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Posted by HeatPro on February 09, 2007 at 12:27:02:
In Reply to: NEAR PIPING ON NEW BOILER posted by RICK WEGEL on February 09, 2007 at 10:41:59:
: WHAT IS DIFFERENCE BETWEEN USING BLACK IRON VS. COOPER?
+Copper is usually soldered, solder has limited strength when warm.
: ARE SWING JOINTS NECESSARY? WHAT ARE THEY?
+Swing joints use two elbows and/or tees with the attached pipes at somewhere near right angles to attach the pipes so expansion and contraction allows the nipples to move in the fitting threads instead of breaking solder joints from direct force.
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