Fuel Meter
2 |
P a g e
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liquid from inlet side, to show the outlet pressure, the bottom rotor has no rotating torque even it
effected the liquid pressure, but the above gears will move by the rotating pressure. ln the status of the
above gears driving gear, and the bottom gear is driven gear.
Both of these two gears have rotating torque by the liquid press u/'e, and they move with the direction
of the arrow to space. The gear space is opposite to, the bottom gear is driving gear, and above gear is
driven gear. The bottom gear pushes the liquid out from the half-moon space under the liquid press
pushes liquid volume four times of "measurement room". So, as long as the rotation of gears, the liquid
volume can be counted.
4.
Installation Guide
1.
Flow Meter should be cleaned before installing pipes. If the liquid containing solid particles in the
upstream of the pipe, you must install filters. Only when the flow meter connected to the pipeline, can
you remove the interface on the piston to prevent debris from entering the meter
2.
No Specific requirements on the front and back of the flow meter pipeline, it can be installed horizontally
or vertically. During the installation, this oval gear flow meter axis of rotation should be parallel to the
ground. Please stick to the Picture 4
3.
The direction of the flow meter installation should be the same as shown in the direction of the arrow
with the liquid flow to the meter shell: installation position should pay attention to the ease of reading.
4.
The flow meter should be installed on the output end of the pump. If installed in the suction side, the
pressure loss of the flow meter filter will lead to the increase of the pump negative suction pressure, the
liquid at the outflow of the pump shaft also causes the flow meter error increases, the flange of the pump
suction side should be designed to prevent leakage, otherwise, it can also cause the error increases to the
flow meter.
5.
A filter should be installed at the front of the flow meter to prevent greater than 0.2mm tiny particles
blocking the flow meter and the filter should be easy to clean
6.
The flow meter is preferably mounted in front of the one-way valve only unidirectional flow of the liquid
within the pipe to prevent the reverse rotation of the counting gear
7.
The flow meter recommendations shown in Picture 5. The bypass valve can be installed in the vertical or
the other direction of the pipeline from the top down, from bottom to top, right to left from left to right
8.
When using the flow meter makes sure the internal filled with liquid. If the liquid to be measured mixed
with a gas otherwise the measured gas and liquid mixing volume it will cause the measurement in error
accuracy. If the liquid is mixed with gas and oil and gas separator must be installed.
9.
When the flow rate traffic exceeds the specified maximum flow the speed of the oval gear increased and
wear increases and the pressure loss increased dramatically and so it should be avoided though still
measured at below the minimum flow the error increases the viscosity of a liquid slow meter 10Pa.s start
the flow of about 1% of the maximum flow rate
10.
When the flow meter is out the factory were used on the 7th mechanical oil calibration under ambient
conditions the viscosity of the oil due to room temperature changes and about 13 Pa.s at room
temperature. Theoretical volumetric flow meter measuring viscosity of the liquid changes does not affect
the measurement accuracy because the measurement of the amount of leakage is generated in the gap,
