Pressure Reducing Valve Noise

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by tomtheguvnor, Feb 11, 2007.

  1. tomtheguvnor

    tomtheguvnor New Member

    Feb 11, 2007
    Hi Everyone,

    I moved into a reasonably new (2-3 years old) rental apartment about a year ago now. Recently started to be kept awake at night by periodic, loud, creaking noise which is coming from the plumbing.

    Well tonight I decided to investigate and as far as I can tell the source is what I believe to be a HoneyWell Pressure Reducing Valve (looks like this).

    A quick Google revealed this data on a similar HoneyWell valve. The troubleshooting section seems to suggest tweaking the outlet pressure to resolve problems with "whistling" noises.

    Although I'm no expert, I'm keen to attempt resolving this problem myself as it will take my landlord about a month if I leave it to him(based upon past experience).

    So my questions are:
    1. Is it likely that varying the outlet pressue will fix my creaking problem?
    2. Is there any potential damage I could cause by attempting this?

    Based upon the product data for this valve, altering the outlet pressure looks reasonably simple.

    Any help received is very greatly appreciated.

  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    Is there an expansion tank in the water line near your water heater? If not, that is likely the problem. As an experiment, buy a water pressure gauge (around $10) and screw it into the drain of the WH or somewhere else you can easily attach it. When things are making noises, check the pressure. If you have a PRV and don't have an expansion tank, after running the hot water, the water expands, creating a potentialy very high pressure. This can make the prv make noise sometimes. The PRV has an internal check valve causing the system to be referred to as a closed system. A closed system needs room for the water to expand as it gets heated.
    Last edited: Feb 11, 2007
  3. Sponsor

    Sponsor Paid Advertisement

Similar Threads: Pressure Reducing
Forum Title Date
Plumbing Forum, Professional & DIY Advice Connecting a pressure-reducing valve to PVC? Aug 7, 2017
Plumbing Forum, Professional & DIY Advice Wilkins 70 Pressure Reducing Valve May 29, 2017
Plumbing Forum, Professional & DIY Advice I Replaced Pressure Reducing Valve, leaking? & Pressure Q. Apr 27, 2017
Plumbing Forum, Professional & DIY Advice Pressure Reducing Valve replacement Mar 18, 2017
Plumbing Forum, Professional & DIY Advice Pressure reducing valve is leaking... can i maybe just remove it? Feb 13, 2017

Share This Page