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Re: NEAR PIPING ON NEW BOILER

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Posted by jimj on February 12, 2007 at 12:38:37:

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?
: ARE SWING JOINTS NECESSARY? WHAT ARE THEY?
: THANKS
: RICK

black pipe... used on steam systems... doesn't shed heat as fast as copper... so steam doesnt condense before it hits the radiators... less water hammer issues.... black pipe doesnt expand as much as copper.. so not as much stress on the joints... also... black pipe is threaded... threads act like expansion joints.. absorb metal expansion... copper is soldered, doesn't expand well... steam is much hotter than hot water.
copper is used on hot water systems... which are cooler temperature than steam.... not as much heat stress on the piping... copper sheds heat fast, good for hot water convectors and radient systems.

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: : WHAT IS DIFFERENCE BETWEEN USING BLACK IRON VS. COOPER? : : ARE SWING JOINTS NECESSARY? WHAT ARE THEY? : : THANKS : : RICK : black pipe... used on steam systems... doesn't shed heat as fast as copper... so steam doesnt condense before it hits the radiators... less water hammer issues.... black pipe doesnt expand as much as copper.. so not as much stress on the joints... also... black pipe is threaded... threads act like expansion joints.. absorb metal expansion... copper is soldered, doesn't expand well... steam is much hotter than hot water. : copper is used on hot water systems... which are cooler temperature than steam.... not as much heat stress on the piping... copper sheds heat fast, good for hot water convectors and radient systems.

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