Take a look?

There is (well in 2002 and it may have changed since) a limit of 2 Bar.Litres, so if 5 litres and 0.49 Bar, then still needs the CE mark because 5 x 0.49 = 2.45 Bar.Litres, and is greater than the limit of 2 Bar.Litres. I too thought that if below .5 Bar or 2 litres it was exempt, but in my 3 month study could find no regulatory basis for this belief, the one statement in its favour was contradicted in numerous other places.

The whole thing is such a minefield you begin to think it must be deliberate to give the regulators something to justify their existence.

Regards

Richard.

Edited By richardandtracy on 30/12/2016 16:53:30

Edited By richardandtracy on 30/12/2016 16:57:03

By no stretch of the imagination am I qualified to comment on this subject, but: My first point of reference [if I had the need to know] would be this: **LINK**

http://www.hse.gov.uk/pressure-systems/law.htm

A quick skim reveals two immediately interesting points:

[quote_1]

Simple Pressure Vessels (Safety) Regulations 1991 (SPV)

Simple pressure vessels have the following characteristics or limitations:

1. intended to contain air or nitrogen at a gauge pressure >0.5 bar but less than or equal to 30 bar
2. not intended to be exposed to flame

[quote_2]

A relevant fluid is:

• steam at any pressure

I'm not convinced that any one is Michael. It's probably not a good idea to start looking at the standards side of things.

It is interesting to compare here with there though. Oz for instance - rather interesting as it gives an indication of what they have done there - 2 official certs for download.

**LINK**

It's what's needed really but I would hope that the rules do allow variations providing the strength requirements are met. Eg my embryonic boiler would probably have an excess of tubes passing through it which could mean that there was no need for stays. Maybe not thicker end plates as well.

Not much elsewhere. Panics about state boiler regs in the USA.

Looking at Oz they have turned it into a bit of a money go round. Nice round prices for booklets but not TOTT. On the other hand I am not sure what the exchange rate is now. What they have done though is attempted to preserve the hobby. They have also taken on a certain amount of liability.

John

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The link to Oz leaves me wondering what % silver people use ?

John

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