I'm new to the world of steam and have begun building a small vertical boiler (3" diameter) to run small simple engines that I have yet to build. I'm discovering that it's quite difficult to find clear simple information on the configuration of fittings on a boiler, so I have a few questions:
(1) I'd like the boiler to comply with regulations as far as possible, and understand that for this there will need to be two routes for getting water into the boiler. Can I just put two bushes with check valves into the barrel of the boiler side by side? Or is there some other particular configuration that is recommended (e.g. different heights, etc)?
(2) I understand that the check valves for water in should be below the working water level of the boiler. Am I right in this?
(3) I assume that the main blowdown valve should be positioned as low in the boiler as possible ( but obviously without fouling the bottom end plate). Is that correct?
Once I have the answers to these questions I can move forward on to the next stage.
Would be grateful for advice from any of you or from The Master himself if he has time!