Steam systems · Priority

Steam Boiler Pressure Problems

Pressure swings, safety valve lifting, or pressure that cannot be held under load.

This fault is normally treated as priority work because the plant is still running but is damaging itself or wasting energy while it does.

Gauteng municipal water is moderately hard, so scale on elements and heat exchangers is the single most common cause of falling performance.

069 268 0988 info@reyds.co.za

Equipment: Steam systems
Priority: Priority
Call: 069 268 0988

What we find

Likely causes

Pressure switch out of calibration
Modulating burner not staging correctly
Carryover from high TDS water
Undersized steam header for demand
Failed PRV downstream

Test sequence

How we diagnose it

Pressure switch calibration check
Burner modulation observation
Water TDS and alkalinity testing
PRV station inspection

Repair route

Services that resolve this fault

Steam Boiler Repairs

Fire-tube and coil steam boiler repairs, level controls and burners.

Steam Boiler Maintenance

Planned steam plant servicing, blowdown routines and water chemistry.

Steam System Maintenance

Trap surveys, header repairs and condensate recovery optimisation.

Coverage

Attendance by area

Also check

Related faults

Boiler Not Producing Steam

The boiler fires but pressure will not build to the operating setpoint.

Boiler Low Water Alarm

The low water cut-out trips and stops the boiler even when the tank has water.

Steam Trap Failure

Traps blow live steam through, or run cold with condensate backing up.

Water Hammer in Steam Lines

Loud banging in steam mains, sometimes with pipework movement.

FAQs

Frequently asked questions

What causes steam boiler pressure problems?

The usual causes are pressure switch out of calibration, modulating burner not staging correctly, carryover from high tds water, undersized steam header for demand. Which one it is can only be confirmed by measurement, not by symptom alone.

How do you diagnose it?

Pressure switch calibration check; Burner modulation observation; Water TDS and alkalinity testing; PRV station inspection. The readings are recorded so the repair decision is based on data.

Can I keep using the system in the meantime?

Usually yes, for a short period, but efficiency and component life are both being lost while the fault persists.

Where do you attend this fault?

Across Johannesburg, Ekurhuleni, West Rand, Midrand, Centurion and Pretoria.

Get steam boiler pressure problems diagnosed

Priority attendance across Johannesburg, Ekurhuleni, West Rand, Midrand, Centurion and Pretoria.

069 268 0988 Request a quote