Publicidad
Idiomas disponibles
Idiomas disponibles
Pump ranges
These operating instructions concern the following dry running
rotary vane vacuum pumps: Models VLT 6 to VLT 60.
The vacuum capacities at atmosphere are 6, 10, 15, 25, 40 and
3
60 m
/hr operating on 50 cycles. The pumping curves which
show capacity against pressure, can be found in data sheet
D 280.
Description
All models are complete with a vacuum connection and an
exhaust silencer on the outlet. All the air handled is filtered by
a built-in micro-fine filter.
Both the motor and pump have a common shaft.
The VLT (01) to (11) are partially enclosed in a rugged black
plastic sound enclosure. The cooling fan is located inside the
sound enclosure (pictures
The VLT (13) to (50) are located in a sheet metal cover. The
motor fan provides the cooling (pictures
The VLT (14) has on the pressure side a vent valve (D) (picture
).
The VLT (02) and (13) have as standard a vacuum regulating
valve (C), which can be adjusted to the level required, however
it is limited to a maximum point (pictures
Optional extras (as required): Vacuum regulating valve (ZRV), non return valve (ZRK), motor starter (ZMS) and pipe connection (ZSA).
Directed Suitability
The units VLT are suitable for use in the industrial field i.e. the protection equipment corresponds to EN DIN 294 table 4.
The VLT can be used for the evacuation of a closed system or for 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 %.
Warning – Suction of explosive gases
Any non compliance may lead to severe injury to persons and damage to the pump may occur!
Dangerous mixtures (i.e. inflammable or explosive gases or vapours), extremely humid air, water vapour, aggressive gases or traces of oil and
grease must not be handled.
The standard versions may not be used in hazardous areas.
Caution – Do not exceed the temperature
At non compliance severe damage may occur on the pump.
The ambient and suction temperatures must be between 5 and 40° C.
Caution – Noise Emission
Potential risks for operating personnel.
When working permanently in the vicinity of an operating pump, we recommend wearing ear protection to avoid any damage to hearing.
Setting up
Warning – hot surfaces
Pumps that have reached operating temperature may have a surface temperature at position (Q) of more than 70 °C.
Do not touch these hot surfaces (see also warning signs)!
There must be a minimum space of 30 cm in front of the exhaust grid (G), suction grid (G
entries (E) and the cooling air exits (F) must have a minimum distance of 10 cm from any obstruction. The discharged cooling air must not be
re-circulated.
Note
The VLT pumps can only be operated reliably if they are installed horizontally.
For installations that are higher than 1000 m above sea level there will be a loss in capacity.
When the pumps are installed on a solid base, they do not need to be fixed 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
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.
Note
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 data plate (N) or the motor data plate (P). The motors correspond to DIN/VDE 0530 and have IP 55
protection and insulation class 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 plug-connector (J ➝ pict.
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.
Warning – electrical installation
Danger to life through unprofessional electrical installation!
The electrical installation should only be made by a qualified electrician under the observance of EN 60204. The main switch must be provided by
the operator.
and
).
and
).
and
).
) if fitted or via a relevant direct on-line motor starter. It is advisable to use thermal overload
J
) and housing cover (b) for servicing. The cooling air
1
- 2 -
VLT (0265 / 0279)
C
Publicidad
