Fire tube boiler repair, maintenance and annual inspection in Modderfontein and the wider Johannesburg area. Same-day response for commercial and industrial plant across Gauteng.
Local Service
Our certified technicians service fire tube boilers across Modderfontein and the Johannesburg region — from hospital sterilising and laundry steam to food and beverage process steam. We carry common burner spares, safety valves and controls for major brands including Cyclotherm, John Thompson, Bosch, Cochran. Annual inspection, combustion analysis, tube cleaning and emergency breakdown response are all available in Modderfontein.
Brands
Our Service
Troubleshooting
Likely causes
What to check
Look for weeping or salt trails at the tubesheet during a cold inspection.
When to call us
Any confirmed leak needs certified expansion or re-welding before the next hydraulic test.
Likely causes
What to check
Blow down the gauge glass and probe chambers, then check boiler water TDS against the treatment specification.
When to call us
Immediately — low water is the most dangerous fault on a fire tube boiler.
Likely causes
What to check
Trend flue gas temperature against steam output; a rise means you are losing efficiency and paying for it in fuel.
When to call us
When the rise exceeds about 20 °C over the clean baseline.
FAQ
In a fire tube boiler the combustion gases pass through tubes surrounded by water; in a water tube boiler water passes through tubes surrounded by hot gas. Fire tube designs are cheaper and simpler up to about 20 MW and 20 bar; water tube designs handle higher pressures and faster load swings.
Pressure vessels in South Africa fall under the Pressure Equipment Regulations, with periodic inspection by an Approved Inspection Authority. We prepare the boiler, attend the inspection and complete any resulting repairs.
Yes. We do thickness testing, remove and replace tubes with certified welders, and perform the hydraulic test and recommissioning without removing the shell.
Nearby Areas
Send nameplate photos and we quote within 24 hours.
Get a Free QuoteCall 067 603 9306