(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 6 of 6

Thread: A question for the trades pro

  1. #1
    DIY Senior Member chefwong's Avatar
    Join Date
    Jun 2006
    Location
    District of Columbia
    Posts
    710

    Default A question for the trades pro

    Given the 2 options, if you need to run external conduit, would you choose steel anyday over PVC ?
    Steel has always been Code and King out here in NYC. Current code afaik allows PVC for structures 3 stories and less.

    Love to hear the pros/cons.
    Pro's I suppose is that it's a solvent weld, and you can heat it up and *bend* the radius very easily.
    I wouldn't say it looks cheap, but after seeing steel pipe for so long, when I do see it + the lettermarking on the plastic, it does sorta look cheap.
    Last edited by chefwong; 09-13-2012 at 07:14 PM.

  2. #2
    Electrical Contractor/Instructor jwelectric's Avatar
    Join Date
    Jun 2007
    Location
    North Carolina
    Posts
    2,523

    Default

    Quote Originally Posted by chefwong View Post
    Given the 2 options, if you need to run external conduit, would you choose steel anyday over PVC ?
    There would be many factors in choosing the raceway method
    Quote Originally Posted by chefwong View Post
    Steel has always been Code and King out here in NYC. Current code afaik allows PVC for structures 3 stories and less.
    That must be some sort of Yankee thing as PVC can be installed on any high rise building.

    Quote Originally Posted by chefwong View Post
    Love to hear the pros/cons.
    Don’t know any pros or cons
    Quote Originally Posted by chefwong View Post
    Pro's I suppose is that it's a solvent weld, and you can heat it up and *bend* the radius very easily.
    Never found anything easy when bending PVC unless you are one of those who don’t care how it looks
    Quote Originally Posted by chefwong View Post
    I wouldn't say it looks cheap, but after seeing steel pipe for so long, when I do see it + the lettermarking on the plastic, it does sorta look cheap.
    Beauty is in the eye of the beholder.

  3. #3
    Plumber jimbo's Avatar
    Join Date
    Aug 2004
    Location
    San Diego
    Posts
    9,001

    Default

    JW...is it even acceptable to melt and bend PVC conduit??

  4. #4
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,653

    Default

    quote; is it even acceptable to melt and bend PVC conduit??

    If it were not, then a lot of companies are making "bending ovens" for nothing. Even though PVC conduit is marked "sunlight resistant" it will still become brittle if not painted to resist UV deterioration. Obviously, exposed PVC is much more easily damaged than metal conduit, and don't chain your Doberman to it. The "three story rule" also applies to plumbing PVC. It has to do with the flamablitly and toxic odors of PVC in a fire. They assume that the fumes will be manageable up to that point but beyond that they could be life threatening because of escape times and routes.
    Licensed residential and commercial plumber

  5. #5
    Electrical Contractor/Instructor jwelectric's Avatar
    Join Date
    Jun 2007
    Location
    North Carolina
    Posts
    2,523

    Default

    No we don’t melt it we just heat it until it is pliable and then bend it keeping the bending radios outlined in Chapter 9 of the NEC.

    What makes it so hard is should there be a need to make two bends keeping the pipe straight can be a chore.

  6. #6
    IBEW Electrician big2bird's Avatar
    Join Date
    Sep 2012
    Location
    Anaheim, Ca.
    Posts
    141

    Default

    Steel would provide better physical protection. It also is heavier, costlier, and can rust. Not so good in salt water areas also.
    PVC is cheaper, needs extra strapping, decays when exposed to UV, and is easily damaged. It also emits toxic smoke when burned.
    A clear question of your application would make the choice easier to suggest.

Similar Threads

  1. In the Trades Forum
    By Terry in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 30
    Last Post: 10-25-2013, 11:11 PM
  2. Quick question on glass framed pivoting shower door hardware question
    By watson524 in forum Shower & bathtub Forum & Blog
    Replies: 1
    Last Post: 02-09-2011, 05:38 PM
  3. Question about Outlets and terminals/push-in(real question, not a troll)
    By cswilson in forum Electrical Forum discussion & Blog
    Replies: 34
    Last Post: 12-01-2010, 03:56 PM
  4. Route question,Light question
    By solutions in forum Electrical Forum discussion & Blog
    Replies: 11
    Last Post: 04-01-2008, 08:49 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •