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Posted by Don on February 03, 2004 at 08:28:32:
have a one pipe steam system heating 2nd fl duplex. one rad, is rattling tried re slopping rads & pipe new air vent, psi at boiler .5 in 1.5 out. it seems the free floating disc in supply valve hoffnam 180 is making the noise. is this possible? how can this be repaired?new discs or a new valve? how do i get the correct parts. the rest of the system is fine .
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