1/2 L copper has the same outer diameter as 1/2 K or M copper. The same applies to pipe schedules. As a result, a slight increase in pressure losses is realized due to a decrease in flowpath as wall thickness is increased. In other words, 1 foot of 1/2 L copper has slightly less volume than 1 foot of 1/2 M copper.
Definition of omega. 1  1 : the 24th and last letter of the Greek alphabet â see alphabet table. 2  2 : the extreme or final part : end.
In the Greek alphabet, Alpha is the first letter; it has a value of 1 in the Greek numerals system. Alpha bears a symbol that is similar to âAâ in the English alphabet. Omega is the 24th and last letter, and has a value of 80. It is symbolized by the majuscule letter Ã¢âÂ¦.