Heat Exchanger / Bundle Cleaning SWMS
SWMS template for heat exchanger / bundle cleaning. Covers Bundle pull, hydroblast, chemical clean. 8-state AU coverage, CIH-reviewed editable DOCX, available as an instant download.
SWMS variants reference your state’s WHS legislation. Instant download after payment.
Heat exchanger and tube bundle cleaning is a high-risk maintenance activity routinely performed during refinery, petrochemical, power generation and process plant shutdowns across Australia. The work combines bundle extraction using mechanical pullers or cranes, ultra-high-pressure (UHP) hydroblasting up to and beyond 40,000 psi, and the use of acidic or alkaline chemical cleaning agents — each presenting catastrophic injury potential including amputation, fluid injection injury, chemical burns and crushing fatalities. Under WHS Regulation 2011 r291 and the model WHS Regulations adopted across all states and territories, this scope of work meets multiple High Risk Construction Work (HRCW) triggers and the PCBU must prepare, communicate and enforce a documented Safe Work Method Statement before any work commences. This CIH-reviewed SWMS template provides the hazard register, hierarchy of control framework, sign-on architecture and code-of-practice citations required to satisfy regulator inspection across all eight Australian jurisdictions.
Hazards identified
7 hazards covered, sorted by priority.
Catastrophic tissue destruction, sepsis, amputation or fatality from sub-dermal water and debris penetration requiring emergency surgical debridement
Fatal crush or limb amputation from suspended bundle swing, puller slip or unplanned load release during horizontal extraction
Chemical burns, respiratory tract injury, corneal damage and systemic toxicity from skin contact, splash or aerosol inhalation
Asphyxiation, toxic atmosphere exposure or engulfment from residual hydrocarbons, H2S pockets or nitrogen purge displacement
Acute lumbar disc injury, rotator cuff tears and cumulative musculoskeletal disorders from repetitive lifting and lance reaction force
Fractures, lacerations and secondary chemical exposure from falls onto contaminated grating, hoses or bund containment edges
Permanent noise-induced hearing loss and tinnitus from sustained pump operation often exceeding 105 dB(A) at the work face
Control measures
Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.
- 1Elimination — Where feasible, replace UHP hydroblasting with automated robotic tube lancing systems that remove workers from the jet stream and reaction-force zone entirely.
- 2Elimination — Schedule bundle cleaning during full plant shutdown with positive isolation, blinding and drain-down to eliminate residual process fluid and stored pressure energy.
- 3Substitution — Substitute concentrated mineral acids with inhibited citric or organic chelant cleaners where metallurgy permits, reducing burn severity and fume generation per SDS Section 7.
- 4Substitution — Use lower-pressure (<10,000 psi) ultra-high flow cleaning where deposit profile allows, reducing fluid injection severity classification under AS 4233.1.
- 5Engineering — Install rigid lance shotgun supports, foot-control dump guns, anti-withdrawal devices and hose whip restraints compliant with WJTA-IMCA recommended practices.
- 6Engineering — Erect exclusion zone barricades at 20 m minimum radius with high-visibility signage and interlock the hydroblast pump dead-man to the operator station only.
- 7Administrative — Conduct documented pre-start SWMS sign-on, JSA toolbox and hydroblast operator competency verification against AS 4233.1 and the WJTA Hydroblasting Manual.
- 8Administrative — Implement two-way radio communication, spotter protocols and stop-work authority for all crew with documented permit-to-work and confined space entry permits.
- 9PPE — Issue UHP-rated jet-resistant suits, kevlar metatarsal boots, faceshields with chemical splash protection, Class 5 hearing protection and chemical-resistant gauntlets matched to SDS.
- 10PPE — Provide air-supplied respirators or P2/AB-E filtration for chemical cleans, with on-site emergency eyewash, safety showers and decontamination station within 10 seconds travel.
Applicable Codes of Practice
Mandates operator competency, equipment inspection, exclusion zones and dump-gun controls for all jetting above 70 MPa — directly governs hydroblast task execution.
Sets the risk management duty for acid and caustic cleaning chemicals including SDS access, exposure standards, bunding and emergency response provisions.
Governs permit, atmospheric testing, standby person and rescue arrangements for entry into exchanger shells, channel heads and bundle washing pits.
Requires risk assessment and control of lance reaction force, hose dragging and bundle component handling under WHS Regulation r60 duties.
High-Risk Construction Work triggered
Hydroblasting at pressures exceeding 10,000 psi releases stored fluid energy capable of severing tissue, triggering the pressurised fluid criterion under Schedule 1.
Bundle chemical cleans use scheduled corrosives, inhibitors and solvents classified hazardous under the GHS, requiring SWMS documentation per Schedule 1.
Inspection, lancing and decontamination inside exchanger shells and channel heads meets the confined space definition under AS 2865 and Schedule 1 criteria.
PCBU must prepare the SWMS in consultation with affected workers, retain it for the duration of the work plus two years after a notifiable incident, and produce it on regulator request — penalties are substantial and indexed annually under the prevailing WHS schedule.
Who this is for
- →Mechanical services contractors performing turnaround shutdown maintenance
- →Industrial cleaning crews on refinery and petrochemical sites
- →Power station boiler and condenser maintenance teams
- →HSE advisors managing process plant shutdown contractor packages
What you receive
- ✓Editable DOCX template — Microsoft Word compatible
- ✓State-specific WHS legislation schedule (NSW/VIC/QLD/SA/WA/TAS/NT/ACT)
- ✓Hazard register with risk ratings + hierarchy-of-control mapping
- ✓Worker sign-on register, pre-start checklist, and incident escalation flow
Worked example
During a scheduled five-day shutdown at a regional alumina refinery, the mechanical cleaning supervisor pulls the Heat Exchanger / Bundle Cleaning SWMS from the site document register at the 0530 pre-start brief. With the three-person hydroblast crew assembled at the cleaning pad, the supervisor walks each section: the bundle for E-204A has already been extracted overnight using the hydraulic puller, so the rigging and crush hazard controls are now closed out and initialled. Today's task is shotgun lancing at 20,000 psi followed by a citric acid circulation clean. The supervisor confirms the 20-metre exclusion barricade is rigged, the dump-gun foot pedal has been function-tested, and the air-supplied respirator bottles for the chemical phase are charged. Each crew member signs onto the SWMS hazard register, with the new dogman specifically briefed on the fluid injection hazard and the location of the nearest safety shower. Mid-morning, wind direction shifts and aerosol drift begins reaching the laydown area — the supervisor invokes the stop-work clause noted in the administrative controls, repositions the wind sock monitoring point, and adds a temporary downwind barricade. The SWMS is annotated with the change, re-signed by the crew, and work resumes. The amended document is filed at shift end and retained in the contractor HSE pack for regulator inspection.
Related legislation
- WHS Act 2011 (model)
- WHS Regulation 2025
- Construction Work CoP