Boiler testing 2006 style

[Red_Hamish]

  We could all :gather   for a   or two and enjoy a :gather  about this  :post



Jim

p.s. I do hope you've read the download attachment LOL

[Eddy Matthews]

Good to see Sandy still has his weird sense of humour with the "exceptions" for some PD's in the suvern hemisffeer.  

[derekwarner_decoy]

OK, OK PD's   ..if I didn't know betta  :wink:  :arrow: I would have tought someone was trying to take fun in my....the questions  :  : by providing a listing of EXCEPTIONS that/but would only apply in my OZ City of W....G..G

I must reflect on this further as I fly out in the morning for a few days work :computer       interstate  :rant    :rant...... Derek

[steamboatmodel]

Hi Sandy,
If I read this clear;
Introduction, Page 3, para 4;
Small boilers (i.e boilers with a capacity of not more than 3.0 barlitres)
are exempted from the requirements of this code. However, it
is recommended that small boilers be fitted with, at least, a safety
valve and a pressure gauge and that these be tested every 12 months
in order to ensure correct operation at the correct release pressure.
The boiler and the pipework installation should
also be checked at least every 12 months.

then any Boiler that holds less than 3 liters volume or runs under 3 Bars (45psig)pressure does NOT need to be tested in any fashion?
Do they offer any recommendations for those who do wish to test?
Regards,
Gerald

[sandy_ACS]

 

Hi Pd's,

Gerald.....sorry my friend but it does not mean what you are thinking....

To find the Bar/litre capacity you must multiply the total capacity (total internal volume ) in litres by the actual working pressure in Bars.

Note well, this is not the same as the amount of water used to fill the boiler for normal running, but means the volume of water required to entirely fill the boiler to overflowing with all air expelled.


E.G... 1 ltr total capacity x 3 bar (approx 45psi) = 3 bar/ltrs = exempt

or  E.G... 500 ml total capacity x 6 bar (approx 90 psi) = 3 bar/ltrs = exempt.

whereas:    1 ltr total capacity at 4 Bar (approx 60psi) = 4 bar/ltrs = NON EXEMPT.


For those who choose to test, even though their boiler may be within the exempt range (I personally think this is a good idea, since even a small boiler can become a dangerous thing if it fails under steam pressure)...then the only acceptable procedure is to follow the rules as laid out in the document, just as would be done for any non-exempt boiler.

This would be applicable to both pressure and steam test procedures.

I should point out...stress...that these rules are at the moment, specifically for the UK...it remains to be seen if they are adopted in other countries....although I am sure some, at least, will do so eventually...especially those who have previously embraced the general UK testing codes.

I hope this clarifies things a bit more for you.

Best Regards.

Sandy.  

PS...there is a rumour going round that a place named Woolongong...has adopted the opposite rule...in that they are exempting boilers larger than 1ltr water capacity, regardless of working pressure....and that the small ones are to be subjected to 10 times the UK guide line test pressures.....He He....that should stop them invading the Scottish waters!! in their chain driven steam boats. LOL.    :music

[steamboatmodel]

Hi Sandy,
Thanks for straightening me out. I agree with you about boiler testing and Test all mine to 2 Times the working pressure, just to provide my own peace of mind. As far as I have been able to find in Ontario Canada we are covered under
http://www.e-laws.gov.on.ca/DBLaws/Regs/English/010220_e.htm
I have copyed the relevant parts and deleted the rest.
"ONTARIO REGULATION 220/01
BOILERS AND PRESSURE VESSELS
.....deleted........
(2)  This Regulation does not apply to,
.....deleted........
(c) a boiler having a heating surface of 10 square feet (0.93 square metres) or less;
.....deleted........
(q) a pressure vessel having a capacity of 1 and one-half (1½) cubic feet (42.5L) or less, that is not a fitting;

(r) a pressure vessel having an internal diameter of six (6) inches (152mm) or less. O. Reg. 220/01, s. 2 (2).
.....deleted........"
Thus we are not required to test for our small boilers, but I think anyone building one should have the confidence in there work to conduct a test.
Regards,
Gerald