Rob's Edrig

Rob · Post by **Rob** » Sun Jan 10, 2010 9:26 pm

boiler progress

PCLR · Post by **PCLR** » Sun Jan 10, 2010 9:40 pm

very nice move on a treat!!!

mhlr · Post by **mhlr** » Sun Jan 10, 2010 9:42 pm

Ah so it's a wet back boiler then?

PCLR · Post by **PCLR** » Sun Jan 10, 2010 9:48 pm

yeah wet back heat i will made steam better unlike the djb boiler which are dry backhead

Rob · Post by **Rob** » Sun Jan 10, 2010 10:00 pm

yeh wet back heado more efficient that david baily's and also 5 flue tubes instead of 4

also features a propper regulator under the dome

PCLR · Post by **PCLR** » Sun Jan 10, 2010 10:02 pm

very nice indeed, what type if coal will you fired it on???

Merddin Emrys · Post by **Merddin Emrys** » Sun Jan 10, 2010 10:04 pm

Now that looks like great work

Rob · Post by **Rob** » Sun Jan 10, 2010 10:30 pm

PCLR wrote:very nice indeed, what type if coal will you fired it on???

i have two varieties of steam coal to hand, but dave wadkins web site says:

"I use domestic smokeless fuel rather than coal, Homefire brand. This burns with a hot flame and leaves very little ash and no clinker. I have not had so much success with anthracite or steam coal."

Dr. Bond of the DVLR · Post by **Dr. Bond of the DVLR** » Mon Jan 11, 2010 8:09 am

Blimey looks a well engineered edrig boiler! Are DJB wet backheaded?? I'd have thought that would be inefficient and would burn the paint off.
You will have a far smaller grate size if so, do you think that will affect the steaming?

Rob · Post by **Rob** » Mon Jan 11, 2010 12:55 pm

Mr. Bond of the DVLR wrote:Blimey looks a well engineered edrig boiler! Are DJB wet backheaded?? I'd have thought that would be inefficient and would burn the paint off.
You will have a far smaller grate size if so, do you think that will affect the steaming?

djb's boiler is a dry backhead, mine has been made wet but the result is the grate is 6mm shorter, but this should affect efficiency as there is more water around the box to absorb the heat

the back probable wont be painted, just left to blacken itself, or i may clad it

Dr. Bond of the DVLR · Post by **Dr. Bond of the DVLR** » Mon Jan 11, 2010 5:26 pm

Sorry I meant to say are DJB dry back head? got me wording wrong!

Rob · Post by **Rob** » Tue Jan 12, 2010 10:53 am

yes the djb ones are backhead'ed

andysleigh · Post by **andysleigh** » Tue Jan 12, 2010 1:27 pm

looks good rob

i cans ee this making plenty of steam. the djb boilers make enough as it is!

Rob · Post by **Rob** » Tue Jan 12, 2010 9:53 pm

david bailey didnt think so, he though i was over complicating it with the wet backhead and 5 flue tubes

andysleigh · Post by **andysleigh** » Tue Jan 12, 2010 9:56 pm

Rob wrote:david bailey didnt think so, he though i was over complicating it with the wet backhead and 5 flue tubes

in a way, you are a bit. allot for such a small loco.

The edrigs i have seen, all the owners say the boilers make enough steam.
but your will be the cream of the crop

SillyBilly · Post by **SillyBilly** » Wed Jan 13, 2010 4:49 pm

Personally I'd rather have a larger grate area given how small the grate is allready, it'll be interesting to see if it is better though.

Rob · Post by **Rob** » Wed Jan 13, 2010 5:28 pm

yeh we'll see how it performs

it was the decision of the boiler make to make it a wet backhead and 5 flue tubes

Rob · Post by **Rob** » Sun Feb 21, 2010 9:00 pm

boiler is done and hydraulic tested, just needs its steam test then he can come home

DolwyddelanLightRail · Post by **DolwyddelanLightRail** » Sun Feb 21, 2010 9:03 pm

wow thats coming on well!

Dr. Bond of the DVLR · Post by **Dr. Bond of the DVLR** » Sun Feb 21, 2010 9:18 pm

Looks a beaut! Any problems with the hydrolic?

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