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Specialized Modular Buildings

Toxic Gas Refuge

Protected refuge during toxic gas incidents.

A Toxic Gas Refuge (TGR) provides a shelter-in-place area during a major gas release. HVAC, positive pressure, breathing air and monitoring systems support personnel protection while the site manages the incident and evacuation.

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Toxic Gas Refuge
Integrated Systems

Product configuration

Enclosure & Airlock

Airlock entrances with air curtains, an envelope specified to leakage class L1 under EN 1886, and positive pressure at setpoints of 50 / 100 Pa.

HVAC & Gas Detection

Hazardous-area HVAC with monitoring and shutdown, toxic gas detectors and coordinated safety controls.

Breathing Air System

High-pressure breathing air storage, up to 300 bar, with a pressure release panel and personal protective equipment.

Product Specifications

Design parameters

ItemConfiguration
Protection duration1–4 hours or longer, sized for the incident scenario
OccupancyCustomized layout, up to 500 persons
Blast designUp to 10 psi or other specified criteria
Fire performance2-hour resistance / thermal insulation and 4-hour integrity
Design environment−20°C to +55°C
CoatingCX environment under ISO 12944
Design lifeUp to 15–20 years

Performance, dimensions and approvals are specified for the project design basis and selected module.

Configuration & Approvals

Defined for your operating requirements.

Options & Interfaces

CO₂ scrubbing, PA/GA, telecommunications, CCTV, UPS and batteries, sand trap louvres or inertial filters, and furniture.

Design Basis

Designs can meet ASCE, DNV 2.7-1 or other specified codes. The site hazard assessment, required occupancy and refuge duration establish the project design basis.

MDOW Project Coordination

MDOW coordinates technical clarification, equipment interfaces, modular supply scope and delivery with the specialist manufacturing resources.

Product Views

From layout to integrated module.

Define your module requirements.

Share the site conditions, operating duty, layout and required interfaces with MDOW.

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