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Vacuum Leak Detection Services Leaking tubes can ruin an entire tube bundle. To avoid costly retubing these damaged tubes must be identified and plugged. Concos hand heldVacuum Leak Detector Gun provides a safe simple solution to identify leaking tubes in single compartment components with no turbine vacuum. All the Gun requires is compressed air. To locate leaking tubes a technician selects a tube to be tested and temporarily plugs the far end. Next the nozzle of theVacuum Leak Detector Gun is firmly placed into the open end of the tube forming an air tight seal. Powered by compressed air theVacuum Leak Detector Gun pulls a vacuum in the tube to a desired reading on the gauge. A steady reading on the gauge indicates that the tube does not leak. If the reading on the gauge drops you have pinpointed a leaking tube. For a complete VacuumTube Leak Detector Kit see page 28. HeliumTesting Services Trained in all aspects of tracer gas leak detection Conco technicians can use a Helium Mass Spectrometer System to inspect for condenser air in-leakage andor condenser tube leakage while the unit is running.When the unit is down they can test main generators and stator water systems for leakage. Unsurpassed in experience Conco technicians have mastered the art of leak detection. In addition to field services complete Helium Mass Spectrometer Systems and in-house training are available see pages 28 to 29. SF6 Testing Services SF6 has a detectible concentration of one part per ten billion versus heliums one part per million above background level.The ultra sensitive nature of this tracer gas makes it ideal for finding very small leaks within condenser tubes. Conco pioneered the use of SF6 for power generation leak detection in 1978 and is the only company to manufacture a continuous sampling SF6 analyzer Our Fluorotracer analyzer takes full advantage of the detectible concentration of SF6 and can also be used with our handheld SF6-Pak to perform air in-leakage surveys making it an extremely versatile system. For complete SF6 Systems and in-house training see pages 28 to 29. Established 1923 I 13