６Ｆ８Ａ０８７０
(3) Flow Direction
Install the detector in accordance with the flow direction arrow on the detector. See Figure 4.7.
Flow direction arrow
Figure 4.7 Flow direction arrow on the detector
(4) Preventing an Empty Pipe Condition
Design an upright pipe run (Figure 4.8) or sufficient head pressure (Fig. 4.9) at the downstream detector outlet if there is a possibility of the detector pipe becoming emptied.
Vertical pipe run
Detector
Figure 4.8 Detector with an upright pipe run at downstream outlet
Detector
Figure 4.9 Detector with sufficient head pressure at downstream outlet