i like to give a 1/8 inch of play but thats just me also i know its more expensive but if you use compression couplings and connectors it can save time on threading if your runing alot of pipe
The quality of the conduit bodies is so poor........
I only use the Red Dot MALBs and they seem to thread on ok, but the inside edge at the cover is very sharp and you have to be careful not to get cut or damage the conductor insulation.Using some Red Dot stuff right now that is really irking me.
All conduit comes from the factory with the threading 3/4" down correct? So why when we cut and thread, we go 7/8" or more? Why not always thread 3/4" down?
the taper of the threads stops after 3/4 inch.
Yes, but in no case will the taper be any longer than the die that cut the thread, even if the threaded portion of the pipe is longer.Wouldn't that depend on the RMC size? Larger sized RMC has up to 2" of thread.
I feel you pain with conduit bodies not threading on all of the way.
These things are the bane of my existence, sometimes requiring that the RMC be shortened by half the thread length just to get these on to a point where the two conduit ends can touch. Or if we're using an adjustable threading machine we'll set the cut a little deeper than standard. I cannot understand why a rigid coupling will thread on all of the way but these pieces of junk won't. :rant:
Ya we had the same problem with erikson connectors.Left threads showing could not tighten all the way.Witch I'm Shure will lead to rusting more rapidly than if threads were in connector all the way
Where corrosion protection is necessary and the conduit is threaded in the field, the threads shall be coated with an approved electrically conductive, corrosion-resistant compound.
Should you always measure exactly to the center of couplings, or should you - a 1/8 or 16th inch? Also same for LB's etc. should you measure exactly to the bottom or minus a 1/8 or 16th inch? Thank you for your help.
The threading machines that we use for 2.5"-4" RMC taper the entire thread with a die that's only an inch long, this is even for threads that are close to 2" in length. That's because the die adjuster rides on an angled block which allow the entire thread to be cut as a taper.
The threading machines that we use for 2.5"-4" RMC taper the entire thread with a die that's only an inch long, this is even for threads that are close to 2" in length. That's because the die adjuster rides on an angled block which allow the entire thread to be cut as a taper.
But the tapering still stops at some point. You can't continue threading until you break through the inner wall of the pipe