Owner manual

PIPING CONFIGURATION
PARTIALLY FULL PIPE SITUATIONS
Magnetoflow
®
meters are designed to operate in closed, full
pipes.
It is relatively common to encounter situations where the
process pipe will remain momentarily partially filled due to
certain hydraulic conditions. Examples of this include dis-
charge to the atmosphere (lack of back pressure), insuffi-
cient line pressure, gravity flow applications, etc. (see figure
above)
To eliminate the negative effect of these situations on the
performance of Magnetoflow® meters, a few guidelines
should be observed:
· Avoid installing the detector in the highest point of
the pipe line.
· Do not install the detector in vertical, downward flow
sections of the pipe.
· On-Off valves should ALWAYS be located on the
downstream side of the detector.
· Select the recommended vertical orientation when
ever possible.
· Make sure the selected detector size complies with
the application flow rate. Do not oversize pipe line
and detector size.
3
WRONG
RIGHT
FLOW
FLOW
FLOW
WRONG
FLOW
RIGHT
(ANY POSITION)
STRAIGHT PIPE RUN
PUMP
CHECK VALVE
NEEDLE VALVE
GLOBE VALVE
(FULLY OPENED)
GATE VALVE
BALL VALVE
TEE
ELBOW
NO PUMPS
ANY VALVE
TEE
NO REQUIREMENT
PIPE REDUCERS
5-7 D
2 D3 D
ELBOW
UPSTREAM
DOWN STREAM