Bahx Repair Type: Conference Presentation Log in to post commentsConference Type: AIChE Spring Meeting and Global Congress on Process Safety Presentation Date: March 14, 2011 Duration: 30 minutes Skill Level: Intermediate PDHs: 0.50 Share This Post: 1 Comment Abstract: Repair of brazed aluminum heat exchangers requires specialized knowledge. While repairs can be done successfully, improper procedures can result in irreversible damage to the vessel. The paper will describe weld and repair procedures for external as well as internal leaks. External leaks can typically be repaired by grinding the defect area and welding the crack. Internal repairs require the removal of headers or header sections, locating the leaking layer and the seal welding of this layer or layers. The overall exchanger profile needs to be reviewed at this point to see if additional layers under adjoining streams will need layers blocked in order to maintain the balance of the heat exchanger. Preview Presentation: Presenter(s): Sam Willard Once the content has been viewed and you have attested to it, you will be able to download and print a certificate for PDH credits. If you have already viewed this content, please click here to login. Checkout Checkout Do you already own this? Log In for instructions on accessing this content. Pricing Individuals AIChE Member Credits 0.5 AIChE Members $15.00 AIChE Graduate Student Members Free AIChE Undergraduate Student Members Free Non-Members $25.00 Language: English Comments Sound is out at 17:15 mark Submitted by David Lewis on February 18, 2019 - 5:56pm The sound works on the first half of the video, but not the 2nd half, which really diminishes the value of the content that I purchased.