13
03
Installation
Manual 4804 Rev C p/n 004804 0000
SEALANT SOLENOID VALVE: Used to establish
sealant
À
ow (open) when motor is energized, and
return to closed position when motor is de-energized.
FLOW CONTROLLERS: Used to establish the
sealant
À
ow rate to the vacuum pump and shaft
seals. Recommended
À
ow controllers are shown in
Table 3-1 on page 11
.
SEALANT CIRCULATING PUMP: Used to circulate
recovered sealant. Required for use when operating
at high pressure such as frequent cycling, or when
operating for prolonged periods above 400 Torr
(533.28 mbar).
STRAINER: Used to
¿
lter solid particles from the
sealant.
HEAT EXCHANGER: Used to cool circulated sealant.
INLET AIR EJECTORS
An air ejector may be added to the inlet of a
liquid ring vacuum pump to provide an additional
pumping stage. The air ejector can achieve
signi
¿
cantly lower pressure than is possible with
the compound liquid ring pump alone, with no
increase in horsepower. The operation of the air
ejector is similar to that of a water eductor except
that ambient air or recirculated discharge gas is
used to provide the motive force for compressing
the process gas from system pressure to the liquid
ring pump inlet pressure. The liquid ring pump
handles both the process gas and the motive gas.
With an air ejector, a suction pressure as low as
3 Torr (3.99 mbar) can be achieved. Using an air
ejector, the pumping capacity between cut-in and
10 Torr (13.33 mbar) is about 60% of the pumping
capacity at 100 Torr (133.32 mbar), without the air
ejector. To increase the pumping capacity above
30 Torr (39.99 mbar), an air shut-off valve may
be added. To achieve the full pumping capacity of
the liquid ring pump above 30 Torr (39.99 mbar),
a valved bypass may also be added. The inlet air
ejector can be combined with a liquid ring pump in
three ways:
• Air ejector only.
• Air ejector with motive air shut-off valve (manual
or solenoid).
• Air ejector with motive air shut-off valve and
bypass manifold with valve.
The standard air ejector is cast iron with a series
300 stainless steel nozzle. All stainless steel
ejectors are available upon request.
Figure 3-5 – Air Ejector
Figure 3-6 – Air Ejector Installation
Содержание KLRC Series
Страница 6: ...iv Table of Contents Manual 4804 Rev C p n 004804 0000 ...
Страница 33: ...27 08 Reassembly Manual 4804 Rev C p n 004804 0000 Figure 8 2 Bearing Driver Tool ...
Страница 34: ...28 08 Reassembly Manual 4804 Rev C p n 004804 0000 Figure 8 3 Foot Alignment Tool ...
Страница 37: ...31 09 Troubleshooting Manual 4804 Rev C p n 004804 0000 NOTES ...
Страница 38: ...32 Parts Lists and Assembly Drawings Manual 4804 Rev C p n 004804 0000 CROSS SECTION KLRC 40 AND KLRC 75 ...
Страница 42: ...36 Parts Lists and Assembly Drawings Manual 4804 Rev C p n 004804 0000 CROSS SECTION KLRC 125 TO KLRC 525 ...
