Vertical Steam Riser constant rattle

clammy

Maybe there is a drip for that riser that has been removed or is clogged and not permitting condensate to drain creating water hammer or has insulation been removed off of some steam piping creating vacume spots on the riser .Walk around where the riser takes off from be nosey and see what you see peace and good luck clammy

bb_6

Non stop rattling in vertical steam riser. Normal?

Can anyone please help me find information (diagrams, links, books, experts) about the make up of a one pipe steam vertical steam riser? I believe to be a hollow 4" pipe that just is a conduit for the steam.

I have a constant loud rattle (not hammer, rattling) while steam is in the pipe(which lasts for 1-2.5 hour periods). I believe that the vertical steam riser (which possibly feeds the radiators 5-6 feet away via piping under the flooring) is not supposed to make a noise.

I can fully understand a radiator and all the noises associated with that (the little release valve that lets steam out on occasion, or condensate in the piping causing hammer) but not a vertical 4" pipe that just carries steam. Are these assumptions incorrect?

I'm trying to build a case to convince the apt management office that this is not normal. Due to the volume and non stop nature it is wearing on my nerves since that is my bedroom and office where I spend most of the day.

So if anyone can help me I'd greatly appreciate it.
I have a BSE and MSE in EE so I'm also technically versed.
thanks
bill

bb_6

Constant rattling, NOT HAMMER

I'm not talking about a hammer sound. this is a constant rattling like a baby rattle or morachas constantly making noise.

It is a new pipe in my apartment and the two below since it went thru a resconstruction. There is no insulation, it is a bare pipe to allow heat to get to the apartment.

shawn_11

I have a similar issue. My current hypothesis is that since the riser is not insulated it is going through almost constant temperature changes: hot - room temp - hot - room temp, etc. Subsequently the pipe is always expanding and contracting. If there is something touching the pipe, there would be a rub. In my case, this pipe goes through my kitchen cupboards. It could be similar in your case, or contact with a floor joist or subfloor. My sollution will be to 1)insulate the pipe, to reduce constant temp changes, and 2)shave off cabinett where the pipe makes contact. It's still a theory at this point, but might help.