Regulation covering domestic heater pressure relief devices
Regulation covering domestic heater pressure relief devices
(OP)
I am woring on design of domestic water heater that will use pressure relief to protect from explosive pressure failure.
Enclosed medium is steam and air in small volume 1-2 liters.
Normal working maximum presure 10 bar.
Assuming world-wide usage, where would I look for guidelines, regulations and safety criterian that would cover the implimentation of such a device?
Many thanks.
Enclosed medium is steam and air in small volume 1-2 liters.
Normal working maximum presure 10 bar.
Assuming world-wide usage, where would I look for guidelines, regulations and safety criterian that would cover the implimentation of such a device?
Many thanks.





RE: Regulation covering domestic heater pressure relief devices
I am not sure of the ROW requirements though.
Cheers
Hpost
RE: Regulation covering domestic heater pressure relief devices
Large standard so you will need to check which part you need.
Many years ago it was the British Gas purchasing requirements before they were privatised...
H
www.tynevalleyplastics.co.uk
It's ok to soar like an eagle, but weasels don't get sucked into jet engines.
RE: Regulation covering domestic heater pressure relief devices
H
www.tynevalleyplastics.co.uk
It's ok to soar like an eagle, but weasels don't get sucked into jet engines.
RE: Regulation covering domestic heater pressure relief devices
RE: Regulation covering domestic heater pressure relief devices
From there I'd take a peak (by title at least) of all the listed cross-reference standards too.
RE: Regulation covering domestic heater pressure relief devices
This is a new product with unusual characteristics.
The heating chamber is allowed to run dry at high temperatures in normal operation. This chamber is vented to athmosphere when not producing steam. However if a catostrophic failure and vent becomes blocked and pressure is not relieved through output then the heating chamber effectively becomes presurised by captive steam. A pressure relief valve will release this pressure below SWP. I am concerned PRV will be subjected to temperatures in excess of 200C and become comromised. If it fails open this is not a problem.
I would like to know if there are any regulations that may address this eventuality.
RE: Regulation covering domestic heater pressure relief devices
http://www.showerspares.com/triton_shower_spares/t...
Used in electric shower heaters.
Thanks
RE: Regulation covering domestic heater pressure relief devices
RE: Regulation covering domestic heater pressure relief devices
Reliance Water Controls in the UK also make TPRV's but I haven't managed to find a datasheet online to link to. If you want to look then TPR 15, TPR22, TPR28 are the ranges I'm aware of, but they are all soft-seated with a brass plug sealing against a silicone disc.
RE: Regulation covering domestic heater pressure relief devices