Thread Leak in Cast Iron to Bronze Valve

hr

Over tightening

can do funky things to a tapered, threaded joint. I'm working on a job now where the gas fitter tightened every joint down to where the threads don't even show!

I had to unscrew one to tie in my boiler gas. It backed out hard all the way to the last thread. You could see how the over wrenching actually pulled and distorted the threads, and no doubt expanded the fitting.

Brass, bronze is a fairly soft material, doesn't take much to over tighten and ruin a thread in a valve like that.

I suspect overtightening is a common installers practice, these days, to answer the poor quality of fittings, and hard to thread steel pipe on the market.

Some of that crap pipe will destroy a set of dies in a few threads. It has hard chunks, like small rocks, in the steel. Weird crap out there.

Maybe the ProPress copper/ gas fitting system is not such a bad move?

hot rod

To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Professional"

thp_7

Crap fittings

I like the jobs where the pipe is threaded till the face of the pipe cuts into the back of the 90* personally. Most people do not adjust the die to match the batch of fittings.

helpingothershelpthemselves_2

We call it thinwick .

Patchogue Phil_29

Yep

Only Patchogue in the world, I'll bet.