Re: help tips on loosening old pipes/valves


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Posted by Harold Kestenholz - Hydronic Network on March 08, 2001 at 08:16:20:

In Reply to: help tips on loosening old pipes/valves posted by mikey on March 08, 2001 at 05:42:41:

Heating the outer nut just before turning can help loosen the connection. Work the nut back and forth in small motions with tight-fitting wrenches many times to loosen the connection.

The valves were usually brass, so they don't crack like cast iron; but you can beat almost anything to pieces with a sledge hammer. Sawing the nipple and installing a new one after removing the pieces can save the valve, if it is still good. If it is a steam radiator the valves are special valves and may be worth keeping. After cutting the nipple, the remainder can be driven inward for removal inside the valve after cutting inside the nipple with a saw until just reaching the brass thread of the valve.




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