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Betriebsanleitung • Operating InstructionsP
K 0
15
6 B
E/G
(0
91
2)
Translation of the Original Operating Instruction
UnoLine™ Plus
BA 251/501
s
2
Table of contents
Table of contents
1 About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Validity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Proper use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Improper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Transport and storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1 Product identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.2 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.1 Setting up the pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.2 Connecting the vacuum side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.3 Connecting the exhaust side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.4 Connecting the cooling water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.5 Connecting to the mains power supply . . . . . . . . . . . . . . . . . . . . . . 12
5.6 Filling up the operating fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.7 Setting up ventilation or measurement connection . . . . . . . . . . . . . 16
5.8 Operating fluid level monitoring (option) . . . . . . . . . . . . . . . . . . . . . 16
6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.1 Before switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.2 Switching on the pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.3 Pumping condensable vapours . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.4 Switching off and venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.1 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.2 Changing the operating fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.3 Clean the cooling water chambers . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.4 Checking the "V" belt drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.5 Cleaning the gas ballast valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.6 Setting silencer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.1 Shutting down for longer periods. . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.2 Re-starting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
9 Malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9.1 Rectifying malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
10 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
11 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
11.1 Spare parts packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
11.2 Exploded view BA 251/501 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
12 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
13 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
13.1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
About this manual
1 About this manual
1.1 ValidityThis operating manual is for customers of Pfeiffer Vacuum. It describes the func-
tioning of the designated product and provides the most important information for
safe use of the unit. The description follows applicable EU guidelines. All informa-
tion provided in this operating manual refer to the current state of the product's de-
velopment. The documentation remains valid as long as the customer does not
make any changes to the product.
Up-to-date operating instructions can also be downloaded from
www.pfeiffer-vacuum.net.
1.2 Conventions
Safety instructions The safety instructions in Pfeiffer Vacuum operating manuals are the result of risk
evaluations and hazard analyses and are oriented on international certification
standards as specified by UL, CSA, ANSI Z-535, SEMI S1, ISO 3864 and DIN 4844.
In this document, the following hazard levels and information are considered:
DANGER
Immediate danger
Death or very severe injuries can occur.
WARNING
Possible danger
Injuries or severe property damages can occur.
CAUTION
Possible danger
Injuries or property damages can occur.
NOTE
Command or note
Command to perform an action or information about properties, the disregarding of which may result in damage to the product.
3
About this manual
Pictograph
definitions
Instructions in the
text
Work instruction: here you have to do something.
Symbols used The following symbols are used consistently throughout in all illustrations:
Vacuum flange
Exhaust flange
Gas ballast valve
Power connection
Prohibition of an action or activity in connection with a
source of danger, the disregarding of which may result in
serious accidents.
Warning of a displayed source of danger in connection
with operation of the unit or equipment.
Command to perform an action or task associated with a
source of danger, the disregarding of which may result in
serious accidents.
V
G
4
Safety
2 Safety
2.1 Safety precautions
• Do not expose any body parts to the vacuum.
• Observe the safety and accident prevention regulations.
• Check regularly that all safety precautions are being complied with.
• Do not carry out any unauthorised modifications or conversions to the pumps.
• Depending on the operating and ambient conditions, the surface temperature of
the pumps may rise above 70 °C. Use suitable finger guards if necessary.
• When returning the pumps to us please note the instructions in the Service sec-
tion.
2.2 Proper use
• The vacuum pump may only be used to generate a vacuum.
• Installation, operating and maintenance regulations must be complied with.
• Other accessories than those described in this manual must not be used without
the agreement of Pfeiffer Vacuum.
2.3 Improper useImproper use will cause all claims for liability and guarantees to be forfeited. Im-
proper use is deemed to be all use for purposes deviating from those mentioned
above, especially:
• Pumping of corrosive gases (exception: pumps in C version).
• Pumping of explosive media.
• Operation of the pump in potentially explosive areas.
• Pumping of gases containing impurities such as particles, dusts and condensate;
note the vapour compatibility levels of the pump.
• Pumping of substances that tend to sublime.
• Use of the vacuum pump to generate pressure.
• Pumping of liquids.
• The use of operating fluids not specified by Pfeiffer Vacuum.
• Connection to pumps or units which are not suitable for this purpose according
to their operating instructions.
• Connection to units which have exposed voltage-carrying parts.
NOTE
Duty to inform
Each person involved in the installation, operation or maintenance of the vacuum pump must read and observe the safety-related parts of these operating instructions.
The operator is obligated to make operating personnel aware of dangers originating from the vacuum pump, the pumped medium and the entire system.
NOTE
CE conformity
The manufacturer's declaration of conformity becomes invalid if the operator modifies the original product or installs additional components.
Following installation into a plant and before commissioning, the operator must check the entire system for compliance with the valid EU directives and reassess it accordingly.
5
Transport and storage
3 Transport and storage
3.1 Transport
Transport instructions
Remove the flange cover from the vacuum and exhaust flange immediately be-
fore connecting!
– Check the protective strainer, paying attention to the o-ring.
Use only the crane eye on the top side of the pump to lift the pump.
Abb. 1: Transporting the pump
3.2 Storage
Check that all the openings on the pump are securely closed.
Store the pump in a cool, dry place; preferably at room temperature (approx.
20°C).
– For a longer period of storage, seal the pump in a PE bag with drying agents
enclosed.
– For a period of storage longer than one year, it is recommended to carry out
maintenance and change the operating fluid.
V
6
Product description
4 Product description
4.1 Product identificationTo correctly identify the product when communicating with Pfeiffer Vacuum, al-
ways have the information from the rating plate available and use it:
• Pump model and model number
• Serial number
• Type and amount of operating fluid
• Date of manufacture
Please find the voltage range and motor-related data on the separately attached
motor rating plate.
Scope of delivery • Pump with/without motor
• Operating fluid P3 (for standard pump)
• Centering ring with O-ring
• Flange cover for vacuum and exhaust flange
• Operating instructions
Pump typesPump type Pump designs
BA 251 Pump on/without base frame
BA 501 Pump on/without base frame
7
Product description
4.2 FunctionThe water cooled Rotary Vane Pumps of the UnoLine Plus series are fitted with a
Operating fluid collecting vessel with return line which ensures constant and slow
circulation of the operating fluid. Condensates, dirt and other particles are separat-
ed from the operating fluid and deposited in the sump of the vessel. This system
provides the pumps with a very large supply of operating fluid (BA 251 approx. 17
l, BA 501 approx. 45 l).
The spring loaded pump valves are of wear-resistant stainless steel. The pump is
"V" belt driven. Pump and motor are mounted together in a base frame.
A cooling water regulator controls, contingent on the pump temperature, the cool-
ing water flow level so that the pump operating temperature is maintained.
Abb. 2: Rotary Vane Pump BA 251 / BA 501
Range of application Being of a robust and simple design, the pumps are especially suitable for vacuum
generation in industrial applications. The pumps can be used as stand-alone units
or as the pre-stage to roots pumps.
1 Operating fluid collecting vessel with return line
4 Level switch connection5 Gas ballast valve39 Oiler40 Sight glass41 Cooling water regulator43 Motor50 Venting or measuring
connection53 Temperature sensor62 Cooling water drain90 Operating fluid and
condensate drain valve91 Operating fluid filler screw98 Vacuum connection99 Exhaust connection100 Needle valve
50 98 100 40 4 91 99 1
53
5
62
41
43
39
90
8
Installation
5 Installation
5.1 Setting up the pump
Installation location Observe the following requirements when setting up the pump:
• Consider the load-bearing capacity of the installation site.
• Maximum installation altitude 2000 m (above mean sea level)
• Permissible ambient temperature: +12 ... 40°C
• Maximum relative humidity 85%
Fill up with operating fluid before operating the first time (see p. 15, chap. 5.6).
– Amount and type according to rating plate
Always place the pump on a firm, even surface.
– The base frame has four holes for anchoring onto the base.
When installing the pump in a closed housing, ensure there is sufficient air cir-
culation.
– Sightglass and gas ballast valve must be visible and readily accessible.
– Voltage and frequency information given on the motor rating plate must be
visible.
5.2 Connecting the vacuum side
Remove locking cap from the vacuum flange;
– pay attention to the cone strainer and the respective O-ring in the intake port.
Clear welded lines of any welding scales, loose parts etc. before installation.
The connection between the pump and the recipient should be kept as short as
possible.
– Depending on the pump type, use metallic hoses or PVC hoses with flange
connections.
– Separators, filters etc. may be installed upstream to protect the pump (see ac-
cessories). However, please observe the loss of pumping capacity due to the
conductivity of the accessories.
5.3 Connecting the exhaust side
Choose the cross-section of the exhaust line to be at least the size of the nominal
connection diameter of the vacuum pump's exhaust connection.
Piping to the pump must be suspended or supported.
– Physical forces from the piping system must not be allowed to act on vacuum
pumps.
Lay piping from the pump sloping downward so that no condensate can flow
back into the pump; otherwise fit a condensate separator.
– If an air trap is created in the system, then a device for draining condensation
water must be provided at the lowest point.
CAUTION
High pressure in the exhaust line!
Danger of damage to the seals and danger of the pump bursting.
Install the line without shut-off valves on the exhaust side. If there is danger of a build-up of excess pressure (> 1500 mbar abs.) in the lines,
observe all official accident prevention safety regulations.
9
Installation
5.4 Connecting the cooling waterBA series pumps are fitted with a cooling water regulator 41 as standard equip-
ment. The regulator's job is to keep the pump at its optimum operating tempera-
ture.
Requirements for the cooling water
The cooling water must be filtered in all cases. This keeps dirt deposits and organic
suspended particles that could accelerate pitting out of the cooling circuit. Comply-
ing with the following requirements for cooling water will prevent corrosion dam-
age:
Connecting cooling
water
The connection must be made so that the flow can be visually checked. The best
method is the free outflow of cooling water via a funnel. If this is not possible be-
cause there is no height difference, a flow indicator must be integrated into the
line. Standard flow monitors or flow indicators may be used.
Connecting the cooling water pipe at the inlet (cooling water regulator 41)
(G 1/2").
Connecting the cooling water pipe at cooling water outlet 41.1 (G 1/2").
Installing pressure
monitor (option)
The pressure monitor can be used as an effective means of monitoring the pump
against cooling water failure.
WARNING
Emission of toxic substances from the exhaust!
Danger of poisoning from emitted gases or vapours, which can be detrimental to health and/or can pollute the environment, depending on the particular application.
Comply with the applicable regulations when working with toxic substances.Only officially approved filter systems may be used to separate and remove these substances.
Requirements for the cooling water
Water filtered, mechanically pure, optically clear, no turbidity, no sediments, che-
mically neutral
Min. oxygen content 4 mg/kg
Max. chloride content 100 mg/kg
Max. carbonate hardness for the water temperatures
15 ... 25 °C
30 ... 40 °C
60 ... 80 °C
10 ° dH
6° dH
3° dH
Max. potassium permanganate usage
pH value
10 mg/kg
7 ... 9
Aggressive carbon dioxide and ammonia must not be detectable
Max. electrical conductivity 500 μS/cm
Max. impurity particle size 25 μm
Permitted inlet overpressure range; if the pressure is higher a pressure reducer
valve must be integrated
2 ... 10 bar
Required pressure differential between inlet and outlet > 0.3 bar
Permitted cooling water temperature range 10 ... 30°C
10
Installation
Abb. 3: Cooling water pressure monitor connection
Assembly
Set pressure monitor 3 in the permissible pressure range of 2 ... 10 bar.
– Liquid pressure hammers must not impact the unit.
Always assemble pressure monitor 3 upright with the pressure connection to
the bottom;
– pay attention to inflexible and vibration-free pressure lines. If vibrations are
to be expected (not pump induced), then the unit is to be fasten to a wall or
to something similar.
Setting
Set pressure as overpressure based on atmospheric pressure:
Abb. 4: Set pressure monitor 3
Set switch-point ph at 2 bar;
– contact 1-4 closes at cooling water pressure of > 2 bar.
Set switch-point pl at 1 bar;
– if the pressure drops to < 1 bar, contact 1-2 closes and contact 1-4 opens.
2 Shut-off valve3 Pressure monitor3.1 Reducing nipple G 3/8 ... 1/2"3.2 Dirt trap G 1/2"3.3 Nipple G 1/2"3.4 Tee G 1/2"41 Cooling water controller, (in-
let)41.1 Cooling water connection,
outlet62 Cooling water drain
62
41.1
PK 133 100-T
8642
p >
p
4 2
1
hp l
11
Installation
5.5 Connecting to the mains power supplyThe pumps are supplied with three phase motors for different voltages and fre-
quencies. The applicable motor type is shown on its rating plate. The drive motor
belt pulley has different diameters for 50 Hz and 60 Hz.
If the pumps are delivered without a motor, permissible pumping rotation speeds
are to be taken into account when selecting the motor (see Technical Data).
Checking the direc-
tion of rotation
The direction of rotation must be checked on pumps with three-phase motors! The
direction of rotation is marked on the pump housing by an arrow.
Remove the locking cap from the exhaust flange.
Slacken V-belt.
Switch on the motor briefly (2 to 3 sec.).
– Motor belt pulley turn in a clockwise direction (see the arrow on the pump
housing).
If the direction of rotation is incorrect: Swap two phase contacts at the connect-
ing cable.
Fill up the operating fluid.
Refit belts and guards.
Motor protection
Pump motors equipped with PTC temperature sensors (3PTC) in the stator wind-
ings can be connected to a PTC resistor tripping device for protection against over-
load.
DANGER
Voltage-bearing elements
Danger to life from electric shock.
The electrical connection can be carried out only by trained and authorised electrici-ans.
Ensure the system is adequately earthed.
CAUTION
Excess voltage!
Danger of destroying the motor.
Power connections must comply with local regulations. Voltage and frequency infor-mation given on the motor rating plate must correspond to the mains voltage and frequency values.
To protect the motor and supply cable in case of malfunction, mains fuse protection must be implemented.
CAUTION
Destruction of or damage to the pump!
The pump can be destroyed if the direction of rotation is incorrect.
Remove V-belts and check direction of rotation prior to commissioning the pump.
CAUTION
Operating fluids may leak out!
If the direction of rotation is incorrect, there is a danger that operating fluids may leak at the vacuum flange.
Always check the direction of rotation before filling in operating fluid.
12
Installation
Tripping devices store the shutdown event and need to be manually switched back
on again via the integrated RESET button or via the external RESET S3. Mains-ON
is detected as an automatic RESET. Other approved motor temperature monitoring
can be used also by the operator.
Set up the connections so that the directional rotation indicated on the pump is
maintained, regardless of the representations in the current flow diagram.
Abb. 5: Connection example for a three-phase AC motor with PTC resistor tripping
Abb. 6: device
Connect drive motor for direct start-up;
– star-delta start-up switching is not possible due to the inadequate torque val-
ue.
The Three Phase Cur-
rent Motor Circuit
Delta Connection
The three coils are connected in series with the connection point connected to the
mains. The voltage of each coil is the same as the mains voltage whereas the mains
current is the cube root of the coil current. Delta connections are denoted by the
symbol Δ. The voltage between the mains supply lines is called mains voltage. The
mains current is the current which flows in the supply lines.
Abb. 7: Motor coil and connecting plate of Delta Connection (for low voltage)
Star Connection
The ends of the three coils are connected at the star center. The terminal voltage is
the cube root of the coil voltage; the mains and the coil current are the same. Star
connections are denoted by the symbol Y.
US Control voltageS1 OFF buttonS2 ON buttonS3 RESET button, externalK1 ContactorF1 ... F4 FusesT1... T3 PTC resistor sensorH1 Tripping indicatorM Motor, 3-phase
1) Only for devices with two relay outputs2) Only for MSR type3) Only for order no.: P 4768 051 FQ
N
L1
M3
L2L3
F1 - F3
K1
10 11
AC 220 ... 240 VUs
F4U V W
S1
S2k1
K1
H1S3
2)
A1 A2 T1 T2 Y2Y1 24 21 22 14 12112) 2) 1) 1) 1)
T1...T3
3)
W2 U1
L1
V2 V1
W1 U2
L3 L2
W2 U2 V2
U1 V1 W1
L1 L2 L3
13
Installation
Abb. 8: Motor coil and connecting plate of Star Connection (for high voltage)
Electrical connection
with cooling water
pressure monitor
Prepare the circuitry of the motor with cooling water pressure monitor 3 according
to the circuit diagram. A combination with a PTC resistor temperature sensor (3TF)
is also possible.
Abb. 9: Connection with cooling water pressure monitor
W2
U1
L1
V2V1
W1
U2
L3 L2
W2 U2 V2
U1 V1 W1
L1 L2 L3
3 Pressure monitorF3 Motor protection switch
PE
L1L2L3NPE
3
14
Installation
5.6 Filling up the operating fluidThe type and amount of operating fluid should be visible on the pump's rating
plate for every rotary vane pump.
The delivery consignment for the standard pump contains sufficient operating flu-
id for one filling. The use of other operating fluids requires prior authorisation from
Pfeiffer Vacuum.
Permissible operating fluids
• P3 (Standard operating fluid)
• Other operating fluids on request.
Fill up the operating
fluid
Screw out the operating fluid fill screw 91; pay attention to the O-ring!
Fill up the operating fluid
– Correct fill level during operation: as per the sightglass image.
Abb. 10: Filling up the operating fluid
Screw in operating fluid fill screw 91.
Check operating fluid level when the pump is running at operating temperature;
– close vacuum flange and gas ballast valve.
– During continuous operation, check operating fluid level on a daily basis, oth-
erwise each time the pump is switched on. The fluid can be topped up during
operation at final vacuum.
Check oiler The bearing oil chambers are factory-filled with P3 lubricant.
Prior to commissioning, check fill level of both oiler 39;
– The oiler should always be filled to a max. of one-third (when the pump is
cold); top up as required (also with running pump).
NOTE
Only permissible operating fluid ensure the safe function of the pump!
Performance data of the pump are determined with the standard operating fluid. These can deviate from the default values when using other certified operating fluids.
Use application-specific operating fluid only after consultation with Pfeiffer Vacuum.
max.
min.
15
Installation
5.7 Setting up ventilation or measurement connectionThe ventilation or measurement connection complies with DN 10 ISO-KF and for
serial-production pumps is sealed vacuum-tight with a blank flange.
Other connection possibilities:
• manually or electrically activated valve for ventilating the pump
• Vacuum gauge for pressure measurement
• Operating fluid feedback for returning operating fluid from the oil mist filter and
oil feedback unit
5.8 Operating fluid level monitoring (option)A level switch 4, which is installed at the pump dome 6 (oil sump) is used for mon-
itoring the operating fluid level.
Electrical connection of the level switch 4 must be carried out, so that an alarm is
released and the pump is switched off, if the operating fluid level falls below the
permissible level. The level switch is preset ex works.
Abb. 11: Operating fluid level monitoring
Turn off the vacuum pump, vent to atmospheric pressure and allow to cool, if
necessary.
Drain off operating fluid partially.
Unscrew screw plug 14 .
Install extension 4.1 between the pump dome and the level switch 4 as a protec-
tion against excessively high temperatures;
50
4 Level switch4.1 Extension6 Pump dome
4
6
4.1
16
Installation
– seal the compression couplings with teflon tape.
NOTE
Make sure the operating fluid level monitoring is functioning properly!
Varying operating conditions such as change in temperature impact the proper functio-ning of the operating fluid level monitoring. As a result, permanent monitoring is often not possible nor necessary either.
The pump has to be running.Creating reproduceable operating conditions, e.g. measurement for final pressure or
intake pressure ≤ 500 mbar If the intake pressure cannot be measured, a time lag, for example, of ≥ 10 min bet-
ween the reaction and the alarm is to be allowed for. If necessary, the alarm has to be disabled during the warm-up phase or in the case
of high gas throughput depending on the process.
17
Operation
6 Operation
6.1 Before switching onVent cooling chamber Compare the voltage and frequency information on the rating plate with the
mains voltage and frequency values.
Check that the exhaust connection allows free flow (max. permissible pressure
1.5 bar absolute).
– Activate the shut-off valves in such a way that they open before or at the same
time as the pump is started.
Protect the pump sufficiently from taking in contaminants by means of suitable
precautions (e.g. dust filters); if necessary, check operating fluid regularly or re-
place at shorter intervals.
Check cooling water supply;
– lever down screw 123 at the cooling water regulator 41 by using a screw-
driver. This will fill the cooling chamber and give water flow indication.
Switch on pump only with the suction chamber is vented, because the normal
power of the motor is insufficient for starting up under vacuum.
6.2 Switching on the pump
No special precautions are necessary when pumping dry gases. In order to attain
the lowest possible final pressures, the gas ballast valve should be closed.
Switch pump on and bring to operating temperature.
Check the operating fluid level in the sightglass.
Setting cooling water The cooling water controller 460 is a continuously operating control valve that is
controlled by the temperature-dependent cooling agent. The thermal sensor is
submerged in the operating fluid and connected via a capillary tube to the bellows
in the valve head. The cooling water controller 460 is factory-set. If other tempera-
tures are required, the pump temperature can be changed by turning setting disk
1. The respective settings, as well as the maximum temperature, must only be
made after consulting with Pfeiffer Vacuum.
°F °C
Q
123
41
CAUTION
Hot surface!
Danger of burns if hot parts are touched. Depending on the operating and ambient conditions, the surface temperature of the pump may rise above 70 °C.
In this case, use suitable finger guards.
NOTE
Pump damage caused by overheating!
Inadequate cooling may cause pump damage.
Vent the cooling chambers and ensure an water flow prior to commissioning or sub-sequently switching on the pump!
18
Operation
Abb. 12: Cooling water controller 460
With a screw driver set setting disk 1 of the cooling water controller to the de-
sired operating temperature.
– Factory setting is 50°C, i.e. bearing oil temperature < 85°C.
– Replacement controllers are not preset, set temperature is 50°C measured
outside on the immersion tube of temperature sensor 53.
6.3 Pumping condensable vapoursTo increase water vapour compatibility, the pump is fitted with a gas ballast valve 5.
To avoid condensation in the pump when pumping condensable vapours, air or in-
ert gas (option) is fed into the working chamber at the beginning of the compres-
sion phase via the gas ballast valve 5.
1 Setting disk2 Setting scale3 Arrow for temperature setting123 Vent screw124 Lock nut
°F °C
Q
2
1
124
123
CAUTION
Bad final vacuum and damage to the pump!
Danger of condensation and corrosion due to exceeding the water vapour compatibi-lity (see Technical data) during operation without a gas ballast or in case of insufficient supply of flushing gas.
Only pump vapours when the pump is warm and the gas ballast valve is open.When the process has been completed, allow the pump to continue running for
about 30 minutes with the vacuum flange closed and the gas ballast open for ope-rating fluid regeneration purposes.
19
Operation
Gas ballast valve
standard version
If lock nut 103 of gas ballast valve 5 is turned counterclockwise until it stops, the
valve is opened. If the lock nut is turned clockwise until it stops, the valve closes.
An intermediate position is not possible.
The silencer constantly supplies small amounts of ambient air for the pump's op-
erating fluid circulation and thus aids the quiet running of the pump when the gas
ballast valve is closed.
Abb. 13: Gas ballast valve 5 in standard version
Conversion kit for gas
ballast valve (option)
Conversion set 121 is available for the gas ballast valve for connecting a dust sep-
arator and/or a solenoid valve to small flange connection KF 16.
Abb. 14: Conversion set for gas ballast valve with solenoid valve and/or dust separator
• Dust separator:
– A dust separator should be used if dust laden air is sucked in. It should be not-
ed that when the STP becomes fouled the amount of gas ballast fed decreases
and the risk of condensation from process media increases.
• Solenoid valve:
– Controlled inlet of ambient air or connecting inert gas possible.
100 Needle valve (silencer)103 Lock nut
103
100
5
NOTE
The silencer is factory-set and should not be changed, otherwise the pump's final va-cuum without gas ballast valve and also noise development are impacted adversely.
5 Gas ballast valve111 Needle valve121 Conversion set (complete)A Solenoid valveB Dust separator STP 016
A
121
5
111
B
20
Operation
Checking the adjustments
Reset the silencer using needle valve 111 after converting the gas ballast valve .
In case of intake air exposed to dust install dust separator on the gas ballast
valve.
Set flushing gas pressure; maximum pressure 1.5 bar (absolute).
– Select the type and amount of flushing gas depending on the process; consult
Pfeiffer Vacuum if necessary.
6.4 Switching off and ventingThe pump can be switched off in any pressure range.
Turn off the vacuum pump, vent to atmospheric pressure and allow to cool, if
necessary.
Disconnect intake line after switching off the pump so that operating fluid does
not flow back into the vacuum line.
– An electrically activated shut-off valve (see Accessories) can be used for this
purpose; the valve's control can be coupled with the motor voltage.
Open magnetic venting valve at measurement connection 50 and vent the
pump.
– To prevent premature venting the venting valve can be coupled with the shut-
off valve's position indicator.
If the ambient temperature is less than 0 °C, the cooling water must be drained
at Pos. 62 after the pump is switched off and after prolonged down time (see p.
10, chap. 5.4).
CAUTION
Flushing gas pressure higher than allowed endangers the operational reliability of
the pump.
The power input of the pump, the temperature and the ejection of operating fluid will increase.
Observe the maximum permissible flushing gas pressure of 1.5 bar (absolute).Set the amount of flushing gas on site; dosing is not possible when using a solenoid
valve!
CAUTION
Danger of backflow of operating fluid into the intake line!
Contamination of the connected vacuum system!
Because the pump has no internal safety valve, install an additional shut-off valve in the intake line.
Shut off the intake line immediately after switching off the pump.
21
Maintenance
7 Maintenance
7.1 Precautions
Turn off the vacuum pump, vent to atmospheric pressure and allow to cool, if
necessary.
Disconnect the drive motor from the mains and secure it so that it cannot be
switched on.
Only dismantle the pump as far as necessary in order to repair defects.
Dispose of used operating fluid in compliance with local regulations.
When using synthetic operating fluids or working with toxic substances or sub-
stances contaminated with corrosive gases, the relevant instructions governing
their use must be observed.
Use only alcohol or similar agents for cleaning pump parts.
Checklist for inspec-
tion, maintenance
and overhaul
Certain repair and overhaul work should only be performed by Pfeiffer Vacuum
Service (PV). Pfeiffer Vacuum will be released from all warranty and liability claims
if the required intervals for inspection, maintenance, or overhaul are exceeded or
inspection, maintenance, repair or overhaul procedures are not performed proper-
ly. This also applies if replacement parts other than Pfeiffer Vacuum OEM replace-
ment parts are used.
WARNING
Danger of injury from moving parts!
After power failure or motor shutdown due to overheating, the motor may restart auto-matically.
Secure the motor so that it cannot be switched on while any work is being performed on the pump.
If necessary, dismantle the pump from the installation for inspection.
WARNING
Pump parts may be contaminated from pumped media!
Danger of poisoning due to contact with harmful substances.
Decontaminate the pump before carrying out any maintenance work. In the event of contamination, take suitable safety precautions to prevent your health
from being harmed by any dangerous substances.
Acti
vit
y
dail
y
as r
eq
uir
ed
as r
eq
uir
ed
;
at
least
an
nu
all
y
as r
eq
uir
ed
;
at
least
eve
ry 2
ye
ars
as r
eq
uir
ed
;
at
least
eve
ry 4
ye
ars
Check operating fluid level X
Visual inspection (leak-tightness/oil leaks) X
Check cooling water flow lines X
Clean cooling water flow lines X
Clean gas ballast valve X
Clean the fan cap of the motor X
Check "V" belt drive X
Change operating fluid X
Change "V" belts X
Replace radial shaft seals X (PV)
Replace exhaust valves X (PV)
Replace vanes X (PV)
22
Maintenance
Depending on the process, the required replacement intervals for lubricants and the intervals for inspection, maintenance and overhaul may be shorter than the guide values specified in the table. Consult with Pfeiffer Vacuum Service if necessary.
7.2 Changing the operating fluidThe changing interval for the operating fluid depends on the pump applications,
but should be carried out once a year.
The level of deterioration of organic operating fluids (P3, for example) can be
read off the colour scale in accordance with DIN 51578; request the supplemen-
tary sheet PK 0219 BN or download it from the Internet.
Fill the specimen in a test tube or some similar vessel and test by holding
against the light.
Where discolouration is dark yellow to red brown (equivalent to 4 ... 5 on the
scale) change operating fluid.
Switch off the pump.
Open operating fluid drain screw 90 and drain operating fluid.
Abb. 15: Draining the operating fluid
Replace bearings X (PV)
Acti
vit
y
da
ily
as r
eq
uir
ed
as r
eq
uir
ed
;
at
lea
st
an
nu
ally
as r
eq
uir
ed
;
at
lea
st
eve
ry 2
ye
ars
as r
eq
uir
ed
;
at
lea
st
eve
ry 4
ye
ars
NOTE
Depending on the applications, Pfeiffer Vacuum recommends determining the ex-
act service life of the operating fluid during the first year of operation.
The replacement interval may vary from the guide value specified by Pfeiffer Vacuum depending on the thermal and chemical loads, and the accumulation of suspended par-ticles and condensation in the operating fluid.
90
WARNING
Hot operating fluid!
Danger of burns when draining due to contact with skin.
Wear suitable protective clothing.Use a suitable collecting vessel.
23
Maintenance
Allow the pump to run for approx. 10 seconds with open gas ballast valve 5 so
that the remaining operating fluid drains from the pump body.
– In case of serious contamination, the operating fluid will have to be changed
several times (flushing):
Close operating fluid drain valve 90.
Flushing Fill up with operating fluid to the middle of the sight glass.
Operate the pump with the gas ballast open until the pump has warmed up.
Drain the operating fluid again and check for contamination, flush again if nec-
essary.
Screw the operating fluid drain screw back in.
Fill up with operating fluid and check the filling level (see p. 15, chap. 5.6).
7.3 Clean the cooling water chambersContamination and calcium deposits can affect the pump's cooling water circuit
and bring about an elevated operating temperature. This can be avoided, depend-
ing on the cooling water quality, by cleaning the cooling water chambers at regular
intervals.
Isolate cooling water supply and drain the cooling water through drain plug 62.
Remove flanges 14, 15 and 95; observe seals 22 and 23 (see p. 32, chap. 11.2).
Clean the cooling water chamber with a suitable agent.
Remount flanges with seals and refit drain plug 62.
Reinstate supply and vent by levering vent screw 123.
7.4 Checking the "V" belt driveThe correct belt bias is crucial to efficient power transmission and achieving the
usual belt lifespans. The belts will fail prematurely if the bias is too low or too high.
Excessive belt bias frequently results in pump or motor bearing defects.
The V-belt drive must be checked regularly for wear, damage and V-belt bias.
WARNING
Operating fluid may contain toxic substances from the pumped media!
Danger of poisoning from the emission of harmful substances from the operating fluid.
Wear suitable protective clothing and respirators.Dispose of operating fluid according to the local regulations
NOTE
Request safety data sheets for operating fluids and lubricants
from Pfeiffer Vacuum or download them from the Internet.
Dispose of operating fluid according to the local regulations.
WARNING
If drive belts are exposed!
Fingers and hands can become crushed while carrying out service activities.
Isolate power before removing belt guard.Do not expose any body parts to the operating range of the belt drive.Wear close-fitting clothing.Remount belt guard on completion of the work.
24
Maintenance
Fitting the "V" belts Observe the following instructions carefully:
If one or several belts fail, a new set must be mounted.
– Use only measured V-belt sets.
Align shafts and pullies.
– The maximum deviation of the pully alignment must not exceed 1°.
Reduce the motor distance so that the belt can be fitted into the grooves without
force. The use of levers, screwdrivers etc. to force fit is not permitted.
Do not use belt wax or spray.
Setting the V-belt bias
Abb. 16: Setting the belt bias
Place spring balance with load hook A in centre of strand.
Apply required test load f of 50 N according to scale C; pull spring balance at
right-angle to the strand.
If necessary, correct the bias until the setpoint value is reached.
Observe the drive during the first few hours of operation and retension after ap-
prox. 0.5 to 4 hours running time under full load.
Check the belt bias again after approx. 24 hours of operation and correct if nec-
essary.
Setting values for correct
V-belt bias
BA 251
50/60 Hz
BA 501
50/60 Hz
Impression depth of strand (Ea) 15+2 mm 21+2
Test load for belt bias (f) 50 N 50 N
Branch length of gear, theoretical (L) 488 mm 697 (50 Hz)
705 (60 Hz)
A Load hookC Scale for test load
L
L/2E
Trum
f
a
AC
25
Maintenance
7.5 Cleaning the gas ballast valveGas ballast valve 5 is only exposed to contamination if dusty air is sucked in.
Abb. 17: Gas ballast valve
Unscrew gas ballast valve from angle piece 120, observe sealing ring 119.
Loosen locking nut 101 and unscrew needle valve 100.
Loosen self-locking nut 102 and remove plain washers 107 and 108.
Loosen retention screw 112 and unscrew top part of valve.
Remove valve plate 109.
Unscrew screw 117 and remove parts 105 and 106; observe O-ring 118.
Lever out valve insert 114 and remove circlip 113.
Pull valve insert 114 from valve housing 104.
Undo screws 116 and remove valve springs 115.
Clean all parts and examine for wear. Replace gasket 110 if necessary.
Reassemble in the reverse sequence.
7.6 Setting silencerIf the silencer fails to function after the gas ballast valve has been overhauled, a
hammering noise at the final vacuum will be heard in the pump (oil hammer). This
will not damage the pump but has a disturbing effect.
The silencer is set using a standard screwdriver when the pump is running at op-
erating temperature and vacuum flange and gas ballast valve are closed.
Close needle valve 100/111 and wait until you hear oil hammer.
Open needle 100/111 until the oil hammer noise disappears (approx. 1/2 rota-
tion).
Hold needle valve 100/111 in position with the screwdriver and tighten
locking nut 101.
If the silencer is set correctly, the pump vacuum is < 6,6 • 10-2 mbar total pressure.
100 Needle valve101 Locking nut102 Self-locking nut103 Adjusting nut104 Valve housing105 Intermediate piece106 Clamping blocks107 Washer108 Washer109 Valve plate110 Gasket112 Retention screw113 Circlip114 Valve insert115 Valve spring116 Screw117 Screw118 O-Ring119 Sealing ring120 Angle piece
100
101102
107
108
103
113
114
104
120
109
110
112
115
116
117
118
105
119
106
5
NOTE
Once the gas ballast valve has been removed and re-assembled, the silencer must be reset!
26
Decommissioning
8 Decommissioning
8.1 Shutting down for longer periodsFollow the following procedure before shutting down the pump for a longer period
of time:
Switch off the pump.
Change the operating fluid (see p. 23, chap. 7.2).
Switch pump on and bring to operating temperature.
Turn off the vacuum pump, vent to atmospheric pressure and allow to cool, if
necessary.
Close the flange openings by using the original protective covers.
Stop cooling water feed and remove cooling water intake and output lines.
Blow compressed air through the cooling water system and completely empty
cooling water channels to avoid rust and frost damage.
Fill in additional operating fluid in accordance with table below:
– BA 251: 5 l
– BA 501: 10 l
8.2 Re-starting
Visually inspect the inner of the pump dome before taking it into operation. If there
is evidence of rust on the parts of the pump which form the housing, then do not
take it into operation and contact Pfeiffer Vacuum Service.
Depending on how long the pump is taken out of operation, it may be necessary
to replace the radial shaft sealing rings. With reference to DIN 7716 and the manu-
fac-turer's specifications we recommend replacing the installed elastomer parts af-
ter 2 years. After this time the bearings should also be replaced; contact Pfeiffer
Vacu-um Service.
If drying pearls were inserted then they should be removed now. Improper han-
dling can cause failure of the pump.
8.3 DisposalProducts or parts thereof (mechanical and electrical components, operating fluids,
etc.) may cause environmental burden.
Safely dispose of the materials according to the locally applicable regulations.
CAUTION
Emission of operating fluid!
Danger of the operating fluid being emitted at the exhaust flange if overfilled.
Drain the operating fluid to the normal level before restarting the pump.
27
Malfunctions
9 MalfunctionsPlease note the following instructions should the pump malfunction:
9.1 Rectifying malfunctions
CAUTION
Hot surface!
Danger of burns if hot parts are touched. The surface temperature of the pump may rise above 105 °C in case of malfunction.
Carry out work on the pump only after it has cooled to a safe temperature.
NOTE
Motor overload!
Depending on the malfunction (e.g. blocking during cold start), the motor may not be sufficiently protected by the built-in thermal protection switch from damage through overheating.
Implement an additional network safety device.
Problem Possible causes Remedy
Pump will not start
up
No mains voltage or voltage
does not correspond to the mo-
tor data
Check mains voltage and mains fuse
protection; check motor switch
Pump temperature too low Warm up pump to > 12°C
Suction chamber is not vented Vent pump at the intake side after
switching off
Thermal protection switch has
responded
Detect and fix cause of overheating;
allow pump to cool off if necessary.
Motor switch on site defective Reset switch or replace
Pump system dirty Clean pump; contact Pfeiffer Vacuum
Service if necessary.
Pump system damaged Clean and overhaul pump; contact
Pfeiffer Vacuum Service if necessary.
Motor defective Replace motor
Pump switches off
sometimes after
being started
Thermal protection switch of the
motor has responded
Detect and fix cause of overheating;
allow motor to cool off if necessary.
Mains fuse protection triggered
due to overload (e.g. cold start)
Warm up pump
Exhaust pressure too high Check exhaust line and exhaust accesso-
ries for blockage.
Operating tempera-
ture increases rapid-
ly
Interrupted cooling water circuit Ckeck water chambers and flow lines for
dirt and calcium deposits.
Pump does not attain
final pressure
Leak in system Repair leak
Measurement reading is false Check gauge, check final pressure
without installation connected.
Pump or connected accessories
are dirty
Clean pump and check components for
contamination.
Operating fluid dirty Operate pump for a longer period with
gas ballast valve open or change
operating fluid
Operating fluid filling level too
low
Top off operating fluid
Pump damaged Contact Pfeiffer Vacuum Service.
Pumping speed of
pump too low
Intake line not well-dimensioned Keep connections as short as possible
and see that cross-sections are
sufficiently dimensioned
Exhaust pressure too high Check exhaust line and exhaust
accessories for blockage
28
Malfunctions
Loss of operating flu-
id in pump and oiler
O-ring of pump dome leaky Check tightness; replace o-ring if
necessary
Radial shaft seal leaky Replace radial shaft seal if necessary
Operational loss of operating
fluid; operating fluid in the ex-
haust lines
If necessary, install oil mist filter and oil
return unit
Unusual operating
noises
Tension of the "V" belt Check "V" belt tension (see p. 24, chap.
7.4)
Silencer dirty Clean or replace the silencer;
Damage to the pump system Clean and overhaul pump; contact Pfeif-
fer Vacuum Service if necessary.
Motor bearing defective Replace motor; contact Pfeiffer Vacuum
Service if necessary
Problem Possible causes Remedy
NOTE
Service work should be carried out by qualified personal only!
Pfeiffer Vacuum is not liable for any damage to the pump resulting from work carried out improperly.
Take advantage of our service training programs; additional information at www.pfeiffer-vacuum.net.
Please state all the information on the pump rating plate when ordering spare parts.
29
Service
10 ServicePfeiffer Vacuum offers first-class service!
• Maintenance/repairs on site by Pfeiffer Vacuum field service
• Maintenance/repairs in a nearby service center or service point
• Fast replacement with exchange products in mint condition
• Advice on the most cost-efficient and quickest solution
Detailed information and addresses at: www.pfeiffer-vacuum.net (Service).
Maintenance and repairs in Pfeiffer Vacuum ServiceCenter
The following steps are necessary to ensure a fast, smooth servicing process:
Download the forms "Service Request" and "Declaration on Contamination".1)
Fill out the "Service Request" form and send it by fax or e-mail to your
Pfeiffer Vacuum service address.
Include the confirmation on the service request from Pfeiffer Vacuum with your
shipment.
Fill in the contamination declaration and enclose it in the shipment (required!).
Dismantle all accessories.
Drain operating fluid/lubricant.
Drain cooling medium, if used.
Send the pump or unit in its original packaging if possible.
Sending of contaminated pumps or devices
No units will be accepted if they are contaminated with micro-biological, explosive
or radioactive substances. “Hazardous substances” are substances and com-
pounds in accordance with the hazardous goods directive (current version). If
pumps are contaminated or the declaration on contamination is missing, Pfeiffer
Vacuum performs decontamination at the shipper's expense.
Neutralise the pump by flushing it with nitrogen or dry air.
Close all openings airtight.
Seal the pump or unit in suitable protective film.
Return the pump/unit only in a suitable and sturdy transport container and send
it in while following applicable transport conditions.
Service orders
All service orders are carried out exclusively according to our repair conditions for
vacuum units and components.
1) Forms under www.pfeiffer-vacuum.net
30
Spare parts
11 Spare partsSet of seals
The set of seals contains all seals including all o-rings of the assembly groups and
the subassemblies.
Maintenance kit
The pack contains the following parts:
• Radial shaft seal rings
• The o-rings of the operating fluid filler and drain screw when changing the op-
erating fluid
• The o-ring for the pump dome, after cleaning the operating fluid sump
Set of vanes
The kit contains the vanes of the pump stage, the vane springs and the guide pins
(only for the BA 501).
Overhaul kit
The kit contains all wearing parts of the pump:
• Set of seals
• Wearing parts of the pumping system
• Wearing parts of the gas ballast valve
• Oiler
• Fan belt (only for pumps with motor)
Set of discharge valves
The kit contains the wearing parts of the discharge valves. Also the o-ring of the
pump dome is included.
Cooling water regulator
• Cooling water regulator
• Sleeve of the thermal sensor
• Parts of the piping
11.1 Spare parts packagesThe spare parts packages listed here are only applicable for standard models.
Please state all information on the rating plate when ordering spare parts. Other
spare parts than those described in this manual must not be used without the
agreement of Pfeiffer Vacuum.
Article no.: Pump type Set of
seals
Maintenance
kit
Overhaul
kit
Set of di-
scharge
valves
Set of vanes Cooling water
regulator
PK C42 602 BA 251 / 50 Hz PK E40 001 -T PK E41 001 -T PK E42 002 -T PK E45 002 -T PK E48 001 -T PK 081 950 -T
PK C42 637 BA 251 / 60 Hz PK E40 001 -T PK E41 001 -T PK E42 002 -T PK E45 002 -T PK E48 001 -T PK 081 950 -T
PK C43,602 BA 501 / 50 Hz PK E40 002 -T PK E41 002 -T PK E42 004 -T PK E45 001 -T PK E48 002 -T PK 081 950 -T
PK C43 637 BA 501 / 60 Hz PK E40 002 -T PK E41 002 -T PK E42 004 -T PK E45 001 -T PK E48 002 -T PK 081 950 -T
31
Spare parts
11.2 Exploded view BA 251/501
32
Spare parts
1 Condensate separator with operating fluid return unit
2 Cover3 Rotor4 Intake pipe5 Gas ballast valve6 Pump dome7 Valve crown8 Pump body9 Bearing housing/drive side10 Bearing cover/drive side11 Bearing housing/non drive side12 Bearing cover/non drive side13 Vane14 Blank flange15 Blank flange16 Washer17 Spacer ring18 Pipe19 Valve pipe20 Exhaust valve21 Valve seat22 Seal23 Seal24 Seal25 Setting ring26 Set screw27 "V" belt pulley28 Flange cover29 Supporting ring30 Window ring31 Centering ring32 Tensioning ring33 Blank flange34 Locking screw with sealing ring35 Vane spring36 Strainer
37 Guide pin (only for BA 501)38 Cylinder roller bearing39 Oiler40 Sight glass41 Cooling water regulator42 Double nipple44 Screwed connection45 Angle46 Seal47 Radial shaft seal48 Radial shaft seal49 O-ring51 O-ring52 O-ring54 O-ring55 O-ring56 O-ring57 O-ring57 O-ring58 O-ring59 O-ring60 O-ring61 O-ring63 Screw64 Screw65 Spring washer66 Washer67 Screw68 Screw69 Screw70 Screw73 Screw75 Screw76 Screw77 Ring screw79 Dowel pin
80 Key81 Screw84 Pressure piece85 Pressure ring86 Screw-in sleeve87 Pipe88 Flange90 Operating fluid and condensate
drain valve91 Operating fluid filler screw92 Sleeve93 O-ring94 Locking screw95 Flange96 "V" belt
33
Accessories
12 Accessories
Further detailed accessories are contained in the Pfeiffer Vacuum printed or Online
Catalogue.
Benennung BA 251
ONF 100, oil mist filter for pumping speeds of up to 250 m3/h PK Z40 012
Reducing piece, stainless steel, DN 100/63 ISO-K PF 321 210-X
Oil return unit, ORF 005, standard version PK Z90 065
FAK 063, activated carbon filter PK Z30 010
KAS 63, Condensate separator for pumping speeds of up to 120 m3/h PK Z10 010
STP 063, dust separator, single-stage for minor contamination PK Z60 210
Barretter actuation unit 3 TF P4 768 051 FQ
Cooling water connection unit for BA 251 / 501 PK 133 100-T
Pressure monitor for cooling water circulation system BA 251/501 P47 47 161 MF
Operating fluid level monitoring, 24 V DC for BA 251 / 501 PK 133 115-T
EVB 063 PA, angle valve with position indicator (PI), with pilot valve
(PV), 24 V DC
PF B18 201
STP 016, dust separator, single-stage for minor contamination PK Z60 203
Benennung BA 501
ONF 160, oil mist filter for pumping speeds of up to 500 m3/h PK Z40 014
Reducing piece, stainless steel, DN 160/100 ISO-K PF 321 221-X
Oil return unit, ORF 005, standard version PK Z90 065
FAK 100, activated carbon filter PK Z30 012
KAS 100, Condensate separator for pumping speeds of up to 250 m3/h PK Z10 012
STP 100, dust separator, single-stage for minor contamination PK Z60 212
Barretter actuation unit 3 TF P4 768 051 FQ
Cooling water connection unit for BA 251 / 501 PK 133 100-T
Pressure monitor for cooling water circulation system BA 251/501 P47 47 161 MF
Operating fluid level monitoring, 24 V DC for BA 251 / 501 PK 133 115-T
EVB 100 PA, angle valve with position indicator (PI), with pilot valve
(PV), 24 V DC
PF B28 201
STP 016, dust separator, single-stage for minor contamination PK Z60 203
34
Technical data
13 Technical data
13.1 Dimensions
Parameter BA 251 BA 501
Flange (in) DN 63 ISO-F DN 100 ISO-F
Flange (out) DN 63 ISO-K DN 100 ISO-K
Pumping speed at 50 Hz 250 m3/h 500 m3/h
Pumping speed at 60 Hz 250 m3/h 500 m3/h
Ultimate pressure with gas ballast ≤ 6·10-1 mbar ≤ 6·10-1 mbar
Ultimate pressure without gas ballast ≤ 6·10-2 mbar ≤ 6·10-2 mbar
Water vapor capacity 50 Hz 7000 g/h 14000 g/h
Water vapor capacity 60 Hz 7000 g/h 14000 g/h
Water vapor tolerance at 50 Hz 30 mbar 30 mbar
Water vapor tolerance at 60 Hz 30 mbar 30 mbar
Nominal rotation speed at 50 Hz 1500 rpm 1500 rpm
Nominal rotation speed at 60 Hz 1800 rpm 1800 rpm
Nominal rotation speed pump, 50 Hz 490 rpm 345 rpm
Nominal rotation speed pump, 60 Hz 490 rpm 345 rpm
Emission sound pressure level without gas ballast ≤ 63 dB (A) ≤ 65 dB (A)
Rated power 50 Hz 11 kW 15 kW
Rated power 60 Hz 12.5 kW 17 kW
Switch No No
Mains cable No No
Exhaust pressure, max. < 1500 mbar < 1500 mbar
Operating fluid P3 P3
Pump fluid filling 17 l 45 l
Weight: with motor 570 kg 1100 kg
Cooling water consumption 50 l/h 90 l/h
Water cooling Yes Yes
G
A
H
I
D
C
E F∅B∅B K
M N
J
L
DN 1
DN 10 KF
DN 2
35
Technical data
Abb. 18: Maßbild BA 251/501
BA 251 BA 501
DN 1 DN 63 ISO-F DN 100 ISO-F
DN 2 DN 63 ISO-K DN 100 ISO-K
A 980 1204
B 14 18
C 890 1130
D 840 1070
E 277 310
F 522 715
G 1030 1260
H 1528 1905
I 745 890
J 730 980
K 220 280
L 480 645
M 520 685
N 130 200
36
Declaration of conformity
according to the EC directive:
• Machinery 2006/42/EC (Annex II, no. 1 A)
We hereby declare that the product cited below satisfies all relevant provisions of
EC directive "Machinery" 2006/42/EC.
In addition, the product cited below satisfies all relevant provisions of EC directive
"Electromagnetic Compatibility" 2004/108/EC .
The agent responsible for compiling the technical documentation is Mr. Sebastian
Oberbeck, Pfeiffer Vacuum GmbH, Berliner Straße 43, 35614 Aßlar.
UnoLineTM Plus
BA 251/501
Guidelines, harmonised standards and national standards and specifications
which have been applied:
DIN EN ISO 12100-1 : 2004 DIN EN 61010 : 2002 DIN EN 61000-6-3 : 2007
DIN EN ISO 12100-2 : 2004 DIN EN ISO 13857 : 2008 DIN EN 61000-6-4 : 2007
DIN EN 1012-2 : 1996 DIN EN 61000-6-1 : 2007
DIN EN ISO 14121-1 : 2007 DIN EN 61000-6-2 : 2006
Signatures:
Pfeiffer Vacuum GmbH
Berliner Straße 43
35614 Asslar
Germany
(M.Bender)
Managing Director
(Dr. M. Wiemer)
Managing Director
CE/2010
Technical data
38
Pfeiffer Vacuum Technology AG · Headquarters/Germany
Tel. +49-(0) 64 41-8 02-0 · Fax +49-(0) 64 41-8 02-2 02 · [email protected] · www.pfeiffer-vacuum.net
Vacuum is nothing, but everything to us!
Turbopumps
Rotary vane pumps
Roots pumps
Dry compressing pumps
Leak detectors
Valves
Components and feedthroughs
Vacuum measurement
Gas analysis
System engineering
Service
