truflo TSMP Series, Инструкция по установке, эксплуатации и обслуживанию

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32 Revision 8 – November 2011
Pure or Purge Oil Mist Lubrication
Pure or purge oil mist are optional features for the Model
TSMP pump. Follow oil mist generator manufacturer’s
instructions. The inlet and drain connections (drain
connection required for pure mist only) are located on the
top and bottom, of the bearing housing. (See
Appendix I
for conversion from ring oil bearings to purge or pure mist
bearings.)
SHAFT SEALING
Mechanical Seal Option
Pumps may be shipped with or without mechanical seals
installed. The seal used with this model is the cartridge type.
Cartridge seals are preset at the seal manufacturer’s facility
and require no field settings. Cartridge seals installed by the
user require disengagement of the holding clips prior to
operation, allowing the seal to slide into place. If the seal
has been installed in the pump by Truflo, these clips have
already been disengaged. For other types of mechanical
seals, refer to the seal manufacturer’s instructions for
installation and setting.
The mechanical seal must have an appropriate seal
flush system. Failure to do so will result in excess heat
generation and seal failure.
Cooling systems such as those for bearing
lubrication, mechanical seal systems, etc., where
provided, must be operating properly to prevent excess
heat generation, sparks and premature failure.
Sealing systems that are not self purging or self
venting, such as plan 23, require manual venting prior
to operation. Failure to do so will result in excess heat
generation and seal failure.

Product Flushing -In this arrangement, the
pumped fluid is piped from the casing (and cooled in an
external heat exchanger when required) then injected
into seal chamber.

External Flush -A clean, cool compatible liquid
is injected from an outside source directly into seal
chamber. Flushing liquid must be at a pressure 20 to 25
psi (1.4-1.76 kg/cm) greater than seal chamber pressure.
Injection rate should generally be 2 GPM (8 LPM)
although the mechanical seal instructions indicate
proper amounts for given applications.
Connection of Sealing Liquid
For satisfactory operation, there must be a liquid film
between seal faces to lubricate them. Refer to seal
manufacturer’s drawing for location of taps. Some methods
which may be used to flush/cool the seal are:
NOTE: See Preventive Maintenance section for
lubrication recommendations.
2

Other methods may be used which make use of
multiple gland connections. Refer to
documentation supplied with the pump,
mechanical seal reference drawing, and piping
diagrams.
Pumps must be fully primed at all times during
operation.
Figure 14 shows the supply above the pump suction.
1-Slowly open the suction valve.
2-Open air vents on the suction and discharge piping,
casing, seal chamber, and seal piping, if provided, until all
air is vented and only liquid flows out.
3-Close all of the vents.
PRIMING PUMP