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  • Users: Lorus
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  1. Lorus

    Stell, Bronze, Brass, and a Newbie

    Howdy: I am a relatively new engineer, and my knowledge of some basic specification topics like pipe materials are just awful. If anybody could toss me over some help it would be greatly appreciated. 1. For black steel pipe, is a di-electric union required when using malleable iron, cast...
  2. Lorus

    dust collection duct sealing

    Thank you for the response KenRad. After checking them out, I dont think they will work for me, as they are rated as seal class c, which SMACNA indicates is not acceptable for any ducting operating at a positive or negative pressure greater than 2".
  3. Lorus

    dust collection duct sealing

    Howdy: I am looking for some advice as to what I should spec to seal the high-pressure spiral ducting used for dust collection systems. Max negative operating pressure will be 10" So far, I believe the best way is to use a slip coupling, riveted 3 or so times or ether side of center, with a...
  4. Lorus

    Converting a Steam Boiler to Hot Water

    So much great information here, thank you for the help. I was unaware of the boiler stamp indicating if a boiler could handle hot water as well as steam. I will be sure to check that out.
  5. Lorus

    Converting a Steam Boiler to Hot Water

    Well, apparently the water in the area is of a very poor quality, and even with a professionally recommended water treatment plan the last boiler corroded out in a short 11 years. It has been two years since this replacement, and the water situation has reportedly gotten worst, to the point...
  6. Lorus

    Converting a Steam Boiler to Hot Water

    Thank you for the reply. I apologize for being vague originally. The boiler in question is for a commercial heating system. I am comfortable with the exterior aspect of such a switch, as I can redesign the piping and tanks etc as required, however my knowledge on the internal workings of...
  7. Lorus

    Converting a Steam Boiler to Hot Water

    A contractor just submitted a proposal saying that he can convert our 2-year-old cast iron sectional steam boiler into a hot water heating boiler. Is this procedure possible and safe? Thank you for any help.

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