Re: Using Type M 1/2" copper pipe in a heating system.

Posted by Bud...Suncoast Plumbing on June 04, 1998 at 18:06:33:
In response to Re: Using Type M 1/2" copper pipe in a heating system.
Ralph:...As you know, copper pipe is supplied in three grades.."K"-"L"-and "M" they may be termed "Good-Better-and Best". In this order , "M" is a very acceptable material for all general purpose applications. If the pipe is to be buried under concrete or in an otherwise inaccessible area, prudence dictates that a more durable (thicker) grade be considered. Type "K" copper is the product of choice on jobs where price is not a consideration (City-County-State or Federal jobs) A few years ago(25?) there was a grade of copper called "Distribution Copper", and had a white stripe on it for identification. This type of piping is no longer manufactured (to my knowledge) because of many early failures due to pin hole leaks......Bud..r

Posted by Bud...Suncoast Plumbing on June 04, 1998 at 18:06:33:

In response to Re: Using Type M 1/2" copper pipe in a heating system.

Ralph:...As you know, copper pipe is supplied in three grades.."K"-"L"-and "M" they may be termed "Good-Better-and Best".
In this order , "M" is a very acceptable material for all general purpose applications. If the pipe is to be buried under concrete or in an otherwise inaccessible area, prudence dictates that a more durable (thicker) grade be considered. Type "K" copper is the product of choice on jobs where price is not a consideration (City-County-State or Federal jobs)
A few years ago(25?) there was a grade of copper called "Distribution Copper", and had a white stripe on it for identification. This type of piping is no longer manufactured (to my knowledge) because of many early failures due to pin hole leaks......Bud..r

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