Operating Instructions
Vacuum pumps
These operating instructions concern the following dry running rotary vane vacuum pumps: Models VTA 60 to VTA 140.
Versions (01) to (30) have cooling exits from two sides (picture ) whilst versions (31) to (60) have cooling exits on one
side only (picture
).
The vacuum capacities at atmosphere are 60, 80, 100 and 140 m
show capacity compared to pressure can be found in data sheet D 250.
All models are complete with a vacuum connection and an exhaust silencer on the outlet. All vacuum air is filtered by a
built in microfine filter. If necessary the carbon dust which is the result of the wearing of the carbon blades can be
separated by builtin filters.
A high efficiency cooling fan is located between the pump housing and the motor. The pumping unit is encased in a rugged
black sound enclosure.
All the pumps are driven by a direct flanged three phase, standard TEFV motor via a pin and bush coupling.
Vacuum can be adjusted to the required levels, however, they are limited to a maximum point (see regulating valve (C)).
Optional extras: As required, non return valve (ZRK), inlet dust filter (ZFP), vacuum tight suction filter (ZVF), motor
starter (ZMS).
The VTA can be used for the evacuation of a closed system or for a permanent vacuum from: 150 to 1000 mbar (abs.).
These dry running vacuum pumps are suitable for use with air of a relative humidity of 30 to 90 %.
The standard versions may not be used in hazardous areas. Special versions with Exproof motors can be supplied.
3
/hr operating on 50 cycles. The pumping curves which
VTA
VTA 60
VTA 80
VTA 100
VTA 140
BE 250
1.6.2003
Postfach 1260
79642 SCHOPFHEIM
GERMANY
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Fax 0 76 22 / 39 23 00
email:
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http://www.rietschle.com
Bellingham Way
NEW HYTHE
KENT ME20 6XS
UNITED KINGDOM
0 16 22 / 71 68 16
Fax 0 16 22 / 71 51 15
email:
ukinfo@rtpumps.com
http://www.rietschle.co.uk