Posted by Joe Lambert (JoeSteam) on July 27, 2001 at 05:26:06:
In Reply to: steam temp posted by luigi deluca on July 26, 2001 at 17:14:26:
Let me put in my ideas on this steam temperature discussion. You MUST have saturated steam in this line. The only way to get superheat is to have a boiler that produces it or to put saturated steam through a large pressure reduction. It sounds like you have neither.
The ONLY way to reduce the temperature of steam is to reduce the pressure. So this is one way to reduce the temperature of that pipe under the floor.
However, if you do this, it may cause problems in the condensate system. You may need pumps where you do not have them now. You must look at the system as a whole and not an individual pipe to determine the effects of reducing the pressure.
Also, even if you go down to lets say 15 psig, the steam temperature is still around 250 deg. F. So, my recommendation is to insulate or move the pipe thats giving you trouble.