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View Full Version : Reciever PRV vent pipe???



monkey spanners
05-01-2012, 05:59 PM
Whats the propper practice with these things, i assume they need piping outside of the plant room but is there any guidlines on where to and to what height and does it need a thingy on the end to stop it getting bugs water or stuff in it and blocking it up?

Did see a mushroom shaped brass thing for boiler vent pipes and wonder if something like this would be an idea...

or a whistle off a steam engine :p

Jon :)

install monkey
05-01-2012, 07:46 PM
boiler vent pipes are supposed to vent to a visible area,safely and discharge either against the wall or at low level as you have think if a relief valve discharges hot water at 3.5bar or gas at 28 bar then if you harm anyone then your up in court,do not pass go,or collect £200!!

stufus
05-01-2012, 08:00 PM
Discharge is required to be at least 4.5mtrs above ground level and 6mtr from windows,doors or vents.The discharge should be terminated in a manner which prevents discharged refrigerant being sprayed directly at individuals nearby and prevents debris from entering and clogging the discharge port . A specially designed diffuser is recommended,such as a whisper-flow vent diffuser.
http://www.documentation.emersonprocess.com/groups/public/documents/bulletins/d102747x012.pdf
SOURCE=unknown APC maybe.
Cheers
Stu

james10
05-01-2012, 09:12 PM
Pretty sure it has to be in steel pipe work too

monkey spanners
05-01-2012, 09:52 PM
Just to be clear, this is a relief valve on a liquid reciever and not a boiler as i may have given the impression it was:o