Piping Systems Flashcards
1
Q
Direct Return
A
First in, First out (FIFO)
2
Q
Reverse Return
A
Last in, First out (LIFO)
3
Q
What is the pipe pressure loss formula?
A
1 PSI = 2.31 FT HD
4
Q
Series Loop
A
one pipe
5
Q
Monoflow
A
one pipe distribution main with branches for each unit
6
Q
Primary Only
A
The primary loop uses a constant speed pump to circulate the working fluid (water).
7
Q
Primary Secondary
A
Use a common pipe. separate pumps installed in secondary circuit to establish flow. Uses law of the tee to determine the flow rate and direction of flow.
