
ONICON Incorporated 727-447-6140
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SYSTEM-40 BTU MEASUREMENT SYSTEM
A
C
A
B
F
D & E
A. This is a recommended position for the flow sensor.
B. Avoid installation locations where air can become trapped in the piping system.
C. This is an acceptable installation location for closed loop pressurized systems.
D. Do not install the sensor downstream of modulating valves or partially open
valves. Fully open isolation valves (e.g. ball valves) are acceptable.
E. Do not install the sensor at the inlet of a pump. To prevent cavitation, the
minimum operating pressure at the inlet of the meter must always exceed the
pressure drop across the sensor.
F. Avoid installing the sensor downstream of multiple bends out of plane where
there are less than 10 diameters of straight unobstructed pipe between bends.
3.3.2 Installing the Flow Meter
FLOW
FLOW