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[derekwarner]

Guys....may seem a simple question  ......but clearly we have two differing locations

1. install the steam control regulator prior to the lubricator as shown in many examples of larger twin cylinder D/A engines...Saito, Stuart D10...JMC....ANTON....etc
2. have the steam control regulator pre installed in the engine assembly ...similar to many oscillator's...or infact the Monahon range of larger twin cylinder engines

Clearly...the only major thing that changes here is that with option 1. the regulator sees hot wet/dry steam, or with option 2. the regulator sees hot wet/dry steam + a mist of steam oil

I suppose a part of the confusion is that there is an absence of documentation on steam control regulators.... ..... or manufacturers ...any comments or thoughts appreciated......Derek

[oiler]

Actually that is a good question. I put mine before the lubricator so when I'm done having fun I can shut the throttle off and oil won't get sucked back into the boiler.

[derekwarner]

Thanks oiler...........my Saito [Y2DR] documentation talks in broken translated Japanese....about water hammer = wet steam condensate & the need to eliminate this prior to using the engine 

So considering all options...... ......thought....[along with the concept of an OZ paddler]

1. install a 1/8" HP tube Tee connection & isolation globe valve with overboard discharge between the boiler steam discharge valve & the engine steam regulator
2. install the steam regulator immeadiately close coupled to the lubricator which in turn is close coupled to the Y2DR steam inlet manifold [just like the original Saito setup]
3. on boiler lighting, open the boiler steam discharge valve [with the regulator closed]
4. this will allow steam & residual condensate to build up to the closed regulator
5. when the boiler relief valve setting is reached....open the 1/8" HP tube TEE connection isolation globe valve with steam & [oil free] condensate to overboard
6. the method in my madness here is that Australian paddlers had overboard steam discharge for boiler blowdown to remove river mud build up, and secondly overboard discharge is a good visual indicator when all condensate has been explelled as compared to discharging to the onboard conventional deoiler which would just be a guess
7. having the steam regulator [with positive shut off] positioned as such also ensures steam oil is locked & cannot cross contaminate the condensate overboard discharge......Derek

 

[KBIO]

Good afternoon!
may seem a simple question
Yes but they always bring confusing answers! Above all from me!
I think like Oiler!
 The way I do:
I want to lubricate my engine, but I do not want oil sucked back in my boiler => so my 1/4 turn valve is coming before  the oiler & then the engine.
I need to lubricate my 1/4 turn valve also (stiff, old, leaking,....) I add a valve on top of my boiler.
 
Concerning the condensate, I do not worry; I built up my pressure to 3 bars. I open toward the engine and blow the sh.. out of it until no water spits out , I partially close the valve to keep heat & oil streaming inside the engine.
 
When I am over, I isolate/close the boiler's top valve. I open the oiler and I suck the oil out while it is hot.I leave the oiler opened to atmospher.
When I get home. I blow compressed air inside the oiler to run the  engine dry.
When no water coming out ,  I  can open my boiler and hear : pssssssssssssss! But no oil  sucked in it!  
 
Note: oil inside the boiler does not hurt. It is even good I would say, as it will make a "blanket" inside,  between steam & H2O and will avoid to suck wet steam when opening toward the engine. (pressure decrease)
The only problem is that you need to clean the water gauge sometime.
Remember the Greeks having a pack of rope soaked with oil, they put in front of the boat to avoid sea water spraying around. Same as inside your boiler.
Somebody would be able to explain this better than me!
Do you to see inside a boiler????
http://www.youtube.com/watch?v=tI3tWuSsX7c&feature=player_embedded
Regards!

[derekwarner]

Thanks KBIO.... a very interesting VIDEO & the dangers of water carry over into the steam system  

I had intended an installation with the same logical placement, however think I can utilise clean steam/condensate discharge to represent the boiler blow down

The first image is not misleading   ...it is the large plume of steam being discharged from the PORT side just above water level..& just FWD of the paddle.....

The images below are of the early Australian built PS Oscar W .....I have purchased the plan set & the Saito Y2DR ...so is a long term project .....

 from KIBO..... "Note: oil inside the boiler does not hurt. It is even good I would say, as it will make a "blanket" inside"

We were taught that any oil contamination within the water path of the boiler should be washed/chemically cleaned as the oil will form a tarnish/burnt layer & hinder the thermal transfer & reduce the boiler efficiency ......Derek

[KBIO]

Good afternoon!
Lovely engine Derek! )Those Saïto's are a pleasure to run.
Concerning the oil inside the boiler, as I said, I try everything no to get some. But , if, eventually after a while, I have some , I do as written in your notice, I clean it out.
Regards!

[mogogear]

Derek -it has been said more than once already- but that cladding on your Saito engine takes it into a whole other realm- Man, it looks so good! and it has to help with condensate as well.