Chapter 3 Installation
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When the flowmeter is
installed, the inner diameter of
sealing washers shall be
slightly larger than that of the
pipe to aviod interference to
the fluids in the pipe.
3.6.3. Installation of flowmeter
(1) Installation direction
The flow direction of the measured fluid shall be consistent with flow direction mark
indicated on the flowmeter.
(2) Washers installed between flanges shall have good corrosion resistance and
shall not protrude into the interior of the pipe.
(3) When welding or flame cutting is performed adjacent to sensor pipe, isolation
measures shall be taken to prevent the lining from being deformed due to heat.
(4) If it is installed in a well or immersed in water, apply sealant on the terminal box
of the sensor after the system is installed and debugged. (If the protection level of
the electromagnetic flowmeter is IP68 at type selection, it has been subject to
water-proof sealing.)
(5) When the flowmeter is installed on the field, use bolts to connect the flange on
the sensor to that on the pipe. Bolts, nuts and their threads for securing meters
shall be complete and free of damage and well lubricated. Use them with suitable
flat washers and spring washer. A torque wrench shall be used to tighten the bolts
according to the flange size and torque. Regularly tighten the bolts during daily use
to prevent looseness of the bolts.
Flange Nut Seal washer Bolt
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