DIVING EQUIPMENTS
Optimized Air Decompression Chamber
J. K. Subsea Engineering Pvt. Ltd. builds the Optimized Air Decompression Chamber, Model No. JK-ADC-OP, a containerized decompression chamber designed to give diving contractors the core functionality of a full twin lock system while trimming the gauge sizes, regulator sourcing, and internal fit-out down to what a standard operation actually needs. Housed in a 20ft offshore container fitted with a DNV 2.7-1 lifting padeye, it carries the same 60 inch twin lock chamber shell and ASME PVHO build quality as our other chambers, just configured as a leaner, more economical package.
What is the Optimized Air Decompression Chamber?
This chamber takes the same 60 inch, ASME PVHO rated twin lock shell used across our decompression range and pairs it with a scaled down control panel and support system, aimed at operators who want a fully functional chamber without paying for capacity or redundancy they won’t use. Gauges on the control panel run smaller than our standard builds, the HP air and oxygen regulator is sourced from J. K. Subsea’s own manufacturing rather than a third party brand, and the internal fit-out covers the essentials, lighting, a camera in the main lock, fire suppression, and a built in breathing system, without the extra duplication found on our TPI approved mix gas or control panel chambers. The shell itself is still constructed to ASME Section VIII Division 1, PVHO-1 (2022), and DNV TPI approved drawings, Design complaint with IMCA guideline D018 and D023 carrying a DNV stamped nameplate, so build quality on the pressure vessel itself is not reduced.
Key Features of the Optimized Air Decompression Chamber
- Full ASME PVHO Rated Shell: 60 inch twin lock chamber built to ASME Sec VIII Div. 1 and PVHO-1 (2022), fabricated to DNV TPI approved drawings with a DNV stamped nameplate.
- 20ft Container with DNV 2.7-1 Padeye: Standard offshore container fitted with a certified lifting padeye for crane handling.
- JKSEPL Manufactured HP Regulator: High pressure air and oxygen regulator built in-house (Model JK-PR-P-BR-50-200/15-DPS), rather than sourced from a third party brand.
- Core Internal Life Support: CO₂ scrubber, hyperbaric light in both locks, hyperbaric camera in the main lock, built in breathing system, fire extinguisher, and fire retardant mattresses.
- IMCA Guideline Design: Follows IMCA D018 for diving plant testing and IMCA D023 for surface oriented air diving systems.
- Compact Control Panel Gauges: 6″ entry and main lock depth gauges and 2″ supply gauges, sized for straightforward monitoring without the bulk of larger gauge faces.
- Single AC Unit: One 1 TR split air conditioning unit to manage internal temperature, sized for the chamber’s footprint.
- Battery Backup for Up to 8 Hours: Keeps the control panel running through a mains power interruption.
Applications of the Optimized Air Decompression Chamber
Standard Offshore Diving Spreads: Suits operations that need a reliable twin lock chamber without the added equipment of a full spec build.
Dive Support Vessel Operations: A 20 ft container footprint that cranes onto a DSV and connects to power with no extra fabrication.
Budget Conscious Diving Contractors: Gives smaller operators access to a properly built ASME PVHO chamber at a lower equipment cost.
Secondary or Backup Chamber Units: A cost effective second chamber for fleets that already run a fully equipped unit elsewhere.
Recompression Treatment: Twin lock design still allows an attendant to enter the entry lock while a diver remains under pressure in the main lock.
Technical Specifications of the Optimized Air Decompression Chamber (JK-ADC-OP)
LARS Specifications
| Specification | Detail |
|---|---|
| Model No. | JK-LARS-SB-ALPHA-OPT |
| A-Frame Rating | 1.5 Tons |
| Rated Load of Main Winch | Approx. 1 Ton, tested to 1.2 Tons as per IMCA |
| Operating Speed (Main Winch) | 18 m/min |
| Guide Weight Winch Rated Load | 1 Ton SWL, tested to 1.5 Tons |
| Reeving | Double reeved through guide weight to A-frame |
| Hydraulic Power Unit | Open frame, self-contained, electric |
| Pump | Positive displacement, twin motor |
| Motor | 20 HP, 415V, 30 Amp, 1745 RPM |
| Working Pressure | 200 Bar |
| No. of Cylinders | 2 Nos |
| Water Capacity | 50 litres (each cylinder) |
For full details, download the complete technical data sheet.
Certifications & Standards for the Optimized Air Decompression Chamber Manufacturer
The chamber shell is built to ASME Section VIII Division 1 and ASME PVHO-1 (2022), constructed to DNV TPI approved drawings and carrying a DNV stamped nameplate on completion. The system follows IMCA D018 for diving plant examination and testing and IMCA D023 for surface oriented air diving system design, the same guidelines applied across J. K. Subsea’s full decompression chamber range.
IMCA D018
Certified
IMCA D023
Certified
TPL
Appproved
Why Choose J. K. Subsea Engineering for the Optimized Air Decompression Chamber?
- Same Shell Quality, Lower Equipment Cost: Full ASME PVHO rated chamber shell with a trimmed down panel and internal fit-out.
- In-House Built Regulator: HP air and oxygen regulator manufactured by J. K. Subsea rather than sourced externally.
- Right Sized for Standard Operations: Gauge sizes and AC capacity matched to typical offshore diving needs rather than oversized for larger spreads.
- Still TPI Verified: DNV TPI approved drawings and a stamped nameplate on the pressure vessel, regardless of the trimmed support package.
- Strong After-Sales Support: Ongoing technical support for offshore and subsea clients worldwide.
- Wide Product Range: We also manufacture and supply fully equipped TPI approved decompression chambers, diving machinery containers, single basket LARS, diver air panels, and diving fittings and valves, supplied worldwide.
Frequently Asked Questions About the Optimized Air Decompression Chamber
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Get Your Optimized Air Decompression Chamber Quote Today
Need a properly built decompression chamber without paying for capacity you won’t use? Talk to our team at J. K. Subsea Engineering Pvt. Ltd. for pricing on our Optimized Air Decompression Chamber, configuration options, and delivery timelines.