped with all essential options and systems required for safe and efficient operation. This entry-level model offers the same high standards of quality, reliability, and durability as all other products within the range.

Available in several diameters (Ø1600mm, Ø1800mm, Ø2000mm), and can be equipped with a wide range of optional features to customize the DDC for specific operational requirements.

High-End and High Quality Containerised DDC

20ft containerised DDC 1600 with automatic pressure control and IMCA D023 compliance for rapid, self-supporting deployment.

Max. 4 occupants (3 MC + 1 EL)Capacity

50 msw / 5.13 barMax. operation depth

± 2,700 kg (chamber only, without options)Empty weight

20 ft, ISO/CSC + ISO10855-3 & DNV 2.7-1 certifiedContainer

The DDC 1600 combines automatic pressure control, IMCA D023 compliance, and a compact containerised design, allowing operators to deploy quickly while maintaining maximum safety and efficiency.

The 20ft Containerised DDC 1600 provides a robust and ready-to-operate solution for demanding diving applications, combining reliability, ease of use and practical deployment in one compact containerised system.

Decompression Chambers

Deck Decompression Chamber Ø1600

Standard

Optional

Air Freight IATA-Compliant Decompression Chamber Ø1500mm

Standard

Optional

D.A.R.T. + A.T.E.L.

Overview

D.A.R.T.

D.A.R.T. specifications

A.T.E.L.

A.T.E.L. specifications

Deck Decompression Chamber Ø1800

Standard

Conditional features

20ft container features

Optional

Optional container features

Basic Deck Decompression Chamber – 1600Ø

Chamber Design

Safety & Life Support

Communication & Monitoring

Control & Flexibility

High-End and High Quality Containerised DDC

Standard features (configuration-dependent — multiple layouts possible)

Container features

Compressor and HP air bank features