Crazy boiler idea?

[GeorgeRay]

The contents of the Red book in their entirety are in the latest edition of Model Engineer which came through my letter box on Monday.

[spurley]

Hey George

That's good news, I will be home this evening and I will look that out. My ME subscription seems to have 'come good' now.

Cheers

Brian

[JohnP]

The Red books are available from the Southern Fed, and presumably the other societies too. As far as I know, there isn't an on-line version, but they only cost 40p each plus postage, which I think is 20p per book if multiples of 5 are ordered.

My club decided that each member should have a book, plus ther's one in the clubhouse nailed to the wall!

JohnP

[paul]

Can you usually find ME in W H Smith or is it a bit too 'specialist'?

This thread seems to have generated a bit more interest than I'd anticipated; it was only an idea, I have absolutely no intention of building a boiler in that fashion!

[gwrfan]

Hi Paul,

ME used to be found on the shelf in the larger WH Smiths, ( I used to get in in Exeter) but not in my local small town branch. If you don't want to risk a subscription at the moment (??), your local Smiths will always take an order for you, which is what I do. Pity to miss an issue if they sell out before you get there! And, if you decide on a subscription later, you can just cancel your order.

Geoff

[paul]

Thanks Geoff, there are a couple of big stores nearby (Wolverhampton and Telford) - one of them will probably have it I guess.

[gwrfan]

johnp said:

The Red books are available from the Southern Fed, and presumably the other societies too.

Just received 'our' copy of the Southern Federation News for march 2006. For anyone that is not aware (me included!!), wef 1st January this year there is a revised Code for boiler testing. The News refers to the "Old"Red Book"", so I assume the new one is different?

Haven't got my new ME yet, but I'm looking forward to reading the new 'rules'

Geoff

[greasemonkey]

HI Geoff
I know Cornwall is a sleepy place, (LOL) but these boiler regulations have been being talked about for the best part of 6 months! As part of the new regs you need to know the capacity of the boiler being tested to calculate the bar/liters. What about setting up a page somewhere that the capacity of common boilers can be listed?
regards

Andy

[gwrfan]

Hi Andy,

You ought to know that it's not that long ago that Cornwall got 'lectric, LOL!!

It's surprising how many people don't actually buy Model Engineer. And in our little club, although we have a boiler tester, I personally wasn't aware of the New Regs until quite recently.

Also, I read today that all our safety valves now have to be bought with 'CE' marks, and a "certificate showing the operating range of the safety valve, and giving some indication as to its use". I guess the prices will rocket now, LOL!

Geoff (Who turned the lights out?)

[the_viffer]

Well they sprung the rules on me in sleepy ol' London Town. First I heard was at the New Year shows. Here I am with a couple of almost complete boilers and 5.1 "An Inspector will require to examine a boiler at least twice during construction in order to satisfy himself that the requirements of [provisions relating to material and solder penetration that can not now be seen in the boilers] are fulfilled"

Somehow I think it could have been shouted from the rooftops a tad louder.

[Chris Kelland]

Hi Andy,

Interesting to read what you say about safety valves, re. CE marks. Where did you read this?

Chris.

[greasemonkey]

HI Chris
It was Geoff who mentioned the CE marked safteys and that is news to me as well, another intresting addition is the requirenment for all valve spindles should ideally be captive! Sensible it may be, but my farther has a Fyne Fort kit for his B1 that is now pretty much usless!!!
Andy

Andy

[greasemonkey]

HI All
These rules have been in the offing for some time and have been made after disscusion with all the main organisations, eg Southern Fed, Northern Association, 71/4" society, GL5 (who don't actually issue boiler tickets).
My club boiler inspectors had a meeting about the rule changes last year to discuss the how they were going to implement them. It seems to me that someone in your club hasnt been passing the information on.
The old boiler ticket has been replaced with a boiler record card a hydraulic inspection cert and a steam test cert all of which will have to be produced when visiting another club. Additionally the ticket can also be used to show a failure. On the plus side ALL boilers now require a serial number and this is recorded on a tear of slip that is sent in my case to the southern fed. What they do with it, heaven only knows!!!!!
Viffer you should be okay as Malden have an endoscope that should make checking solder penetration easy!!!!

Andy

[Chris Kelland]

Hi Andy,

Captive valve spindles are only a requirement on new boilers or boilers that are treated as new. CVS s are only recommended on previously tested boilers, in fact in Southern Fed News there is a bit on converting valves to captive ones.

Chris.

[gwrfan]

Hi Chris and Andy,

With regard to marking/certification of new Safety Valves, I read this in the March Southern Fed Newsletter, in the 'Around The Clubs' section. Read the bit from Chesterfield & District MES (page26) - Editor's Note. I can quote if if you don't have access.

Geoff

[greasemonkey]

HI Chris
My posting about the captive spindles was slightly misleading. As you say it only applies to new boilers but my farthers boiler hasnt been tested yet and so will be classed as a new boiler, hence parts of the kit are now almost useless as are probably many other peoples unused boiler fittings!!!

Andy

[chameleonrob]

all the new regs say about the design of safety valves is the they open at the correct pressure and do not let the pressure exeed 110% of working pressure during the accumilation test and the "safety valves should be locked at the design pressure once they have been proven to operate adequately. In any case, check that none of the components of the safety valve can come adrift thus allowing an uncontrolled release of the boiler conernts"

"should" is defined as advisory

[havoc]

all the new regs say about the design of safety valves is the they open at the correct pressure and do not let the pressure exeed 110% of working pressure during the accumilation test

Actually, that 10% requirement can never be a requirement for the valve in itself. It can be (and is AFAIK) a requirement for the safety equipment of the complete boiler. So it can be that you need to 2 (or more) valve to satisfy the requirement.

If it is a requirement for a single valve, then the rule was written by ***s.

[Shawki Shlemon]

Hi All
Regarding the 10% or 110% on the safety valve issue has nothing to do with safety valve setting at all but it is a reference to the safety valve/ valves capacity to handle the steam released during accumulation test .In Australian Miniature Boiler Code there is a graph for safety valve/s size verses heating surface area and boiler operating pressure.
I hope that this gives an idea how to select safety valve size .
To get information on the above code please go to
www.aals.asn.au/ and then go to contacts .

[GeorgeRay]

Shawki
It must have something to do with the safety valve setting otherwise you could use the prescribed size from the boiler code and screw the valve down so that it never release at all. I do however appreciate what you are trying to say in that if you don't have a big enough valve then you will not be able to stop the pressure rising no matter what the setting. On my Boxhill the original safety valve which was to Martin Evans design allowed the pressure to rise too high. The problem was not the valve size but the size of the holes in the top screw cap. Does the Australian code specify the area for steam release through the cap?