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Boiler, stoker and related after-sales services and spares

after-sales services and spares

To keep your investment performing with maximum uptime, we offer a range of Original Equipment Manufacturer (OEM) spares for all John Thompson boilers, stokers and ancillary equipment. We also produce cast iron spares in our own foundry in Bellville South, Cape Town, so you are assured of availability ex-stock.

After-sales services include:

Maintenance / Surveys

  • Complete system evaluations
  • Mechanical equipment review and evaluation
  • Equipment refurbishing and rebuilding
  • Service / Maintenance Contracts
  • Spares supply and fitment


  • Conversion of Pulse Jet Bag Filters from dirty side to  clean side entry
  • Conversion of Electrostatic Precipiitators to Pulse Jet collectors


  • Media upgrades
  • Inlet conversions
  • Improved controls
  • Monitoring devices
  • Media changeouts Tubesheet replacements

Spare parts

Enquire about our full line-up of parts for all industrial air filtration products – from gaskets and hinges, to timers, differential pressure gauges and major components.

Typical spares available

  • Filter bags / cages / inserts
  • Controller assemblies/diaphragms
  • Pulse valves and repair kits
  • Solenoid valves and repair kits
  • Differential pressure gauges
  • Rotary airlocks and replacement vanes
  • Fans and motors
  • Access doors
  • Explosion vents
  • Atomizing disc Impellers
  • Screw conveyors