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Old 09-28-2009, 06:44 AM   #1
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stop valves


Threaded, sweat, or compression type stops to join stop valves to 1/2" copper pipe for toilet and sinks. Is one superior to the other or is it just a matter of personal preference? I've looked at prices and found very little difference on a small scale.

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Old 09-28-2009, 09:00 AM   #2
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stop valves


All work quite well but the one problem I have seen with compression type is that sometimes you cannot find the same brand if replacement is needed. This requires getting the ferrule off the pipe, which can be difficult. Threaded valves would make replacement easier and no torches in a small space. I use quality valves and sweat them on.

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Old 09-29-2009, 11:09 AM   #3
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stop valves


You state that you have 1/2" copper pipes already. Threaded fitting are out, unless you want to sweat an adapter to the copper pipe. Why not use the sweat stop valves? IF you are not that familiar with using a torch and necessary equipment for this, then the compression fitting may be for you. Dragon is correct though in that if you ever have to change the valve and cannot find that exact valve again, you may have to remove the ferrule, and that ain't easy. Good Luck, David
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Old 09-29-2009, 11:59 AM   #4
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stop valves


Compression are the easiest, especially for diy'ers. Sweating on a valve is probably the most durable, assuming you sweat the joint correctly. Threaded is kind of a waste of effort because you are still making a sweat joint (like in sweat joint shut off valves), but then you have the additional step of screwing on the valve. And with a threaded valve, you have to worry about getting the male adapted soldered on such that when you screw on the shut off valve, the outlet is pointed in the direction you want it, or close too it, without having to over tighten the joint.
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Old 09-29-2009, 09:23 PM   #5
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stop valves


you'll find that most plumbers will use compression these days. More than likely made by brass craft. Another side note on that is if you need to get the ferrel off just take a pair of channel locks and rock the ring back and forth and most of the time it will come off. Sorry another quick thing i just thought of is when it is time to replace the valve you either A have to sweat the valve off or cut the pipe making it shorter. hope it helps.
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Old 10-01-2009, 09:46 AM   #6
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stop valves


Thanks everyone

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