Might be something more to add to the window classes. Mike, Whenever possible they try to avoid window welds. Window Welds (Tube Patches, Window Patch, Flush Inserts). Note how tight the space is. That is likely a 2 1/2" dia. 
Doesn't a 7018 welded to ss have a tendency to crack, unlike ss to mild steel.
Follow Us on Facebook and LinkedIn for future updates and notifications. and also teach window welds. Isokinetic Sampling Nozzles (Probes) for measuring Liquids and Gases, including Water, Steam, and Natural Gas. I normally messaged him on Facebook as he was getting home from work lol, Stick Welding/Arc Welding - Shielded Metal Arc Welding, Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding, Mig and Flux Core - gas metal arc welding & flux cored arc welding, Stick Welding/Arc Welding - Shielded Metal Arc Welding, Welding Certification - Stick/Arc Welding, Tig Welding, Mig Welding Certification tests - Welding Tests of all kinds, Welding Projects - Welding project Ideas - Welding project plans, Welding Jobs - Industrial Welding Jobs - Pipe Welding Jobs - Tig Welding Jobs, Classifieds - Buy, Sell, Trade Used Welding Equipment, instructions how to enable JavaScript in your web browser, https://www.youtube.com/watch?v=lM-fdhnjlTg, http://www.weldingdata.com/WindowWelds.htm. GAustin: I have a ? These are SA 210 Core with a .100" thick layer of 300 series SS over the OD, These are sometimes used in Black Liquor Recovery boilers in paper mills. The window welds shown on my site are for tangent tube composite boiler tubes. Thanks Stu Bass. 
Either open root lo-hi, 5p, tig or backing strap. They enable to proceed to the simultaneous weld end preparations on the tubes of the boiler panel and to the excavation of the membrane walls. TES Group Inc. has repair procedures, welding procedures and experienced personnel to execute Window Weld repairs on boiler tubes where accessibility around the complete circumference of the tube is restricted. This page was generated at 05:21 AM.
Usually it's whatever the composition of the tube is what you weld it with.
9021 24th Street, Edmonton, AlbertaT6P 1L2, Tel: 587-760-3200 | Toll-Free: 877-857-3377. National Board of Boiler & Pressure Vessel Inspectors to register NB pressure equipment with the following ASME designator: (U, A, PP, S). ACSA (Alberta Construction Safety Association) - Membership. 
The only window welds we ever put in were on some radiant reheat tubes that had zero clearance to water wall tubes on one side. These are some of the easier tubes to weld in a boiler. Beveling - Pipe Facing - Orbital cutting - Counterboring - Surfacing - Boring, Tube, Valve, Flange, Elbow & Sheet Metal Manufacturers, BB Series - High speed pipe beveling machine. Personally I NEVER relit a used rod. Combustion boiler design. http://www.osti.gov/bridge/product.bosti_id=631170, If this is your first visit, be sure to
According to my sauces(BBQ and tomato) it is common here in AUS, both for repairs and (apparently) close outs where the final lot of tubes are welded in, cutting off access. In tangent tube furnaces with welded membrane, window welds are necessary. Two boilermakers buddy welding a reheat tube.
also. I'm not versed in power station or boiler stuff, so it's all just observation. Add your name to our mailing list and receive this valuable information by email. Plus few new power stations have been built here in recent years. The ones where you can get someone on both sides are usually better than the ones that have to be airbagged and welded one side at a time. Awesome. Than furnace design is not common. Warning: blocking cookies prevents the proper operation of the site.
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: 3.3.x, Stick Welding Tips, Certification tests, machines, projects. Also I notice a SS root then a 7018 fill and cover. Thanks for the information. Most boiler inspectors (Hartford especially) really frown on window welds. check out the.
E-Mail: contact@protemusa.com. The PROTEM GR-Series are OD clamping machines, specifically designed for boiler panels and waterwall cutout windows. They were used commonly in Black Liquor Recover boilers in paper mills.
(in Victoria anyway). Hated working on those damn radiant tubes. This type of repair is executed from one side of the boiler water walls typical of tangent tube construction. x .220 wall. This is the cap so they have a TIG root in, filled and capped w/ 8018 or 9018.
I'am never to old to learn. I'll post it on my other page, to get a feel for how common it actually is here. I know. Final report, Design and Modification of Heat Recovery Steam Generators for Cycling Operations, Design Guidelines for the Safe Operation of Steam Surface Condenser Turbine Bypass on Combined Cycle Power Plants, The Considerations for Reviewing the Effects of Power Uprates, Including Repowering, on Existing Steam Surface Condensers, Ep: the epo has been informed by wipo that ep was designated in this application, Wipo information: entry into national phase. Don't take this wrong please but I have done windows for almost 30 yrs. ver. All times are GMT-6. CO 80439 | USA On your site for this you said a composit tube, do you mean a stainless to a 90 series tube like transition tubes in the superheat area? I never encountered the need fir a window weld in a power boiler however my experience is only mine. Copyright TES Group Inc. All rights reserved. If you continue navigation, you accept the use of cookies.