KSM
2000
OIL DIFFUSION EJECTOR PUMP
|
 |
Features
- High Throughput: 2500 liters
/ second at 10-3 Torr range.
- Efficient Heat Transfer:
replaceable immersion heaters reduce heat loss
- Oil Temperature monitor
- Foreline Ejector stage
allows operation at higher pressures (up to 1 Torr)
|
- Fast Pump Down Times
- Cooling and quench coils
- Optional Boiler Insulation
Jacket
- Oil Sight level
|
Applications
The KSM-2000 is a three
stage high vacuum (10-3 to 10-4 Torr range)
vapor pump designed for heavy gas load applications such as in
vacuum distillation, evaporation, vacuum arc melting, freeze drying,
impregnation and casting of metals. The pump has no moving parts
which may be corroded by the acidic nature of the material being
pumped. These pumps may be used in place of mechanical roots type
blower pumps.
Description
The KSM-2000 is a three
stage vapor pump whose diffusion and ejector nozzles are supplied
from a common electrically heated boiler.
Two
umbrella type vapor stages, positioned in the vertical column,
have nozzles through which jets of vapor are emitted to entrain
the gas entering the pump inlet. The compressed gas is then passed
on to the ejector stage in the horizontal convergent divergent
arm of the pump.
The pump achieves a
peak operating pumping speed of 2500 liters/second at 10-3
Torr and has an ultimate pressure in the 10-4 Torr
range. The ejector stage is operated at a sufficiently high boiler
pressure to handle gas loads in the 10-1 Torr pressure
range and also provides a forepressure tolerance of greater than
1 Torr.
The pump comes equipped
with water-cooling lines with disconnect fittings and vacuum flanges
which allows for easy maintenance disassembly. On board oil temperature
and oil level indicators allow for ease of system monitoring during
operation. Quench lines in the boiler provide rapid cooling of
oil when systems operation is stopped (these connections are standard
¾" allowing for use of standard water hoses for temporary connection
when needed). The external boiler which supplies the vapor is
equipped with replaceable blade type immersion heaters.
An optional thermal
jacket is available for the boiler housing. This will reduce heat
loss and power consumption during operation. It is attached using
high temperature Velcro strips. This allows for easy removal to
avoid contamination by cleaning solvents and oil during maintenance.
Specifications
| Inlet
connection |
Flange
|
|
- O.D. |
19"
|
|
- I.D. |
12"
|
|
- Thickness |
1-1/4"
|
|
- Bolt circle |
17"
|
|
- No. of holes |
12 |
|
- Hole diameter |
1"
|
|
- Gasket Groove O.D. |
13-3/4"
|
|
- Gasket Groove I.D. |
13"
|
| Outlet
connection |
Flange
|
|
- O.D. |
9"
|
|
- I.D. |
3-7/8"
|
|
- Thickness |
5/8"
|
|
- Bolt circle |
7-1/2"
|
|
- No. of holes |
8 |
|
- Hole diameter |
3/4"
|
|
- Gasket Groove O.D. |
6-1/8"
|
|
- Gasket Groove I.D. |
5-3/8"
|
| Cooling
Connections |
3/8" FPT (Boiler
is 3/4"FPT) |
| Mounting
Holes |
4-1" dia.
on 24x20" centers |
| Maximum
Width |
28-3/4 st sight glass |
| Space
for heater removal |
38"
|
| Heater
Voltage (Rated) |
240, 480,
or 550v, 3ph.(as requested by customer) |
| Heater
Wattage (Rated) |
12000w
|
| Pump Fluid
(Quantity) |
10 gal.
|
| Net weight
|
780 lbs.
|
| Shipping
weight |
930 lbs.
|
| Recommended
backing pump speed |
130 cfm
|
| Plateau speed (liters per
second) |
2500
|
Typical
air throughput In pumpdown range
(Torr-liters per second) |
40
|
| Backing
speed required for highest throughput time (cfm)
|
300
|
| Warm-up
time (minutes) |
60
|
| Cooling
water - temp. º in |
20
|
| Cooling
water - temp. º out |
45-55
|
| Nominal cooling rate (gallons
per minute) |
1.5
|
| Recommended
forepump (cfm) |
220
|
| Cool-down time to 100º C
(using quench coils) |
60
|
|
All
data obtained with Convoil-20 pump fluid. Pumping speed
measured with Convoil 20 diffusion pump.
|
Ordering information for the components mentioned
on this page is listed below.
| ITEM
|
DESCRIPTION
|
P/N
|
| KSM-2000
|
Diffusion
ejector pump cr. stl., water-cooled 3ø, 12KW, 230V. Immersion
heater. |
500385
|
| KSM-2000
|
Jet assembly
|
500361
|
| Replacement
heaters |
for
KSM-2000, 240/480V, 12 KW, 3 Phase On 6" ASA Flange |
500375
|
| Insulation
Jacket |
Removeable
Thermal Jacket for boiler housing |
500383 |