C
G
T
T
C
L
A
1
B
F
E
E
B
F
A
2
A
1
E
F
F
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S
D
S
A
2
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D
Pump Ranges
These operating instructions concern the following dry running rotary vane pres-
sure/vacuum pumps model TR 20 DVV (20)
➝
(picture
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) and TR 81 DVV (33),
(34)
➝
(picture
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).
They have nominal capacities of 20 and 80 m
3
/hr on 50 cycle operation. The vacuum
and pressure limits are indicated on the data plate (N).
Description
All models have two vacuum and one pressure port. All vacuum air is filtered by a
built in micro fine filter. Carbon dust which is the result of the carbon blades wearing
is also separated by built in filters. On the TR 20 DVV the pump is cooled by a motor
fan. The TR 81 DVV has an additional cooling fan located between the motor and
the pump housing. Model TR 81 DVV (33) is complete with a cable connection and
plug, whereas version (34) is supplied with a standard terminal box. Both the motor
and pump have a common shaft.
Pressure and Vacuum can be adjusted to the required levels however they are
limited to a maximum point.
Optional extras: As required, non-return-valve (ZRK), motor starter (ZMS) and
pipe connections (ZSA).
Suitability
The units TR...DVV are suitable for the use in the industrial field i.e. the protection equipments corresponds to EN DIN 294 table
4, for people aged 14 and above.
The models TR...DVV produce simultaneously pressure and two different vacuum levels between 0 and the maximum limits, which are shown
on the data plate (N). They may be operated continuously.
The ambient and suction temperatures must be between 5 and 40° C. For temperatures outside this range please contact your
supplier.
These dry running pressure/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 vapour, 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 pressure/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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,
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and
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)
Pumps that have reached operating temperature may have a surface temperature at position (Q) of more than 70°C. WARNING! Do
Not Touch.
If pumps are built-in there must have a minimum distance of 30 cm in front of inlet filter (S), exhaust filter (T), housing cover (G) and greasing
point (L) for servicing. The cooling air 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 recirculated.
The TR...DVV 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. 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 pressure/vacuum pumps are almost vibration free in operation.
Installation (picture
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)
These units must not be operated without the standard pressure and vacuum regulating and limiting valves fitted so that the
maximum pressure or vacuum is not exceeded (see data plate).
For operating and installation follow any relevant national standards that are in operation.
1. Vacuum connections at (A
1
)
➝
higher vacuum and at (A
2
)
➝
lower vacuum (second vacuum); pressure connection at (B).
Long and/or small bore pipework should be avoided as this tends to reduce the capacity of the pressure/vacuum pump.
2. The electrical data can be found on the data plate (N) or the motor data plate. 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 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.
