boiler certificate

[YorkshireBear]

I'm kinda new to hobby so i was just wondering if anyone could explain how the system works? When it expires what happens and what has to be done to get one?

 

[Teaboy1]

Gosh........how long have you got? Pull a chair up and lets start at the beginning................!!
A boiler is a pressure vessel and ALL pressure vessels have to be examined, tested, certified design & approved construction, thats anything........absolutely anything from a copper hot water cylinder to a nuke power plant..........and a wheeled kettle!

http://www.nationalboard.org/default.aspx

This is the US board that covers this sort of stuff, we here in the UK are governed by the following;

http://www.lr.org/lrinsurance/asme-services/aia.aspx

Now a "boiler" becomes an issue above some 50 bar-litres, its still a pressure vessel but add "fire tubes" and things become much more involved. Anyway our wheeled kettles need an internal exam every 5 years and a hydraulic test every 2 years, Safety valves can be bench tested and boilers re-tubed costing about £15k for a small 'un. Any metal wasting and stay breakages must be replaced or its deemed a hazard. Boilers from GWR and LMS days are all well past their prime and most preservation societies will have to buy/make a brand new boiler. This is where the expense really gets serious.....! Another small point is that there are no EU regulations regarding steam loco boilers, it never occured to Brussels to draw any up, so it's all done "the way it used to be done" regarding design and construction, not much call for it nowadays!!

See pete's blog for further info...!

HTH

added; this is a bit generic but covers most bases and fired boilers...........but loco boilers are a very grey area..........wait and Im sure someone shall be along sooner or later with better info!!

http://www.berr.gov.uk/files/file11297.pdf

 

[YorkshireBear]

thank you

much appreciated

 

[Barryat11]

I used to inspect boilers for Nottingham Model Boat Club. These were tiny Cheddar boilers that hold a pint of water & work at 40psi lol! Are you talking boilers on full sixed loco's, assume you are... its a minefield of regulations but for working models, Northern Association of Model Engineers can advise

 

[Teaboy1]

See what I mean.........and this is just in yer local Sainsbury's....!!

http://www.bbc.co.uk/news/uk-england-hampshire-11302161

Imagine that now scaled up to a 25 foot loco boiler!! Sad news like, hope all concerned speedy recovery! Safety features a loco boiler have are safety valves (usually 2) and fusible plugs inside boiler (usually on firebox crown) that would melt if ever crown lost its covering of water, ie injectors failed.

 

[Mvann]

Our coffee machine at work has to have it's boiler inspected every year.

 

[E&W Lucas]

I'm kinda new to hobby so i was just wondering if anyone could explain how the system works? When it expires what happens and what has to be done to get one?

If you're talking loco boilers, then they have to be lifted out of the frames and examined every ten years as a minimum. This is where the expression 10 year boiler ticket comes from. In reality, any locos that I've been involved with are inspected annually by the insurance people.

However, that does not mean that the loco is guaranteed to be serviceable for that time. The owner will be required to carry out work to a standard to satisfy a boiler inspector, before a "ticket" is issued. However, a fault can develop at any time subsequently, which can lead to a loco being stopped for major work. Essentially, boilers are monitored regularly & rigarously, with repairs being carried out as necessary. That can often mean that it's necessary or more cost effective to carry our a "10 year overhaul", before one is theoretically due. If a boiler has a defect, you can't run it, even if you've got 9 years, 364 days on the boiler ticket.

 

[YorkshireBear]

If you're talking loco boilers, then they have to be lifted out of the frames and examined every ten years as a minimum. This is where the expression 10 year boiler ticket comes from. In reality, any locos that I've been involved with are inspected annually by the insurance people.

However, that does not mean that the loco is guaranteed to be serviceable for that time. The owner will be required to carry out work to a standard to satisfy a boiler inspector, before a "ticket" is issued. However, a fault can develop at any time subsequently, which can lead to a loco being stopped for major work. Essentially, boilers are monitored regularly & rigarously, with repairs being carried out as necessary. That can often mean that it's necessary or more cost effective to carry our a "10 year overhaul", before one is theoretically due. If a boiler has a defect, you can't run it, even if you've got 9 years, 364 days on the boiler ticket.

ah i see that's what i was looking for thanks alot