3
ECNO: 622
•
The piping must be filled with fluid which is free from air bubbles and foreign objects.
•
Straight piping greater than 10D must exist on the upstream side and greater than 5D
on the downstream side.
•
Elements (pump, valve, etc) on the upstream side must be greater than 30D away to
prevent disturbances.
(1) Necessary straight pipe length
2. CONDITIONS OF DETECTOR MOUNTING POSITIONS
Detector
Flow control valve exists on upstream side.
Flow control valve exists on downstream side.
More than
0.5D
More than
10D
More than
10D
D
Check valve
P
Stop valve
More than 10D
90
°
bend
Tee
Diffuser
Reducer
Valves
Pump
Classification
For upstream side
For downstream side
