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Author Topic: Looking for a PRV  (Read 72 times)

Novaguy

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Looking for a PRV
« on: October 11, 2021, 03:26:26 pm »
Hello all,

I'm new to the forum and I'm hoping this will be the best place to locate a PRV.

To the best of my knowledge I have an old Renown steam engine that I've recently inherited. I've managed to seal up the leaks and make it operate very well.  This toy sat in my grandfather's basement for decades and I'm not sure where it came from.  The PRV is completely corroded even tonthe point that the threads are damaged.  I've thought about making the part, but I don't know the specs and would rather not dance with the devil.

Any help would be appreciated.

Nick

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Re: Looking for a PRV
« Reply #1 on: October 11, 2021, 03:36:46 pm »
Welcome to the forum, I can see why you’re guessing an Australian Renown, but you actually have a Candian Wilson model S2 from Toronto (to add to the confusion, there is also an English made Wilson)

It will be very difficult to find a spare, and you will likely have to make one or have one made…

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Nick

St Paul Steam

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Re: Looking for a PRV
« Reply #2 on: October 11, 2021, 03:42:14 pm »
Greetings and warm welcome from St. Paul In. 😊
Is this a steel boiler ?
Bruce
St. Paul Indiana , USA

Novaguy

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Re: Looking for a PRV
« Reply #3 on: October 11, 2021, 03:43:18 pm »
Thanks for the reply, now I know. You don't know by chance what year(s) they were produced. It also looks like I have to dust off my lathe.

Novaguy

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Re: Looking for a PRV
« Reply #4 on: October 11, 2021, 03:54:31 pm »
It appears to have a cast aluminum base, formed aluminum pressure vessel and brass flywheel.

Nick

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Re: Looking for a PRV
« Reply #5 on: October 11, 2021, 07:29:04 pm »
Thanks for the reply, now I know. You don't know by chance what year(s) they were produced. It also looks like I have to dust off my lathe.

I would guess late 40’s/early 50’s, but am not sure… I know there is an article in one of my Toy Steam News catalogs from Summer of 2010, I will try to find that for you tomorrow…

I unfortunately missed this auction last night and of course it went too cheap for the whole lot  :-\


https://www.ebay.com/itm/403206677000?nma=true&si=HMwwXP3EAIR3oCPLrVfotQSLtSc%253D&orig_cvip=true&nordt=true&rt=nc&_trksid=p2047675.l2557

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Nick

Novaguy

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Re: Looking for a PRV
« Reply #6 on: October 12, 2021, 12:12:40 am »
That dating makes sense, my dad always told me it was his. He was born in 43. I can see how these can become a real hobby. As an industrial mechanic and boiler operator, they're absolutely fascinating. Once I greased up the shaft and the steam driven parts it operated very well. I'm not sure what the recommended lubricants are for these things, but I has some Lucas engine assembly lube which is like honey and has a very high zinc content for metal to metal contact.  Thanks for the replies.

Nick

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Re: Looking for a PRV
« Reply #7 on: October 12, 2021, 08:19:29 am »
I found the article in my Toy Steam News, unfortunately I cannot post it on here as it’s all copyright material… Dick Cutler (author of the article) states that they were likely built sometime after WWII when there was a surplus of aluminum available. He also says it has a double-walled water jacket boiler with a central flue tube.

There is also an exploded view/diagram of the engine and it lists the safety valve thread as 1/4-28 thread.

(Sent you an email as well)
Nick

CBWho

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Re: Looking for a PRV
« Reply #8 on: October 12, 2021, 08:52:18 am »
Nick,
You can post a snippet or two:
"Fair use: (in US copyright law) the doctrine that brief excerpts of copyright material may, under certain circumstances, be quoted verbatim for purposes such as criticism, news reporting, teaching, and research, without the need for permission from or payment to the copyright holder"

Doing so here is clearly research and teaching.

Nick

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Re: Looking for a PRV
« Reply #9 on: October 12, 2021, 09:00:56 am »
Nick,
You can post a snippet or two:
"Fair use: (in US copyright law) the doctrine that brief excerpts of copyright material may, under certain circumstances, be quoted verbatim for purposes such as criticism, news reporting, teaching, and research, without the need for permission from or payment to the copyright holder"

Doing so here is clearly research and teaching.

I really don’t know how it all works and being friends with some of the writers/owners of Toy Steam News, I don’t want to upset them… A “snippet” of the article would pretty much be the whole thing as it’s only a page and the exploded view has the authors name followed by (All Rights Reserved)
Nick

 

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