Wayward Belle has u-cup seals and polished stainless steel piston rods. Zero leaks at 700 rpm and many miles with 175psi and 500° superheat. Pain to replace though as you have to pull the piston rod from the crosshead to slide the old one off and put a new one on, then get the depth of the piston ju...

Hi Pete, Yes the whole nozzle is the 1/4" NTP outlet of the bell reducer. The tip of the 1/8"NTP nipple is recessed in the hole about 1/4-3/8". Steam comes in around the annular gap and the fuel enters in the centre. They mix and voila! Fuel blown to atoms haha. I have a photo of the jet I'm trying ...

Maybe to act as a seal but also a 'bearing' allowing for thermal expansion of the tubes?

Thanks. Most of what you see to the left are sections of old road grader tire chain. The main focus of the jet is at a 1/2" thick section of 6" steel pipe cut lengthwise. The steel chunks are in there to act as sacrificial targets to make the fire brick last longer and to glow red hot to help with m...

Fuel tube: Down the gullet:

Here is a simple lifting steam atomizing burner I made for our 40' steamboat "Persistance". PXL_20210211_184631752.jpg It was made with simple off the shelf plumbing fittings. I chose stainless steel for a long life in the firebox while burning other fuels or running the other burner (Williams burne...

Beautiful find Chris.

Did you find it locally? It looks like many of the parts are nickel plated?

I wouldn't think an integral thrust bearing would completely preclude marine use.

Welcome to the forum.

The RMS Segwun is one of my favorite ships of all time. I very much enjoyed riding on her and visiting her engine room as a child and young adult.

Tell me, is the Wanda III still in operation?

I was thinking more along the lines of #4 heating fuel or recycled internal combustion engine lubricant.