Finish Thompson UC - Manual (Page 17)

17
HELPFUL HINTS
Do not pump liquids containing ferrous metal fines.
If magnets de-couple, stop the pump immediately. The rare earth
magnets used in this pump are more resistant to demagnetization,
but operating the pump with the magnets de-coupled will eventually
weaken the magnets.
A power monitor is strongly recommended. This device will
help protect the pump against abnormal operating conditions
such as dry running, magnet de-coupling, cavitation, etc.
Power monitors are required and must be used with all ATEX
certified pumps.
The setting of the drive magnet dimension is critical. Failure to
properly set the dimension may result in de-coupling or damage
to pump components.
Do not use mismatched drive magnet assemblies (impeller drive
magnet and the outer drive magnet assembly). The drives are
marked with either an “A” or “B”. Use only components with the
same drive letter designation. A serial number plate is attached
to the motor adapter section.
Call our toll free Technical Service Hot Line, 1-800-888-3743, if
you have any questions regarding product operation or repair.
ORDERING SPARE PARTS
Spare parts can be ordered from your local distributor. Always
refer to the pump model number to avoid error.
OTHER FINISH THOMPSON PUMP PRODUCTS
Drum Transfer Pumps are available in sanitary construction, Stain-
less steel, polypropylene and CPVC. Flows to 40 gpm, Discharge
heads to 300 feet and viscosities to 100,000 cps.
Portable Mixers for turbine mixing and blending handle viscosities
to 1,000 cP with gentle, non-vortexing circulation. Available in 316
stainless steel construction.
Centrifugal Pumps in polypropylene, PVDF, stainless steel, or
Hastelloy C come with a wide variety of sealing materials. Flows
to 330 gpm, discharge heads to 275 feet, and temperatures to
220°F (104°C)
For more information contact Finish Thompson Inc. Call our toll
free Technical Service Hot Line, 1-800-888-3743, if you have any
questions regarding product operation or repair.
TROUBLESHOOTING
NO OR INSUFFICIENT DISCHARGE
•
Air leaks in suction piping.
• Pump not primed.
• Discharge head higher than anticipated.
• Closed valve.
• Viscosity or specific gravity too high (magnets uncoupled).
• Suction lift too high or insufficient NPSH.
• Clogged suction line or impeller vanes.
• Motor rotation incorrect (correct rotation when viewed from
the fan end is clockwise).
INSUFFICIENT PRESSURE
•
Air or gas in liquid.
• Impeller diameter too small.
• System head lower than anticipated.
• Motors speed insufficient (too low) or motor rotation incorrect
(correct rotation when viewed from the fan end is clockwise).
LOSS OF PRIME
•
Leaking suction line.
• Foot valve or suction opening not submerged enough.
• Foot valve too small or leaking.
• Air or gas in liquid.
• Foreign matter in impeller.
• Leaking valve. Suction lift too high or insufficient NPSH.
EXCESSIVE POWER CONSUMPTION
•
Head lower than rating.
• Excessive flow.
• Specific gravity or viscosity too high.
VIBRATION/NOISE
•
Loose magnet.
• Drive magnet rubbing.
• Pump cavitation from improper suction or feed.
• Motor or piping not properly secured.
• Foreign object in impeller.
CHEMICAL REACTION DISCLAIMER
The user must exercise primary responsibility in selecting the
product’s materials of construction, which are compatible with the
fluid(s) that come(s) in contact with the product. The user may
consult Finish Thompson, Inc. (manufacturer) and a manufacturer’s
representative/distributor agent to seek a recommendation of the
product’s material of construction that offers the optimum available
chemical compatibility.
However neither manufacturer nor agent shall be liable for product
damage or failure, injuries, or any other damage or loss arising out
of a reaction, interaction or any chemical effect that occurs between
the materials of the product’s construction and fluids that come
into contact with the product’s internals.
IMPORTANT NOTICE
U.S. Export Administration Regulations, pursuant to ECCN
2B350, prohibit the export or reexport to certain enumerated
countries of sealless centrifugal pumps in which all wetted ma-
terials are constructed from fluoropolymers without first apply-
ing for and obtaining a license from the U.S. Bureau of Industry
and Security (BIS). This affects all Finish Thompson magnetic-
drive pumps constructed from PVDF or lined with ETFE. Please
contact the BIS (www.bis.doc.gov) or Finish Thompson with
questions regarding the Regulations or a list of the countries to
which they apply.