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Instr Manual: E2M28 and E2M30 Rotary Vacuum Pumps - en A373-10-880 Issue J
Instruction Manual
E2M28 and E2M30 Rotary Vacuum Pumps
Description
Item Number
E2M28, 100/200 V, 50 Hz or 100-105/200-210 V, 60 Hz, single-phase
A373-15-904
E2M28, 115/230 V, 60 Hz, single-phase
A373-15-981
E2M28, 200-240 V, 50 Hz, or 230-240 V, 60 Hz, single-phase
A373-15-903
E2M28, 200-220/380-415 V, 50 Hz, or 200-230/460 V, 60 Hz, three-phase
A373-10-940
E2M28, 200-240 V, 50 Hz, or 230-240 V, 60 Hz, single-phase (Amphenol)
A373-16-903
E2M28, 110/200-240 V, 50 Hz, or 115-120/200-230 V, 60 Hz, single-phase
A373-17-984
E2M28-FF, 220/240 V, 50 Hz, or 230/240 V, 60 Hz, single-phase
A373-25-903
E2M28-FF, 200-220/380-415 V, 50 Hz, or 200-230/460 V, 60 Hz, three-phase
A373-21-940
E2M30, 100/200 V, 50 Hz or 100-105/200-210 V, 60 Hz, single-phase
A374-15-904
E2M30, 115/230 V, 60 Hz, single-phase
A374-15-981
E2M30, 200-240 V, 50 Hz, or 230-240 V, 60 Hz, single-phase
A374-15-903
E2M30, 200-220/380-415 V, 50 Hz, or 200-230/460 V, 60 Hz, three-phase
A374-10-940
Jun 03
Issue J
E2M28 and E2M30 Rotary Vacuum Pumps
PAGE
i
i
1
INTRODUCTION
1
1.1
Scope and definitions
1
1.2
ATEX directive implications
1
1.3
Description
2
1.4
Gas-ballast
2
2
TECHNICAL DATA
4
2.1
Operating and storage conditions
4
2.2
Performance
4
2.3
Mechanical data
5
2.4
Electrical data
5
2.5
Lubrication data
6
3
INSTALLATION
8
3.1
Safety
8
3.2
System design
8
3.3
Unpack and inspect
9
3.4
Locate the pump
9
3.5
Fill the pump with oil
10
3.6
Electrical installation: single-phase motors
10
3.6.1
Introduction
10
3.6.2
Standard single-phase motors
11
3.6.3
Amphenol version single-phase motors
11
3.6.4
110/200-240 V 50 Hz or 115-120/200-230 V
60 Hz single-phase motors
11
3.7
Electrical installation: three-phase motors
15
3.8
Connect the electrical supply to the motor
15
3.8.1
Check the direction of rotation
15
3.9
Connect the pump inlet
16
3.10
Connect the pump outlet
16
3.11
Gas-ballast inlet connection
18
3.12
Leak test the system
18
4
OPERATION
19
4.1
ATEX directive implications
19
4.1.1
Introduction
19
4.1.2
Flammable/pyrophoric materials
19
4.1.3
Gas purges
20
4.2
Gas-ballast control
20
4.3
Start-up
21
4.4
To achieve ultimate vacuum
21
4.5
To pump condensable vapours
22
4.6
To decontaminate the oil
22
4.7
Unattended operation
22
4.8
Shut-down
22
CONTENTS
Section
Page
I
p
s
i
t
e
ch 8102-03 Jun 03
Issue J
E2M28 and E2M30 Rotary Vacuum Pumps
PAGE
ii
ii
5
MAINTENANCE
23
5.1
Safety information
23
5.2
Maintenance plan
23
5.3
Check the oil level
24
5.4
Replace the oil
24
5.5
Inspect and clean the inlet-filter
25
5.6
Clean the gas-ballast filter
26
5.7
Clean the motor fan-cover and enclosure
26
5.8
Clean and overhaul the pump
26
5.9
Fit new blades
27
5.10
Test the motor condition
27
5.11
Fault finding
27
5.11.1
The pump has failed to start
27
5.11.2
The pump fails to achieve specified performance
(failure to reach ultimate vacuum)
27
5.11.3
The pump is noisy
27
5.11.4
The pump surface temperature is above 100
o
C
28
5.11.5
The vacuum is not maintained after the pump is
switched off
28
5.11.6
The pumping speed is poor
28
5.11.7
There is an external oil leak
28
6
STORAGE AND DISPOSAL
29
6.1
Storage
29
6.2
Disposal
29
7
SPARES AND ACCESSORIES
30
7.1
Introduction
30
7.2
Spares
30
7.3
Accessories
30
7.3.1
Inlet Catchpot
32
7.3.2
Inlet Dust Filter
32
7.3.3
Inlet Desiccant Trap
32
7.3.4
Inlet Chemical Trap
32
7.3.5
Outlet Mist Filter
32
7.3.6
Solenoid Operated Pipeline Valve
32
7.3.7
Foreline Trap
32
7.3.8
Vibration Isolators
32
7.3.9
Oil Drain Extension
32
7.3.10
Pump Inlet Adaptor
32
7.3.11
Flexible Bellows
32
7.3.12
Pump Outlet Adaptor
32
7.3.13
Gas Ballast Banjo/Elbow Assembly
32
7.4
Gas Ballast Valve
32
RETURN OF BOC EDWARDS EQUIPMENT
CONTENTS (CONTINUED)
Section
Page Jun 03
Issue J
E2M28 and E2M30 Rotary Vacuum Pumps
PAGE
iii
iii
ILLUSTRATIONS
Figure
Page
1
The E2M28/E2M30 pump (single-phase motor shown)
3
2
Dimensions (mm)
7
3
Electrical supply connection, single-phase motors:
220-240 V 50 Hz and 230-240 V 60 Hz
12
4
Electrical supply connection, single-phase motors:
100 V 50 Hz, 100-105 V 60 Hz and 115 V 60 Hz
12
5
Electrical supply connection, single-phase motors:
200 V 50 Hz, 200-210 V 60 Hz and 230 V 60 Hz
13
6
Electrical supply connection, single-phase motors with
Amphenol connector:
220-240 V 50 Hz and 230-240 V 60 Hz
13
7
Motor voltage selection: single-phase motors,
110/200-240 V 50 Hz and 115-120/200-240 V 60 Hz
14
8
Electrical supply connection, three-phase motors:
200-220 V 50 Hz and 200-230 V 60 Hz
17
9
Electrical; supply connection, three-phase motors:
380-415 V 50 Hz and 460 V 60 Hz
17
10
Remove/replace the inlet filter
25
11
Remove/replace the gas-ballast filter
26
12
Accessories
31 Jun 03
Issue J
E2M28 and E2M30 Rotary Vacuum Pumps
PAGE
iv
iv
TABLES
Table
Page
1
Operating and storage conditions
4
2
Performance data
4
3
Mechanical data
5
4
Electrical data: three-phase motors
5
5
Electrical data: single-phase motors
5
6
Lubrication data
6
7
Checklist of items
9
8
Motor connection details
10
9
Maintenance plan
24
10
Spares Item Numbers
30
11
Accessory Item Numbers
30
Associated publications
Publication title
Publication Number
Vacuum pump and vacuum system safety
P300-20-100 Jun 03
Issue J
E2M28 and E2M30 Rotary Vacuum Pumps
PAGE
1
1
INT
R
ODUCTI
ON
1
INTRODUCTION
1.1
Scope and definitions
This manual provides installation, operation and
maintenance instructions for the following BOC
Edwards E2M28 and E2M30 rotary vacuum pumps.
You must use the pump as specified in this manual.
Read this manual before you install and operate your
pump. Important safety information is highlighted as
WARNING and CAUTION instructions; you must
obey these instructions. The use of WARNINGS
and CAUTIONS is defined below.
The units used throughout this manual conform to
the SI international system of units of measurement.
The following warning labels are on the pump:
WARNING
Warnings are given where failure to
observe the instruction could result
in injury or death to people.
CAUTION
Cautions are given where failure to observe the
instruction could result in damage to the
equipment, associated equipment and process.
1.2
ATEX directive implications
This equipment is designed to meet the
requirements of Group II Category 3 equipment
in accordance with Directive 94/9/EC of the
European Parliament and the Council of 23rd
March 1994 on the approximation of the laws of
the Member States concerning equipment and
protective systems intended for use in potentially
explosive atmospheres. (The ATEX Directive)
The ATEX Category 3 applies in respect of
potential ignition sources internal to the
equipment. An ATEX Category has not been
assigned in respect of potential ignition sources
on the outside of the equipment as the equipment
has not been designed for use where there is an
external potentially explosive atmosphere.
There is no potential source of ignition within the
pump during normal operation but there may be
potential sources of ignition under conditions of
predictable and rare malfunction as defined in the
Directive. Accordingly, although the pump is
designed to pump flammable materials and
mixtures, operating procedures should ensure
that under all normal and reasonably predictable
conditions, these materials and mixtures are not
within explosive limits. Category 3 is considered
appropriate for the avoidance of ignition in the
case of a rare malfunction which allows flammable
materials or mixtures to pass through the pump
while within their explosive limits.
(Continued on page 2)
Warning - refer to accompanying
documentation.
Warning - risk of electric shock.
Warning - hot surfaces.
Warning - do not block
the pump outlet. Issue J
Jun 03
PAGE
2
E2M28 and E2M30 Rotary Vacuum Pumps
INT
R
ODUCTI
ON
2
When flammable or pyrophoric materials are
present within the equipment you must:
Not allow air to enter the equipment.
Ensure that the system is leak tight.
Use an inert gas purge (for example, a
nitrogen purge) to dilute any flammable gases
or vapours entering the pump inlet, and/or
use an inert gas purge to reduce the
concentration of flammable gases or vapours
in the pump and in the exhaust pipeline to less
than one quarter of the gases' published lower
explosive limits (LEL).
For further information, please contact BOC
Edwards: refer to the Addresses page at the end
of this manual for details of your nearest BOC
Edwards company.
1.3
Description
The BOC Edwards E2M28 and E2M30 pumps are
shown in Figure 1. Refer to Figure 1 for item
numbers in brackets in the following descriptions.
The E2M28 and E2M30 pumps are two-stage, direct
drive, sliding vane pumps. The pump is oil-sealed and
designed for reliable, long-term operation in both
laboratory and industrial environments. The pump is
a free-standing unit. The drive is provided through a
flexible coupling by a single-phase or three-phase
(four pole) motor.
The motors are totally enclosed a