Belpaire Boiler for a PRR G-5

This forum is dedicated to the Live Steam Hobbyist Community.

Moderators: cbrew, Harold_V

SteveM
Posts: 7763
Joined: Mon Jun 27, 2005 6:18 pm
Location: Wisconsin

Re: Belpaire Boiler for a PRR G-5

Post by SteveM »

Nice work, Marty.

Your welding is neater than my caulking the bathtub!

Steve
Marty_Knox
Posts: 1724
Joined: Thu Jan 09, 2003 6:50 pm
Location: Michigan, USA

Re: Belpaire Boiler for a PRR G-5

Post by Marty_Knox »

Thank you Steve, but that is Glenn Grasley's welding. He has been working with me for the last five years, and is about the best welder I've known.
jlakes85
Posts: 228
Joined: Thu Feb 23, 2012 6:07 am

Re: Belpaire Boiler for a PRR G-5

Post by jlakes85 »

Marty,

Looks great. A lot more hydraulic press oragami than the shay boiler. What type of Miller Tig machine is that in the background? Looks like a 3 phase machine.

Regards,

John
Marty_Knox
Posts: 1724
Joined: Thu Jan 09, 2003 6:50 pm
Location: Michigan, USA

Re: Belpaire Boiler for a PRR G-5

Post by Marty_Knox »

jlakes85 wrote:Marty,

Looks great. A lot more hydraulic press oragami than the shay boiler. What type of Miller Tig machine is that in the background? Looks like a 3 phase machine.

Regards,

John
Hi John - Thank you!
It is a Miller Dialarc HF, a 300 amp machine for TIG and Stick. We do have 3 phase in the shop, but that is a single phase machine.
Marty_Knox
Posts: 1724
Joined: Thu Jan 09, 2003 6:50 pm
Location: Michigan, USA

Re: Belpaire Boiler for a PRR G-5

Post by Marty_Knox »

Here Glenn is welding the stays inside the firebox. The vacuum is set up to draw the fumes out.
Attachments
IMG_8862.JPG
IMG_8861.JPG
IMG_8866.JPG
Marty_Knox
Posts: 1724
Joined: Thu Jan 09, 2003 6:50 pm
Location: Michigan, USA

Re: Belpaire Boiler for a PRR G-5

Post by Marty_Knox »

The stand wouldn't go low enough to level the mud ring, so Glenn improvised. A length of pipe made a good support.
Attachments
IMG_8881.JPG
IMG_8885.JPG
Marty_Knox
Posts: 1724
Joined: Thu Jan 09, 2003 6:50 pm
Location: Michigan, USA

Re: Belpaire Boiler for a PRR G-5

Post by Marty_Knox »

Here are some views of the inner firebox.
Attachments
IMG_8878.JPG
IMG_8882.JPG
IMG_8884.JPG
Marty_Knox
Posts: 1724
Joined: Thu Jan 09, 2003 6:50 pm
Location: Michigan, USA

Re: Belpaire Boiler for a PRR G-5

Post by Marty_Knox »

Here is the inner firebox after welding. The pipes keep it from distorting from the welds.
Attachments
IMG_8890.JPG
IMG_8891.JPG
JohnHudak
Posts: 1140
Joined: Sat Jan 04, 2003 2:18 pm
Location: Ohio

Re: Belpaire Boiler for a PRR G-5

Post by JohnHudak »

Wow...!
Marty_Knox
Posts: 1724
Joined: Thu Jan 09, 2003 6:50 pm
Location: Michigan, USA

Re: Belpaire Boiler for a PRR G-5

Post by Marty_Knox »

Here Glenn is lapping the dome base.
Attachments
IMG_8895.JPG
IMG_8897.JPG
Marty_Knox
Posts: 1724
Joined: Thu Jan 09, 2003 6:50 pm
Location: Michigan, USA

Re: Belpaire Boiler for a PRR G-5

Post by Marty_Knox »

Here he is lapping the dome cap. We have a large lapping plate, a small lapping plate, and a hand lap. We use Timesaver non-imbedding lapping compound. The flatter the mating surfaces are, the easier it is to get them to seal.
Attachments
IMG_8899.JPG
IMG_8901.JPG
IMG_8898.JPG
IMG_8902.JPG
IMG_8903.JPG
765nkp
Posts: 776
Joined: Sun May 06, 2007 9:24 pm
Location: st louis, mo

Re: Belpaire Boiler for a PRR G-5

Post by 765nkp »

Marty, the boiler looks great. I have a question about the through stays, what size of pipe do you use for that? Sch 80?

Thanks Tim
Post Reply