STRAIGHT PIPE RUN REQUIREMENTS
Proper operation and performance is dependent on the required lengths of unrestricted upstream and downstream piping .
The minimum length of the upstream side of the COIN Flow Element depends on the type of fitting at the start of the straight
run, and the pipe configuration . See
. The minimum lengths will cause a slight coefficient shift .
Figure 1: Piping requirements
1 . For upstream and downstream lengths equal to one half the values shown above, add 1 percent to the accuracy value .
2 . Any flow conditioner shall be installed in the straight length between the primary element and the upstream distance, or
the fitting closest to the element . The straight lengths between fitting and conditioner shall be at least 10D and the length
between conditioner and COIN meter shall be at least 15D .
3 . For other fittings or configurations, contact the factory .
Straight Pipe Run Requirements
Page 6
March 2016
DPM-UM-00519-EN-04
