VTE
VTE 3
VTE 6
VTE 8
VTE 10
A
B
P
Q
N
C
E
F
F
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d
Operating Instructions
Vacuum pumps
Pump ranges
These operating instructions concern the following dry running
rotary vane vacuum pumps: Models VTE 3
➝
VTE 10.
The pumping curves showing capacity against pressure can
be found in data sheet D 187.
Description
All models are complete with a pipe connection on the inlet
and an exhaust silencer on the outlet. All the air handled is
filtered by a built-in micro-fine filter. The motor fan cools the
motor and pump housing. Both the motor and pump have a
common shaft.
Optional extras: As required, vacuum regulating valve (ZRV),
non return valve (ZRK) and motor starter (ZMS).
Suitability
The units VTE are suitable for the use in the indus-
trial field i.e. the protection equipments corresponds
to EN DIN 294 table 4, for people aged 14 and above.
The VTE can be used for the evacuation of a closed system or
for a permanent vacuum from: 150 to 1000 mbar (abs.)
The ambient and suction temperatures must be
between 5 and 40° C. For temperatures outside this
range please contact your supplier.
These dry running vacuum pumps are suitable for use with air
of a relative humidity of 30 to 90%.
Dangerous mixtures (i.e. inflammable or explosive
gases or vapours), extremely humid air, water va-
pour, aggressive gases or traces of oil and grease must
not be handled.
The standard versions may not be used in hazardous areas.
All applications where an unplanned shut down of
the vacuum pump could possibly cause harm to
persons or installations, then the corresponding safety backup system must be installed.
Handling and Setting up (pictures
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Pumps that have reached their operating temperature, may have on the VTE 6 and VTE 8 a surface temperature,
at position (Q) of more than 70° C. WARNING! Do Not Touch.
There must be a minimum space of 20 cm in front of the housing cover (d) for servicing. The cooling air entries (E)
and the cooling air exits (F) must have a minimum distance of 8 cm from any obstruction. The discharged cooling air must
not be recirculated.
The VTE pumps can only be operated reliably if they are installed horizontally. Other built-in positions on
request.
For installations that are higher than 1000 m above sea level there will be a loss in capacity. For further advice
please contact your supplier.
Installed on a solid base these pumps may be installed without fixing down. If the pumps are installed on a base plate we
would recommend fitting anti-vibration mounts. This range of vacuum pumps are almost vibration free in operation.
Installation (pictures
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For operating and installation follow any relevant national standards that are in operation.
1. Vacuum connection at (A).
The air handled can be exhausted into the atmosphere through the exhaust port (B) or by utilising a pipe connection and
pipeline.
Long and/or small bore pipework should be avoided as this tends to reduce the capacity of the pump.
2. The electrical data can be found on the motor data plate (P). The motors correspond to DIN/VDE 0530 and have IP 54
protection and insulation class B or F. The connection diagram can be found in the terminal box on the motor (unless a
special plug connection is fitted). Check the electrical data of the motor for compatibility with your available supply
(voltage, frequency, permissible current etc.).
3. Connect the motor via a motor starter. It is advisable to use thermal overload motor starters to protect the motor and
wiring. All cabling used on starters should be secured with good quality cable clamps.
We recommend that motor starters should be used that are fitted with a time delayed trip resulting from running beyond
the amperage setting. When the unit is started cold overamperage may occur for a short time.
The electrical installation may only be made by a qualified electrician under the observance of EN 60204. The
main switch must be provided by the operator.
BE 187
1.7.99
Werner Rietschle
GmbH + Co. KG
Postfach 1260
79642 SCHOPFHEIM
GERMANY
076 22 / 3 92-0
Fax 076 22 / 39 23 00
E-Mail: [email protected]
http://www.rietschle.com
Rietschle (UK) Ltd.
Bellingham Way
NEW HYTHE
KENT ME20 6XS
UNITED KINGDOM
016 22 / 71 68 16
Fax 016 22 / 71 51 15
E-Mail: [email protected]
http://www.rietschle.co.uk
