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Air Trailers for Industrial Turnarounds

Total Group provides mobile breathing-air trailer support for industrial turnarounds, shutdowns and maintenance projects. The air system, connections and air-quality verification need to match the project hazard assessment, equipment instructions and applicable requirements. Trailer placement and hose routing should be coordinated with the work areas and shutdown schedule.

For service information beyond a shutdown project, see Total Group’s air trailers service. This page focuses on turnaround scheduling, work-front coordination and project handovers.

Plan the air system around the work

An air trailer is part of a wider work plan. Before mobilization, the site team should confirm where supplied-air respirators or supplied-air suits will be used, how many outlets are needed, the hose routes, access for the trailer, the location of intakes and exhaust sources, and how the system will be protected from vehicle traffic, heat, impact, and unauthorized changes. The plan should also identify who controls the work area, who checks the equipment, who manages the respiratory protection program, and how workers will communicate if the air supply is interrupted.

Total Group’s role is to provide the trailer and agreed equipment support within the project scope. The owner, prime contractor, employer, or other designated site authority remains responsible for site-specific hazard assessment, work permits, isolation and energy-control decisions, worker instruction, and emergency arrangements unless the contract clearly assigns a defined task to Total Group. An air trailer does not replace a confined-space entry plan, atmospheric assessment, rescue plan, or the direction of a competent person.

Breathing-air quality and system records

CSA Z180.1:19 (R2025), Compressed breathing air and systems, is the current CSA Group listing consulted for Canadian breathing-air education. Its scope covers minimum requirements for the purity of compressed breathing air supplied at the service outlet and for systems that produce, store, and distribute that air. It also addresses design, construction, commissioning, calibration, testing, operation, and maintenance. The standard is a consensus standard; whether it is binding on a project depends on the applicable law, contract, employer program, or other requirement adopted by the authority having jurisdiction.

For a planned turnaround, the project file should identify the applicable air-quality standard, the system and component documentation, inspection and test records, connection layout, and any limits set by the respirator or suit manufacturer. Keep those records available to the person responsible for the respiratory protection program and to the site safety team. Do not treat a general statement that air is “clean” or “high purity” as a substitute for the project’s required verification.

Connection, routing, and pressure hazards

Compressed air can injure people through hose movement, unexpected disconnection, flying particles, noise, or uncontrolled release of pressure. For example, Alberta’s Occupational Health and Safety Code, Part 12, section 188, requires pressurized hose or piping and its connections to be restrained where failure or disconnection could injure workers. A project using Alberta as its site framework should apply that requirement to its trailer layout and confirm any additional requirements before work begins.

Hoses should be routed so they are protected from traffic, sharp edges, heat, dropped objects, and trip hazards. Couplings and connections should be compatible with the system and secured against unintended release. Workers should not alter the system, interchange components, or bypass a control unless the responsible site authority and the manufacturer’s instructions allow it.

Turnaround coordination and work boundaries

Air trailers often sit within a busy work area. Coordinate the trailer location and hose routes with the turnaround schedule, lifting plans, confined-space access, fire and gas monitoring, electrical or ignition-source controls, and emergency access. Alberta’s Code requires compressed or liquefied gas systems to be used, handled, stored, and transported in accordance with manufacturer specifications and protected from damage; it also addresses equipment and ignition controls in hazardous locations. See Alberta Occupational Health and Safety Code, Part 10, sections 165 and 171.

These Alberta provisions are an example of a provincial framework, not a universal Canadian rule. The site jurisdiction, employment jurisdiction, facility operator requirements, and contract documents should be confirmed before the work package is finalized. Requirements can differ across provinces, territories, federal undertakings, and client programs.

What to confirm before mobilization

  • Work areas, respirator or suit type, expected users, outlet locations, and hose lengths.
  • Trailer access, ground conditions, traffic protection, intake location, exhaust sources, and emergency access.
  • Applicable law, client requirements, respiratory protection program, manufacturer instructions, and the adopted breathing-air standard.
  • Air-quality test or verification records, inspection status, maintenance records, and connection compatibility.
  • Named contacts for site control, equipment checks, permit coordination, communication, and escalation if the air supply is interrupted.

Safe-use education

Compressed air should not be directed at a person or used to clean clothing or the body. The Canadian Centre for Occupational Health and Safety guidance on cleaning with compressed air explains the risks from pressure, airborne contaminants, noise, and combustible dust, and notes that restrictions differ by Canadian jurisdiction. This page describes planning considerations for an air trailer; it does not replace the site procedure, respirator program, training, or competent-person direction.

References

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