ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Video door bell causing chime activation of coil
by gfretwell. 12/10/18 12:35 AM
Conduit fill Calculations
by gfretwell. 12/08/18 08:39 PM
Pull out fuse panel?
by Trumpy. 12/06/18 02:12 AM
Swimming Pool question
by HotLine1. 12/05/18 12:37 PM
Tingle off the water spigot
by rmiell. 11/30/18 01:03 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 10 guests, and 12 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
pvc coated rigid conduit #11350
07/10/02 08:03 PM
07/10/02 08:03 PM
M
master43  Offline OP
Junior Member
Joined: Jul 2002
Posts: 7
Clay Center, Kansas USA
Has anyone ever threaded this type of conduit. I am going to use it for an upcoming job at a waste water plant. Is it threaded any different than regular rigid conduit? Do you have to remove some of the coating to thread it or do you need any special tools?

Work Gear for Electricians and the Trades
Re: pvc coated rigid conduit #11351
07/10/02 09:40 PM
07/10/02 09:40 PM
T
The Watt Doctor  Offline
Member
Joined: Dec 2001
Posts: 435
Mont Belvieu, TX
Yes Master,
"As river flow in spring time, so shall many shaving flow from pvc coated pipe."
I've threaded much of the dreaded pvc coated rmc. You need to buy the proper threading dies if you are using a "port-a-pony". It is a little harder to get the threads started, but you'll get used to it. Over all, it isn't much more difficult to thread than regular rmc. Make sure that you buy some pads, lead, or something to put between the conduit and the "teeth" of the vise, or the teeth of the "power threader" (if that is what you are going to use to thread with) so the the pvc coating doesn't get damaged. If you do damage it, you need to get some of the liquid pvc that is used to repair it. It comes in a can just like pvc cement that is used to glue pvc conduit. Even the straps, payne hangers, unistrut, ect should be pvc coated.
Man, you're gonna have fun on this job.
"As the squealing of a stuck swine; so shall be the voice of the "green aprentice" who humpeth the 4" pvc rigid."

In the spirit of Grasshopper,
Doc


The Watt Doctor
Altura Cogen
Channelview, TX
Re: pvc coated rigid conduit #11352
07/10/02 10:07 PM
07/10/02 10:07 PM
M
master43  Offline OP
Junior Member
Joined: Jul 2002
Posts: 7
Clay Center, Kansas USA
Thanks for the witty and informing words. I have the pvc paint but was betting I would need special dies to thread for the portable threader. Will let you know how it turns out. Will make sure all my fittings and supports are pvc coated too.

Re: pvc coated rigid conduit #11353
07/10/02 11:03 PM
07/10/02 11:03 PM
G
George Corron  Offline
Member
Joined: May 2001
Posts: 717
Lorton, Va USA
OK, the threads are the same, you have to make certain that the throat fits OVER the conduit, or thou shall makest much damage. You cannot leave this damage unrepaired or geeez do you set up rust and corrosion very quickly. You'll get used to the smell and the noise [Linked Image]

Re: pvc coated rigid conduit #11354
07/11/02 03:49 AM
07/11/02 03:49 AM
J
joeh20  Offline
Member
Joined: Mar 2002
Posts: 95
Tullahoma, TN, 37388
You'll have fun, fun, fun, till daddy takes the threader away. It's all over the water plant. You've got to cover all the cut threads anywhere they enter a box. They make these little sleeves and put some thread sealer on all the connections that you can't get a sleeve on. These guys that ran it out here, were slow, real slow, but if you ever nick it they might not take it. So all the bending and threding is lost. Out here they didn't even try to patch a rip or scratch. they just had to redo it. The utility wouldn't accept any repairs due to an accident in the treading or bending. The joints at the boxes are the most critical the cut threads will corrode the fastest. Good luck, I hope you come out OK.


Lighting the way
Re: pvc coated rigid conduit #11355
07/11/02 07:49 AM
07/11/02 07:49 AM
J
JBD  Offline
Member
Joined: Jul 2001
Posts: 599
WI, USA
Permacote, a conduit manufacturer, has a support page showing installation and threading tips, http://www.permacote.com/support/index.html.

Re: pvc coated rigid conduit #11356
07/11/02 05:35 PM
07/11/02 05:35 PM
M
master43  Offline OP
Junior Member
Joined: Jul 2002
Posts: 7
Clay Center, Kansas USA
Thanks everyone for your posts. The web site was very helpful Jbd. Thanks again


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
MarkC10
MarkC10
CA, Inland Empire
Posts: 43
Joined: September 2013
Show All Member Profiles 
Top Posters(30 Days)
Popular Topics(Views)
252,125 Are you busy
189,137 Re: Forum
178,806 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.023s Queries: 14 (0.005s) Memory: 0.9852 MB (Peak: 1.1361 MB) Zlib enabled. Server Time: 2018-12-10 10:54:31 UTC