Service Manual # 67
Page 7 of 36
Section 5: Magnet Temperature Limitations
Standard pumps are supplied with magnets constructed of Neodymium-Iron-Boron. These magnets
cannot exceed a maximum temperature of 250° F (120° C). Operation above the maximum
temperature will result in a permanent reduction in magnet strength. Samarium-Cobalt magnets are
available as an option and have a maximum temperature rating of 500° F (260° C). Generally, all
magnets subjected to temperatures above their maximum rating will lose a portion or all of their
magnetic strength.
To prevent damage to the magnets, use of a temperature sensor is recommended. Refer to Section
6: Optional Equipment for further details.
Section 6: Optional Equipment
Sensing equipment must be installed to immediately shut down the system when any abnormality
is detected.
Secondary Control
This feature converts the outer pump adapter into a secondary control chamber. In the
event of fluid leakage from the primary chamber, this option provides a temporary backup
system for preventing leakage into the environment, with proper sensing devices. Use of
secondary control is recommended when handling hazardous or toxic fluids. Secondary
control cannot be expected to contain pressure or significant fluid loss.
Provided with this option are two tapped ports in the outer pump adapter, which will
accommodate various sensors:
•
Leak Sensor
- Installed into the lower tapped port, it monitors for fluid within the
secondary containment chamber to indicate inner canister failure.
•
Temperature Sensor
- Installed into the upper tapped port, it monitors canister
temperature to help prevent magnet damage due to excessive heat.
•
Cooling Jacket
- Utilizes both tapped ports and the secondary control chamber to
disperse heat from the canister and magnets.
Pumps must be inspected weekly to verify the integrity of the secondary control feature.
More frequent inspection may be necessary, dependent on the specific application.
Bracket Access
This option incorporates two access holes in the pump bracket to provide a direct passage
to the inner magnet for use as follows:
•
Pressure Sensor
- monitors pressure in the inner canister.
•
Flush
- allows for flushing of canister chamber.
•
Drain
- allows for draining of canister chamber.
Summary of Contents for 6000
Page 28: ...Service Manual 67 Page 28 of 36 Figure 3 Typical 6110 Series Pump ...
Page 29: ...Service Manual 67 Page 29 of 36 Figure 4 Typical 7110 Series Pump ...
Page 30: ...Service Manual 67 Page 30 of 36 Figure 5 Typical 6200 Series Pump ...
Page 31: ...Service Manual 67 Page 31 of 36 Figure 6 Typical 6210 Series Pump ...
Page 32: ...Service Manual 67 Page 32 of 36 Figure 7 Typical 6300 7200 8200 Series Pump ...
Page 33: ...Service Manual 67 Page 33 of 36 Figure 8 Typical 6310 7210 8210 Series Pump ...
