Simplex Superheater Details

[Martin Johnson 1Participant @martinjohnson1]

I am doing calculations on several Loco designs to determine the amount of superheat. I know the Simplex has a single superheater flue 1.125" OD, but I don't know what the drawings show to go in it. I guess it would take 4 passes of superheater tube? What diameter? Maybe a Schmidt type arrangement? Or 2 parallel out and back pipes – one for each cylinder perhaps? Is a radiant arrangement intended?

Description and major dimensions would be greatly appreciated.

Thanks in advance,

Martin

[Martin Johnson 1Participant @martinjohnson1]

Plea for dimensions

[Clive Brown 1Participant @clivebrown1]

My drawing shows a 2 element radiant superheater, 7/16 inch dia. stainless tubes extending to the back of the firebox.

[John BaguleyParticipant @johnbaguley78655]

Hi Martin,

the superheater is a single out and back made from 7/16" x 20g stainless tube. It is a fully radiant type extending right to the back of the firebox.

John

[Martin Johnson 1Participant @martinjohnson1]

Thanks for that John – ultra quick on the reply too!

It's no surprise that there seem to be quite a few alternative superheater layouts for Simplex then!

Many thanks,

Martin

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