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Re: NDT for Leaking Expansion Bellows

Posted by: Simon , E-mail: Address, on September 06, 2008 at 06:35 :

In Reply to: NDT for Leaking Expansion Bellows posted by : Qaisar Abbas Profile , E-mail: Address, on September 06, 2008 at 05:49 :

----------- Start Original Message -----------: Dear All,: We have around 20 expansion bellows of 36" dia on hot feed gas (methane+steam) operation at about 800 F verses 85 F ambiant temperature. We are suspecting some of them leaking in the field. : For this, is ther any any NDT pratice in industires / experience to exactly detect the leaking bellows without installing scaffolding near to them and in running condition of plant?: Regards: Qaisar: qabbas@engro.com------------ End Original Message ------------You can use Ultrasonic Leak Detectors to find the leaks from a distance of 50 ft or so and pin point them. You can check with Sonatest for Soundscan System.The other option will be IR Thermography. Depends on your criticality of inspection, you can choose any one of the above methodsSimon

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