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PCCI Hyperbaric Systems
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Products • Tunneling

Tunneling Hyperbaric Systems

Built for the Conditions Underground Demands

Engineering Philosophy

Core Design Priorities

Every PCCI chamber shares the same foundational engineering philosophy, regardless of size, shape, or configuration.

Worker & Operator Safety

Medical-grade, FDA 510(k) cleared, PVHO-rated, NFPA 99 compliant fire suppression systems for maximum patient & operator safety.

System Reliability & Longevity

Engineered to perform consistently over decades of operation with forward-thinking design decisions.

Rugged Design & Durability

Designed and fabricated to perform in challenging environments of tunneling operations. Our tunneling chambers are designed and built to be transported between multiple work sites, installed in confined space environments and withstand rugged construction zones underground.

Low-Maintenance Profile

Built for endurance, with a low-maintenance profile that tunneling intervention crews can easily manage.

Overview

Customized Intervention Solutions

PCCI Hyperbaric Systems offers customized intervention solutions for tunneling construction projects, engineered to perform in the most challenging excavation environments.

TBM

Shuttle Lock

Medical Air Lock

SAT System

Product line

System Portfolio

Models 6203D & 8003D

TBM Manlock

Compact. Reliable. Built for the Tunnel Face.

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Purpose-built for installation on Tunnel Boring Machine shields, providing safe and efficient
worker entry and exit in demanding underground environments.

Primary use:

Worker entry/exit at tunnel face via TBM

Lock type:

Dual

Occupancy:

3+1 Main, 3+1 Entry

Pressure Range:

Up to 10 bar (147 psig)

BIBS stations:

8 stations

Fire suppression:

Deluge System Primary, Water-based fire extinguisher as back-up

Standards:

ASME Section VIII Div. I
PVHO-1
EN 12110 European Standard
OSHA for Compressed Air 1926-803
Any Local OSHA Standards

Internal Diameter:

88.96 in (226 cm)

Model 5406D

Shuttle Lock

Seamless Transfer. Every Time.

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Dual-lock system engineered to safely transport tunnel workers under pressure from the TBM Manlock to a topside Medical Air Lock or Saturation System.

Primary use:

Worker transfer under pressure, TBM to topside

Lock type:

Dual

Controls:

No electric power required; detachable console

Communications:

Primary + Back-up Systems

Transport:

Rail Car & Craine with detachable protective frame

Occupancy:

6+1 Main / 1+1 Entry

Internal Diameter:

54 in (138 cm)

Containerized length:

17 ft (524 cm)

Standards:

ASME Section VIII Div. I
PVHO-1
EN 12110 European Standard
OSHA for Compressed Air 1926-803
Any Local OSHA Standards

M-7800 Series

Medical Air Lock

Topside Treatment. No Compromises.

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Dual-lock system designed and built to ASME-PVHO-1 for operating pressure ranges between 5 and 10 bar. Container-integrated for fast, straightforward deployment.

Primary use:

Extended topside medical treatment

Lock type:

Dual

Occupancy:

6+1 Main / 1+1 Entry

Pressure range:

Up to 5 bar (73.5 psig)

Standards:

FDA Cleared
NFPA 99 Compliant
ASME Section VIII Div. I
PVHO-1
EN 12110 European Standard
OSHA for Compressed Air 1926-803
Any Local OSHA Standards

Transport:

Customized ISO shipping container

Internal Diameter:

78 in (198 cm)

Vessel Length:

15 ft (457 cm)

Topside · 7810D SAT

Saturation Systems

Maximum Flexibility for Maximum Depth.

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Custom designed for 6 to 25 occupants, with pressure capability up to 18 bar (~270 psig). Multiple lock configurations with universal NATO-style adapter flange.

Occupancy:

Main Up to 25 / Entry 1+1

Pressure range:

Up to 18 bar (~270 psig)

Coupler:

Compatible with TBM & Shuttle

Customization:

Multiple lock configurations

CO₂ scrubber:

Mandatory

Internal Diameter:

78 in (198 cm)

Transport:

Customized ISO shipping containers

Standards:

ASME Section VIII Div. I
PVHO-1
EN 12110 European Standard
OSHA for Compressed Air 1926-803
Any Local OSHA Standards

Why PCCI

Engineered to Perform

Custom-engineered for your TBM and project specifications.

Built to the highest global safety standards.

Engineering expertise and safety pedigree.

Global support to keep your project moving.

Compliance Standards

ASME Pressure Vessel & Boiler Code (PVBC)

All pressure vessels associated with PCCI Hyperbaric Chamber Systems are built to ASME PVBC, Section VIII, Div. 1 for certified structural integrity.

ASME Pressure Vessel Human Occupancy-1 (PVHO-1)

The pressure vessel accommodating patients and attendants is built to PVHO-1 standards, the most rigorous for safe human occupancy.

NFPA-99 Compliant Fire Suppression Systems

All PCCI multiplace chambers include fire suppression systems compliant with NFPA 99, Chap. 14, Hyperbaric Facilities.

ISO 9001-2015 Quality Management System (QMS)

All chambers are designed and fabricated to internationally recognized QMS standard ISO 9001-2015, certifying proven, repeatable processes with consistent results.

EN 12110 - CEN

Compliant with European EN 12110 standard for design and fabrication requirements specific to tunneling chambers and related equipment.

OSHA 29 CFR 1926.803

Built to align with OSHA standard 29 CFR 1926.803 establishing safety and health standards for construction workers operating in compressed air environments, including tunneling. Any applicable local OSHA standards are followed as well.

Specifications

Tunneling Product Matrix

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Every PCCI tunneling system is custom-designed for your specific excavation requirements.

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FAQ's

FAQ's

A medical lock is a hyperbaric chamber kept at a tunneling site to recompress and treat workers who develop decompression sickness after working in compressed air. It lets treatment begin immediately instead of transporting the worker to a hospital.
A TBM manlock is a pressure chamber mounted on a tunnel boring machine shield that lets workers enter and exit the pressurized tunnel face safely. PCCI’s Models 6203D and 8003D are dual-lock manlocks rated up to 10 bar (147 psig) with 8 BIBS stations.
A shuttle lock is a transportable chamber that moves workers under pressure from the TBM manlock to a topside medical lock or saturation system. PCCI’s Model 5406D is a dual-lock shuttle lock that needs no electric power and uses a detachable control console.
Ratings depend on the system: PCCI’s M-7800 Series medical air lock operates up to 5 bar (73.5 psig), its TBM manlocks up to 10 bar (147 psig), and its 7810D topside saturation system up to 18 bar (about 270 psig) for 6 to 25 occupants.
PCCI tunneling chambers are built to ASME Section VIII Division 1, ASME PVHO-1, European standard EN 12110 for tunneling air locks, and OSHA 29 CFR 1926.803 for compressed air construction work, plus any applicable local OSHA rules.

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