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Radiator supply valve making continuous noise

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ccat54
ccat54 Member Posts: 1
Hi - hope this is an appropriate place to post this. I'm currently living in an apartment with steam radiator heating. Lately on the main living room radiator there has been a loud hissing noise coming from the open/close valve area as well as a pipe in the room adjacent that sticks out from the floor (not sure if this is related to radiator, but I believe so?). The noise happens both when the radiator is on and off. 

The noise seems to occur sporadically. It happened a few weeks ago and then stopped for a decent amount of time and now it is back. Any ideas on the cause and potential solutions? Maintenance is an option, but I would prefer to solve myself if it's an easy fix. Thanks. 

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  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,833
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    Hard to say maybe a few pictures could be posted. Could be a bad valve with internal problems. Could be a steam leak from the valve packing. Use a mirror to look for steam leaks ....it will fog up when the steam hits it.