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Posted by Boston on January 18, 2008 at 13:38:45:
I have a single pipe, steam heating system.
During the heating cycle, the valve on my radiators will “Blow off some steam”. I hear them clicking opening and closing… and I hear air/steam (under pressure) coming out.
Is this normal? I thought the valves should close after the steam has filled the radiator??
I checked the pressure on the Pressurtrol and it is set to .5 & 1
Are the valves supposed to open and close during the heating cycle
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