PEX valves in sizes other than 1/2"
#8
  Re: (...)
Running some 3/4" PEX for a new installation. All of the shut off valves (that you stub out to and connect to your sink / toilet) that I am finding are all 1/2".

Seeing as how common the 3/4" tube size is, are there no 3/4" barb valves? I find it silly to have to swedge down to 1/2" tube for the last foot. Wondering what other PEX users have done.
Shame on the men who can court exemption from present trouble and expense at the price of their own posterity's liberty! - Samuel Adams
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#9
  Re: PEX valves in sizes other than 1/2" by Mandrake (Running some 3/4" PE...)
they seem common

http://www.pexuniverse.com/pex-valves?gc...aQodXA8LGg
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#10
  Re: Re: PEX valves in sizes other than 1/2" by Splinter Puller (they seem common[br]...)
I think he is looking for a 3/4" stop valve. I have never seen them.

I have always used a 3/4 Pex to 1/2 FIP elbow like this


Use a chrome nipple through the wall and a stop valve. It never occurred to me to look for a 3/4 stop valve.

Twinn
Will post for food.
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#11
  Re: Re: PEX valves in sizes other than 1/2" by theeviltwinn (I think he is lookin...)
Same here never though of doing everything in 3/4 and needing 3/4 stop valves. A little overkill for residential. I see most guys plumbing the hot side with 3/8 now for faucets. Gets the hot water there quicker by wasting less water.
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#12
  Re: PEX valves in sizes other than 1/2" by Mandrake (Running some 3/4" PE...)
Very few fixtures have flow rates higher than a 1/2" branch line or home run can deliver. Why run 3/4?
Blackhat
Common decency is as rare as common sense. I figure there was only a finite amount of both made and its getting shared out among too many folks.


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#13
  Re: Re: PEX valves in sizes other than 1/2" by blackhat (Very few fixtures ha...)
I'd run 1" to a soaker tub if I could, but otherwise, I see no need for 3/4 unless not doing home runs.

I doubt I could get a faucet to flow enough for 1" or even 3/4".

You can get a 3/4" copper stub and then reduce to 1/2" in copper prior to the valve. It might be the path of least resistance.
Rocket Science is more fun when you actually have rockets. 

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#14
  Re: Re: PEX valves in sizes other than 1/2" by Mr_Mike (I'd run 1" to a soak...)
It sounds like the 3/4 pex - 1/2 FIP drop ear is the way to go.

I'm plumbing the new shop and it sits far off from the water main. 1/2" line would probably work, but I won't be connecting water for a year or two. I'm trying to get in everything I need to cover the walls now. By the time I'd find a flow problem, it would be way too late to change anything. Spending and additional $60 now is a cheap insurance compared to dealing with problems later.
Shame on the men who can court exemption from present trouble and expense at the price of their own posterity's liberty! - Samuel Adams
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