Mad Plumber
Mad Skills
Sir:
All literature that I've read says to use Drive-Couplings when setting a Sand-Point. A Drive-Coupling has a Straight-Thread, (NPSC) or the likes. It states that the 2" 11 1/2 thread, (NPT) is to be screwed into the Drive-Coupling to the point of the 2 sections of pipe Butting up against one another, thereby not putting any pressure on the threads while driving, but rather the pressure would be against pipe-end
on pipe-end. My problem: I tried doing so. The NPT thread will not Butt within the Drive-Coupling
no matter how much power applied.
The only way that I could accomplish Butting the 2 sections together, within a Drive-
Coupling, was to Thread each section a full 2" of threads.
My question to you, Please!
What would you suggest that I do here? Is it advisable to do the 2" of thread onto each section of pipe?
Thaank you,
T Engelhard
All literature that I've read says to use Drive-Couplings when setting a Sand-Point. A Drive-Coupling has a Straight-Thread, (NPSC) or the likes. It states that the 2" 11 1/2 thread, (NPT) is to be screwed into the Drive-Coupling to the point of the 2 sections of pipe Butting up against one another, thereby not putting any pressure on the threads while driving, but rather the pressure would be against pipe-end
on pipe-end. My problem: I tried doing so. The NPT thread will not Butt within the Drive-Coupling
no matter how much power applied.
The only way that I could accomplish Butting the 2 sections together, within a Drive-
Coupling, was to Thread each section a full 2" of threads.
My question to you, Please!
What would you suggest that I do here? Is it advisable to do the 2" of thread onto each section of pipe?
Thaank you,
T Engelhard