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jerry1967 10-18-2007 11:00 AM

temperature/pressure relief valve
 
My temperaute/ pressure relief valve comes out at a 45* angle. How do I get it vertical?

Do I use pipe thread compound or teflon tape on the thread of the relief valve?

Mike Swearingen 10-18-2007 12:06 PM

T&P valves are set for 90 on the top of the heater pointing to the side or at the top on the side pointing straight down.
How did you get one at 45? The only way that that could happen that I can think of is that something hit it in transport and cocked the T&P valve and the female threaded connection (welded to the tank) that it is tightened into.
If that's the case, you might need to exchange the heater if you can, or make up the 45 to a 90 with 3/4" brass or copper drain fittings coming from the T&P valve.
The only valve with a 45 on a heater is the drain valve at the bottom of the heater.
Mike

sz8 10-18-2007 05:31 PM

I think what he meant was the T&P valve is over turned or under turned so that
it is not pointing straight down.

I bought a new heater and had the same problem. I just turned it a bit to make
it pointing straight down.

Quote:

Originally Posted by Mike Swearingen (Post 68816)
T&P valves are set for 90 on the top of the heater pointing to the side or at the top on the side pointing straight down.
How did you get one at 45? The only way that that could happen that I can think of is that something hit it in transport and cocked the T&P valve and the female threaded connection (welded to the tank) that it is tightened into.
If that's the case, you might need to exchange the heater if you can, or make up the 45 to a 90 with 3/4" brass or copper drain fittings coming from the T&P valve.
The only valve with a 45 on a heater is the drain valve at the bottom of the heater.
Mike


jerry1967 10-18-2007 06:35 PM

Quote:

Originally Posted by sz8 (Post 68859)
I think what he meant was the T&P valve is over turned or under turned so that
it is not pointing straight down.

I bought a new heater and had the same problem. I just turned it a bit to make
it pointing straight down.

you are right it is over turned.If I turn it back I get a water leak, so I have to keep it where it is but it is at 45*. I quess I will put a 90* on it so it will at least point toward a wall in case it should be activated.

Marlin 10-18-2007 07:40 PM

Can you just make it up another 3/4 turn? At the very least a 1/4 turn to have it sideways?

scorrpio 10-18-2007 11:33 PM

You can unscrew the valve completely, reapply teflon tape, and then screw it back on, getting it straight down this time.

Or, you can do this: you need to attach a pipe to this valve, end of which should be about 6" from floor. You can put a 45 elbow in that pipe after a short section so most of the pipe ends up vertical.

sz8 10-19-2007 09:42 AM

I am bit suprised that it would leak if turning back only 45 degree. In my case,
it was over turned by 5 degree and I simply loosed it by that amount. No leaks.

Believe it or not, when I adjusted it, it is quite loose (not as tight as I thought). I
assume it would be also ok to tighten it by one turn.

Did you try to tighten it? It is not big deal since if you can not tighten it, you can
always take it out and put tape + dope and redo it. I feel it is quite easy to get
good seal with tape + dope as some ones suggested in this forum. I've done around
6-7 thread with that way and non of them leaks.

Good luck.


Quote:

Originally Posted by jerry1967 (Post 68865)
you are right it is over turned.If I turn it back I get a water leak, so I have to keep it where it is but it is at 45*. I quess I will put a 90* on it so it will at least point toward a wall in case it should be activated.


Mike Swearingen 10-19-2007 11:19 AM

I agree with removing and retaping the T&P valve to tighten it up pointing straight down as the simplest solution. I misunderstood your first post.
Mike

jerry1967 10-19-2007 04:03 PM

thank you everybody- I will try and retape it.

Alan 10-20-2007 04:27 PM

Tape, not pipe dope.

I don't know about OTHER states, but oregon does not recognize pipe dope/thread compound as a thread sealant. (some do use it in certain service situations, but an inspector will not let that fly here).

scorrpio 10-22-2007 07:34 AM

Some states, it's the reverse. I tend to use both on gas pipes (dope on top of tape), but for water, just the heavy tape.


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