Central Heating Pump - Acoustic Insulation

[rideforever]

The neighbours pump goes 24hrs a day and transfers a lot of noise through the wall.

Is there a product to wrap or cover the pump to avoid the noise ?

Although some noise is transferred directly from contact, most of it is a low -frequency which seems to be radiating from the machine, possibly an acoustic sleeve might help.

Any ideas at all would be good.

Cheers

 

[muggles]

http://www.bhl.co.uk/grundfos-insulation-cpl-cs100-130-180.html

 

[Agile]

Pumps mostly are cooled by the water they are pumping.

Nevertheless, it is not a good idea to cover the head.

The noise that bothers you is almost certainly conducted from pipework.

But the question you should be asking is why is it running 24/7 ?

Tony

 

[rideforever]

Thank for the information .... is there anything a plumber could do to improve the situation ? For instance there is a white fixing a few inches above the machine, could it be replaced with an acoustic fixing ?
Any other options ?

 

[shambolic]

Move house?

 

[Scarum]

Anti-vibration pipe clips.

Change pump speed.

Change the pump.

 

[rideforever]

How about replumbing the pump so it is either futher from the wall - more space for acoustic insulation around it, or moving the pump downstairs next to their boiler (yes lots of re-plumbing) and then insulating the cupboard down there - more easily done then up in this area with wall obstructions.

 

[hard-work]

Anti-vibration pipe clips will prevent vibration through the walls. The pipes are gripped with rubber.
Also have small sections of plastic pipe either side of the pump to reduce vibration through the pipes.

Also it may be water noises rather than the `pump`, which I am sure there is looking at the picture. This can be overcome be making the piping around the pump and zone valves smoother with bends rather than elbows. There are far too many tees around that pump.

I would:
1. Redo the piping to reduce the elbows.
2. Fit Anti-vibration pipe clips either side of the pump.
3. Use plastic pipe and fitting either side of the pump, that includes Tees, etc.

As others have stated, if it is running 24/7 something is wrong. Is the speed too high? Maybe he needs an auto speed pump as well, as these lower the speed when the thermostat valves start to close up.
He is paying to run this pump all this time. He needs to get this aspect sorted ASAP.

anti-vibration clips.

 

[hard-work]

This is poor pipework design. There is one tee and and two elbows all with a few inches of each other on the inlet side (bottom). I can't see the top.

 

[Agile]

It needs to be carefully felt to see which parts of the pipe are vibrating and also if the rear of the pump is touching the wall.

But why is it running 24/7 ?


By coincidence I have got to go to an installation where using hot water for washing up at 2 am causes pipes to bang and disturb downstairs neighbours.

My first question was "why do you do washing up at 2 am?"

 

[rideforever]

An idea I just had is to create an acoustic box and mount it on the wall on the left, it is quite a deep cubpoard with large water tanks, then mount the pump in the box and connect it with flexible hose.
Then the machine is not moved too far away, has no rigid pipe connectors and mounted in an anti vibration box.
Any problems with this idea ?
In fact the box and pump could be situation roughly where the pump is currently, as long as the pipe to the right is moved outwards for space.
?

 

[oldbuffer]

1. The internal diameter of a 22mm flexible hose is 13 to 15mm, so a big restriction on flow.
2. I doubt any flexible hoses are rated for continuous temperatures of around 80 degrees Celsius.
3. When the flexible hose get a hole in it you'll have a nicely pumped leak.

The answers already given by earlier responders are the right answers.

 

[rideforever]

1. The internal diameter of a 22mm flexible hose is 13 to 15mm, so a big restriction on flow.
2. I doubt any flexible hoses are rated for continuous temperatures of around 80 degrees Celsius.
3. When the flexible hose get a hole in it you'll have a nicely pumped leak.

The answers already given by earlier responders are the right answers.

Are plastic pipes possible as connectors ? Are they solid enough ?

 

[oldbuffer]

Yes - see post 8 from hard-work above.

 

[rideforever]

thanks