M & MA Series Meters
22
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Maintenance Requirements
PRIOR TO METER DISASSEMBLY
Failure to follow this pre-disassembly procedure could result in property damage,
personal injury, or death.
Before disassembly of any meter or accessory component:
·
All internal pressures must be relieved and all liquid drained from the system in
accordance with all applicable procedures.
·
Pressure must be 0 (zero) psi.
·
Close all liquid and vapor lines between the meter and liquid source.
For applicable safety rules, refer to local authorities and relevant NFPA Codes.
Liquid Controls disclaims all liability for damage to meter or accessories because of
corrosion, salting out of product, or separation of chemicals whether occurring during
periods of use or storage.
Ensure that you are mindful of the following when performing maintenance on the meter:
·
PREVENT PIPE STRAIN OR STRESS – Prevent pipe strain or stress from occurring
when making meter or accessory repairs. Pipe strain and stress occurs when the pipes
are not supported or are not aligned correctly to the meter. The weight of the pipes must
always be supported independent of the meter. This means that the meter and
accessories can be easily removed without affecting the pipes or the pipe alignment.
Never leave any of the pipes hanging.
·
SEASONAL METER STORAGE – If the meter is used for seasonal work, the meter
should be removed from the system and thoroughly flushed with a compatible liquid at the
end of each season. To flush the meter, remove the drain plug on the front and rear
covers. Then flush the product from the front and rear covers. If flushing with water, extra
care should be taken to drain the meter completely and dry all internal parts. Refill the
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