Leak Sealing Service

Leak Sealing is an online leak repair service performed on operating pipelines, without shutting down the operation, so that the system can continue to operate avoiding expensive shutdown or losses. Alstern Technologies Singapore can help you prevent expensive shutdowns by providing safe, controlled onsite and online leak repairs for any leaking process.

Leaks are often associated with the following problems :
  • Leaks are expensive
  • High pressure & temperature leaks are associated with machines that cannot shut down
  • High pressure and temperature leaks are dangerous to the safety of workers
  • High pressure and temperature leaks are threatening to properties and environment
  • Leak repairs are expensive and most methods require system to be shut down
  • Leak repairs are temporary and sometimes ineffective
  • Current methods of leak repair are not able to withstand high temperature & pressure

OUR CAPABILITIES

[A] WATER PIPE LEAK DETECTION

  • Elbow leaks
  • Screwed, welded socket weld or seamless weld
  • 45° or 90° elbow leaks
  • Long or short-radius elbow leaks

[B] FLANGE LEAK REPAIR

  • Leaking, cracked or broken flanges
  • Hub-weld leaks, lap joint leaks
  • Out-of-round, mismatched, tapered gap leaks
  • Case joint leaks (on rotating equipment)
  • Valve bonnet leaks (oval, round or square)
  • Leaks from rough, pitted outside diameter
  • Leaking flanges of different diameter (with common center)
  • Line, valve-end, flat face flange leaks

[C] VALVE LEAK REPAIR

  • Leaks from cracked valve body
  • Leaking valve seats
  • Leaks from open ball valves
  • Valve stem, packing leaks
  • Valve-killing services available

[D] HEAT EXCHANGER LEAK REPAIR

  • Shell and tube exchanger leaks
  • Roll leaks
  • Flange leaks for any temperature or pressure
  • Leaks from flanges with large outside diameter
  • Leaks from flanges with wide gaps
  • Tube side leaks

[E] EXPANSION JOINT LEAK REPAIR

  • All bellow-type joint leaks
  • Effective for any temperature or pressure
  • Applicable on any joint with longitudinal movement
  • Any dock or loading arm leak
  • Ball joint leaks
  • Telescoping leaks

[F] PRESSURE VESSEL LEAK REPAIR

  • Column leaks
  • Tank leaks
  • Overturned tank car leaks
  • Heat exchanger shell leaks
  • Large diameter pipe leaks

[G] FURNACE LEAK REPAIR

  • Boiler roof, sidewall leaks
  • Foster-Wheeler reformer leaks
  • Other manufactured reformer leaks

[H] TOWER TRAY LEAK REPAIR

  • Chimney tray leaks
  • Valve tray leaks
  • Draw or trap tray leaks

[I] WELD & THREAD LEAK REPAIR

  • Threaded, socket weld leaks
  • Small stub-out, valve end, union or coupling leaks
  • Pump, agitator, compressor leaks


OUR ADVANTAGES

We provide leak sealing service with the following advantages :

  • Trained and experienced leak sealing specialist
  • Apply latest under-pressure leak sealing techniques
  • Meet all Process Safety Management requirements
  • Sealants available for any applications
  • Off-the-shelf leak sealing clamps for any standard applications
  • Quick custom-made repair clamps
Leak Sealing Process

Recent Photo Reference