Specifications

Turbo-V Accessories
186
Inlet Screens
To prevent any possible damage to the pump blades caused by
particles falling into the pump, an inlet screen is available as an
accessory. The inlet screen is a curved stainless steel mesh. It
provides protection against debris larger than 0.7 to 3 mm
(depending on the model), while reducing the pumping speed
by only about 10%.
For ordering information, see individual pumps.
Heater Bands
To improve the attainable ultimate pressure in a vacuum system
as well as to shorten the pump down time, bakeout of the
chamber and the turbopump is recommended. To bake out the
Turbo-V pumps, heater bands are provided as an option. The
heaters are shaped to fit the upper part of the pump envelope
and automatically heat up to a temperature of about 80 °C.
The required bakeout time is a function of the degree of
contamination of the system and the desired base pressure.
For ordering information, see individual pumps.
Air Cooling Kits
A fan is provided as an option for applications requiring forced air
flow. The fan is easily installed using the included installation kit.
The air cooling kit for the Turbo-V81’s can be mounted
beside or underneath the pump body. The fans for all the other
pump models can be installed in a side location only.
The maximum allowable ambient temperature for an effective
cooling action is 30 °C. To meet the air flow rate specifications,
care must be taken not to restrict or cover the space around the
fan so that air can flow freely. The operation of the cooling fan
is controlled by the Turbo-V controller.
For ordering information, see individual pumps.
Water Cooling Kits
A water cooling kit is provided to cool the pump when
operating at high inlet or high exhaust pressures. The kit is
available for the Turbo-V301, 551, 701 and 1001 Navigator, and
3K-T pumps. The cooling water can be supplied by an open
circuit with drainage or a closed-loop refrigerated system.
Care must be taken to secure the tubes to ensure that they do
not detach during operation. Four different kits with various tube
sizes are available (refer to the following table).
Tube Size Material Screw Thread Part Number
4 x 6 mm (ID x OD) Plastic
1
⁄
8
BSP 9699347
6 x 8 mm (ID x OD) Plastic
1
⁄
4
BSP 9699348
1
⁄
4
” ID SST
1
⁄
8
BSP 9699337
3
⁄
8
” ID SST
1
⁄
4
BSP 9699338
For ordering information, see individual pumps.
Vibration Dampers
Highly sensitive equipment such as an electron microscope
and certain analytical instruments require extremely low
vibration amplitudes. The dampers reduce turbopump
vibration amplitude by at least a factor of 10
at their main frequencies.
They are available up to a size of 200 mm (ISO 200 or
CF 10” O.D.). To effectively decouple the equipment from
the pump, the vibration damper must be installed between
the connecting flanges.
For ordering information, see individual pumps.
H (mm) H (inches)
Vibration Damper 4
1
⁄
2
” CF 96.5 3.80
Vibration Damper 6” CF 101 3.97
Vibration Damper 8” CF 110 4.33
Vibration Damper 10” CF 113 4.45
Vibration Damper 63 ISO 84 3.31
Vibration Damper 100 ISO 84 3.31
Vibration Damper 160 ISO 88 3.46
Vibration Damper 200 ISO 88 3.46
Turbo-V Vent Valve
The Turbo-V Vent Valve, consisting of a control unit and a
valve, is a complete unit for automatic venting of the Turbo-V
pump when it is switched off or during a power failure. The
valve is a normally open, electromagnetically-actuated valve
with a filter on the air inlet. The control unit is powered by
the Turbo-V controller and is provided with a fixed delay time
of about 5 seconds to avoid undesired venting during a
temporary power failure and to allow closure of the system
valves before venting.
For ordering information, see individual pumps.
Turbo-V Vent Device
To control the venting of the Turbo-V pumps when they are
switched off or during a power failure, a vent device is offered.
The Turbo-V vent device consists of a normally closed valve
and a control unit. The valve is electromagnetically-actuated
and has a filter on the air-inlet. The control unit is powered
by the Turbo-V controller and has a built-in battery backup.
Delay and venting times are adjustable up to 36 minutes to
optimize the venting conditions for each application.
For ordering information, see individual pumps.
H
Vibrator Damper Drawing