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Pex lines noisy
John G. Merritt
Member Posts: 140
Guys:
Got a job with all Pex tube throughout a very large home. The complaint is noise from expansion/contraction.
Will expansion joints at the boilers help with this?
The tubing is under floors, up inside walls, etc.
Never had this complaint before. Any ideas???
John
Got a job with all Pex tube throughout a very large home. The complaint is noise from expansion/contraction.
Will expansion joints at the boilers help with this?
The tubing is under floors, up inside walls, etc.
Never had this complaint before. Any ideas???
John
0
Comments
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Would you please tell us a little more about the system? Maybe some pictures.
Is it injection or mixing valves? what size pumps?
Jamie0 -
Noise
Do you have any re-set on the system ? The large temperature swings really make this a problem. Constant circ. Helps eliminate this also.
Years ago I had a problem with this and added expansion loops to the pex before the risers in the basemant, it helped take up Some of the expansion.
Pex-al-pex is the way to go.
Scott
To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"0 -
Pex noise
Years ago I had that problem on a clip-up system.Ended up being the clips I was using.Check to make sure they're compatible.Also check if the lines are bundled together to tight.
Good Luck
Brian0 -
"very large home" makes me think perhaps your loops are a lot longer than normal perhaps? That would explain why you might see it here and not on other jobs. For long runs in dry installations I usually try to break them up into two separate loops. A bit more work on the install but more expansion is taken up by more loops! 1.1"/100feet/10deg delta T adds up fast when you have 50 foot straight shots down a long joist bay.
As someone else noted, reset control can help this a lot if you don't already have it.0 -
expansion noise
i have that noise in my house from the 2 bays that have extruded aluminum plates. i don't have outdoor resetTo learn more about this professional, click here to visit their ad in Find A Contractor.0 -
expansion noise
i have that noise in my house from the 2 bays that have extruded aluminum plates. i don't have outdoor reset. bobTo learn more about this professional, click here to visit their ad in Find A Contractor.0 -
Pex noise
Guys:
This is a Pex system, using Mixing valves, and fairly tight bundles of 1" supply, runs are about 40 to 50 feet before they go up into the walls of this monster 2 million dollar house. Has a snow melt also, all (6) patios.
Don't know the Circulator sizes at this time.
Have not spent enough time to check everything out yet.
I just wondered if Expansion joints would help stop the noise. (Has outdoor reset also) Customer installed most of the tubing himself. (Nightmare) John0 -
pex noise
I discovered the hard way that barrier pex tubes when rubbing against each other can make a good deal of noise. If your tube is barrier style, this could have a lot to do with the problem.
Bill0
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