Our building plumber told me that the on-off valves on steam radiators
should be either turned on or off. He said they are not like a water-faucet
which can regulate the stream, but are like light switches which are either
on or off.
Is this accurate?
hot water and steam systems and their controls vary widely. some are
partial shutoffs on a loop, some are full shutoffs, see GRAINGER.
also great info and routine maintenance at:
see more about one-pipe steam and 2-pipe steam:
Pretty much. While you can regulate steam flow with a valve, it is not
easily done for your use and can also cause pre-mature failure of the valve
Depending on your system, you are running from a half pound to maybe 5
pounds of steam pressure. to regulate the flow to lower the temperature of
a given radiator takes a rather small orifice. Once it passes though the
orifice, it will expand to fill the entire space to give off the heat energy
Steam, since it contains water vapor, is very erosive and will cut grooves
into metal, glass, whatever it is passing through.
One reason steam is used to heat large buildings is the ability to pack a
lot of energy in a small space compared to water. It can be moved
efficiently long distances from the boiler to the point of use. This is
especially true of high pressure steam.
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