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odds and ends... 1200lb system like Leahy, Belknap, Charles Adams class ships, the main steam line to the desup usually "T" just off the main steam stop behind the boiler, lower level. It's the long horizontal "U" bend (expansion bend) of piping going back into the boiler. Main steam is also used for the soot blowers on 1200lb systems. 150lb steam (366 degrees) is also piped to the burners (atomizing steam) to mix with the fuel oil. 1200lb saturated and aux steam is 567 degrees and 1200 main is 940-950 degrees and if there's ever a leak, the people around have problems. And although it has nothing to do with conventional boilers, on the Garcia and Brooke Class ships with the pressure fired boilers, they have augmenting steam cutting right off the 1200 main line to 15lb by way of a huge flange and orifice plate. Augmenting steam is to "recharge" the main condenser when it runs out of auxilliary exhaust to supply auxilliaries like the main air ejector, salt water heater on evaps, gland sealing system and steam to heat feed water in the DA tank.
Now, back to Vegas for a few days....
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