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Thread: What is this?
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02-27-2015, 05:45 AM #1
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What is this?
Can somebody tell me what this might be. I've never seen this before. The copper fitting in front of the thermal expansion valve.phphWkTORAM.jpgphpPmT5USAM.jpg
Thanks
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02-27-2015, 07:21 AM #2
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Re: What is this?
If it was installed vertically it would be to prevent/lessen water hammer. Air trapped in the top of the tube acts as a cushion. As is, they may have put it in for some future appliance.
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02-27-2015, 07:37 AM #3
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Re: What is this?
It's a water hammer arrestor. BTW the air chamber is sealed so they work even when installed at any angle. Also, the device it's connected to is (most likely) a Pressure Relief Valve.
Originally Posted by Wayne Edwards
The need for a hammer arrestor is because the PRV can close suddenly, causing water hammer.
I can't say if it's connected properly.
' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.
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