Shell and package fire tube boilers — the workhorse design for commercial and mid-range industrial steam in South Africa.
Supported Brands
Commercial
Industrial
Our Service
Troubleshooting Guide
Tap a fault for likely causes, what to check on site, and when to call us out.
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.
Service Areas
Fire tube boiler repair and maintenance in your area. Tap a suburb for local service details.
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