Vogel MFE5-KW3-2 User manual

1-1202-US
Gear Pump Units
For single-line centralized lubrication systems
These units comprising the MFE Group are
designed to supply the lubricant used in in-
termittently operated, single-line centralized
lubrication systems.
The basic setup includes a gear pump unit
with motor, a 3- or 6-liter lubricant reservoir
– optionally of metal or plastic – or a 15-liter
metal reservoir and float switch to monitor
the minimum permissible level of lubricant.
In addition to the basic models it is also
possible for the units to be outfitted with
add-ons.
Special models for a wide variety of applica-
tions are listed in the overview table on
page 3.
MFE5-KW3-2 MFE5-KW6 MFE5-BW7

Gear pump units for single-line centralized lubrication systems
2 1-1202-US
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Example of a single-line central lubrication system for automobile makers
The system consists essentially of:
a gear pump unit–
6-liter metal reservoir–
piston distributors, assembly 340–
metering units, assembly 320–
pressure switches, group DS-W–
for max. pressure build-up and relief pressure

Gear pump units for single-line centralized lubrication systems
31-1202-US
Overview table for gear pump units
Order No. Reservoir capacity Reservoir material Design features
[liters]
MFE5-KW3-2 3 Plastic Basic version with WS32-2 float switch
MFE5-KW3-2-S4 3 Plastic Basic version with WS35-2 float switch
MFE5-KW3-2-S9 3 Plastic For oil as 5 mm2/s at max. 16 bars
MFE5-KW3-S46 3 Plastic VW version
MFE5-KW3-2-S13 3 Plastic Unit for 50/95 weatherproofing (DIN 50015); WS32-2 float switch
MFE5-KW3-S24 3 Plastic Motor with HAN6ES Harting connector; WS35-S30 float switch
MFE5-BW3-2 3 Metal Basic version with WS32-2 float switch
MFE5-BW3-2-S14 3 Metal French Automotiv version (CNOMO);
WS35-2 float switch; Stäubli filler coupling
MFE5-BW3-2-S22 3 Metal For oil as 5 mm2/s at max. 16 bars
MFE5-BW3-S57 3 Metal VW version
MFE5-BW3-2-S34 3 Metal Motor UL/CSA
MFE5-BW3-2-S37 3 Metal Basic version with WS35-2 float switch
MFE5-BW3-S41 3 Metal Motor with HAN6ES Harting connector; WS35-S30 float switch
MFE5-KW6 6 Plastic Basic version with WS32-2 float switch
MFE5-KW6-S1 6 Plastic Basic version with WS35-2 float switch
MFE5-KW6-S8 6 Plastic FKM (FPM) version, WS32-S8 float switch
MFE5-KW6-S24 6 Plastic VW version
MFE5-KW6-S33 6 Plastic Motor with HAN6ES Harting connector; WS35-S30 float switch
MFE5-BW7 6 Metal Basic version with WS32-2 float switch
MFE5-BW7-CF 6 Metal Basic version with WS35-2 float switch
MFE5-BW7-S8 6 Metal FKM (FPM) version, WS32-S8 float switch
MFE5-BW7-S22 6 Metal Motor UL/CSA
MFE5-BW7-S29 6 Metal French Automotiv version (CNOMO);
WS35-2 float switch; Stäubli filler coupling
MFE5-BW7-S54 6 Metal Unit for 50/95 weatherproofing (DIN 50015); WS32-2 float switch
MFE5-BW7-S120 6 Metal VW version
MFE5-BW7-S98 6 Metal VW version with filler coupling
MFE5-BW7-S107 6 Metal Motor with HAN6ES Harting connector; WS35-S30 float switch
MFE5-BW7-V57-L 6 Metal GM / OPEL version
MFE5-BW15 15 Metal Basic version with WS32-2 float switch; wall-mounted reservoir
MFE5-BW16 15 Metal Basic version with WS35-2 float switch; wall-mounted reservoir
MFE5-BW15-S7 15 Metal Basic version with WS35-2 float switch; foot-mounted reservoir
MFE5-BW16-S111 15 Metal VW version; foot-mounted reservoir
MFE5-BW16-S93 15 Metal Motor with HAN6ES Harting connector; WS35-S30 float switch

Gear pump units for single-line centralized lubrication systems
4 1-1202-US
Gear pump unit mounted separate from oil reservoir
Order No. ME5
Gear pump unit for flange-mounting on oil reservoir
Order No. MFE5
Please quote voltage and frequency when
ordering.
A special sealed pump must be used for
horizontal flange-mounting of the unit in a
position below the oil level.
Gear pump unit model MFE5 complete with
metal or plastic reservoir (3, 6 and 15 liters)
see pages 7-9.
Fig. 1 Fig. 2
Fig. 4Fig. 3

Gear pump units for single-line centralized lubrication systems
51-1202-US
R1 P
P
S
M14x1.5
R2
ø96
149
0
44.5
63
O-ring 48x3
(4x)
M5
8.1
ø5.8
13.5
M14x1.5
87
63
ø100
88
connection
for cable
4 … 11 mm diam.
1)
1)
ß$
ß#(
S(
18
S= inlet (suction port)
P= outlet (pressure port)
R1 (ME5) =oil return from relief and
R2 (MFE5) pressure limiting valve
1) Ports tapped for solderless 8 mm diam tube connection.
Explanation of hydraulic function
Both types have the same hydraulic function.
Oil is sucked in at Sand flows under pressure through the duct in the
direction P. The oil pressure closes valve Vand opens valve E3, at the
same time closing valve E1 against spring tension. If air is entrained
(due to low oil level in the reservoir),valve Vremains open and diverts
the air or, respectively, the air-oil mixture into the return duct (see
bubble (o) marking in direction R1). Valve Callows oil under overpres-
sure to flow out into the return duct (see cross (+) marking).
When the unit stops (interval time), spring-loaded valve E1 opens and
valve E3 simultaneously closes. The system pressure at Pcan now
be released through valve E1 – with the exception of asmall amount
of residual pressure determined by valve E2. This pressure release is
required for the piston distributors to function correctly.
The pressure relief process is shown in Fig. 4.
Explanation of the structural differences
In the case of model ME5, the long screw plug D1 blocks flangedport
R2 of the return duct. The oil returning from valves V, Cand E1 flows
via port R1 through a tube to the separately mounted oil reservoir
(see Fig. 1 and 2).
In the case of model MFE5, the short screw plug D2 – unlike D1 with
model ME5 – leaves flanged port R2 open. A plug closes off external
port R1. – Flanged port R2 of the return duct drains directly into the
reservoir without any connection threads (see Fig. 3 and 4).
Technical data of the shown motor
Motor . . . . . . . . . . . . . . . . Three-phase motor
Mode of operation . . . . . . . . . . S1, 100%
Insulation class . . . . . . . . . . . . F
Rated frequency [Hz] . . . . . . . . . 50 60
Voltage [V] Y 4). . . . . . . . . . . . 400 480
Rated current [A] . . . . . . . . . . . 0.29 0.29
Rated power [kW] . . . . . . . . . . 0.075 0.09
Rated speed [rpm] . . . . . . . . . . 2700 3200
Rated flow rate [l/min] . . . . . . . . 0.5 0,.6
Operating pressure [bars] . . . . . . . 28
Operating temperature [°C] . . . . . +10 to +40
Medium . . . . . . . . . . . . . . . 20 to 1000 mm2/s
Type of enclosure acc. to DIN 50050 . IP 54
Max. suction head [mm] . . . . . . . 500
4) See page 6: “Multivoltage motors”
MFE5 unit variants *
Flow Max. back
rate 2)pressure
3)
Order No. [l/min] [bars] Design
MFE5-2000 0.5 28 Basic version, NBR,
plastic terminal box
MFE5-3041 0.5 28 Basic version, NBR,
metal terminal box
MFE5-2000-D 0.5 28 Installed below oil level,
NBR, plastic terminal box
MFE5-3000-D 0.5 28 Installed below oil level,
NBR, metal terminal box
MFE5-2008 0.5 28 Basic version, FKM (FPM),
plastic terminal box
MFE5-2009 0.25 17.5 For light oil as of 5 mm2/s, NBR
MFE5-2053 0.25 17.5 For light oil as of 5 mm2/s, FKM
MFE5-4000 0.5 28 UL/CSA-approved, NBR
MFE5-5000 0.5 28 CCC-approved, NBR
MFE5-1001 0.5 28 HAN6ES Harting connector, NBR,
Motor 180° turned
MFE5-1088 0.5 28 HAN10ES Harting connector, FKM
MFE5-S67 0.5 28 50/95 weatherproofing, NBR,
metal terminal box
*) The geometrical dimensions of the variants can deviate of Fig. 5.
2) Flow rate based on an operating viscosity of 140 mm2/s,
at a back pressure of p = 5 bars.
3) The max. back pressure is equivalent to the actual value of the built-in pressure
limiting valve. If the units are operated with a single-phase AC supply, only 60% of
the indicated pressure is permissible, i.e. a 16-bar pressure limiting valve should be
fitted to the system.
The appropriate capacitors for a frequency of 50 and 60 Hz are:
230 V ... 8 μF: order No. 179-340-007
115 V ... 30 μF: order No. 179-340-060
Fig. 5

Gear pump units for single-line centralized lubrication systems
6 1-1202-US
Multivoltage motors for pump units (assembly M..)
Many exportoriented companies have to deal with voltages/frequen-
cies that deviate from those in Germany. To make it easier for them to
buy the most common pump units for centralized lubrication systems
we have developed 3 multirange motors that cover a wide range of
three-phase voltages and frequencies.
Pump units with or without oil reservoirs are included, provided the
hydraulic power data listed in the leaflets are not exceeded (limit
values).
They are the following units:
M2, MF2, MFE2, M5, MF5, MFE5, FLM12-3, FLMF12-3, M202
Limit values for
0.2 l-units (M..2-Group): 27 bars – 2000 mm2/s eff.
0.5 l-units (M..5-Group): 27 bars – 1000 mm2/s eff.
1.2 l-units FLM12-3: 6 bars – 850 mm2/s eff.
2x0.2 l-units M202: 12 bars – 850 mm2/s eff.
Our experience shows they can meet almost every need. That means
simplified warehousing for our customers and shorter delivery times,
since we always have these 3 types of motors in stock.
Range I
130-130 V / 173-225 V, 50 Hz
120-156 V / 208-270 V, 60 Hz
order code: 199
order code ISO-F: 19E
Range III
230-290 V / 398-500 V, 50 Hz
290-346 V / 500-600 V, 60 Hz
order code: 399
order code ISO-F: 39E
Range II
207-254 V / 360-440 V, 50 Hz
249-305 V / 432-528 V, 60 Hz
order code: 299
order code ISO-F: 29E
A tailormade motor has to be used instead
of a multirange motor in the following
cases:
when the desired operating voltage cannot–
be covered by one of the three voltage
ranges,
when the operating voltage, with the volt-–
age tolerances to be expected, exceeds a
defined voltage benchmark for the range,
in the case of motors with PTC thermistor–
sensors,
for dual-circuit pump unit, e.g. M205–
in the case of motors with UL/CSA version–
for units with a 4-pole motor–
Voltage Order code
230/400 V, 50 Hz 140
230/400 V, 60 Hz 640
240/415 V, 50 Hz 150
240/415 V, 60 Hz 650
255/440 V, 50 Hz 165
255/440 V, 60 Hz 665
265/460 V, 50 Hz 175
265/460 V, 60 Hz 675
265/460 V, 60 Hz, UL 563
265/460 V, 60 Hz, CSA 676
280/480 V, 60 Hz 680
280/480 V, 60 Hz, UL 562
280/480 V, 60 Hz, CSA 681
280/480 V, 60 Hz, UL/CSA 564
115 V, 50 Hz 257
115 V, 60 Hz 757
230 V, 50 Hz 263
230 V, 60 Hz 763
115 V, 50/60 Hz 429
230 V, 50/60 Hz 428

Gear pump units for single-line centralized lubrication systems
71-1202-US
MFE5 gear pump unit
with 3 or 6-liter metal reservoir
6
26
9
19
128
Return G1/2
with screw plug
220 256 110
M14x1.5
0
13.4
19
149
170
ø7
4 counterbores
for fixing bolts
DIN 912-M6

WS
P
! "
MFE5-BW3-2
167
142
14043
222
370
M14×1.5 1)
P
WS
ø9 (4×)
300
MFE5-BW7
1) Port tapped for solderless tube
connection, for 8 mm diam. tube
2) Connection for cable
7 to 9 mm diam.
3) Connection for cable
4 to 11 mm diam.
1) Port tapped for solderless tube
connection, for 8 mm diam. tube
Flow Reservoir Reservoir Order No.
rate capacity material without
Order No. [l/min] [l] float switch
MFE5-BW3-2 0.5 3 die-cast aluminum MFE5-B3-2
MFE5-BW7 0.5 6 sheet steel MFE5-B7
Technical data
Float switch (WS) for monitoring of minimum oil level
Type of contact . . . . . . 1 changeover
Max. switching voltage . . 230 V AC / 230 V DC
Max. switching current . . 1.0 A
Max. switching capacity . . 60 VA / 40 W 4)
Type of enclosure . . . . . IP 65
Temperature range . . . . – 10 °C to + 60 °C
4) Take appropriate measures to protect contacts
when switching inductive loads.
See page 5 for further technical details.
B
? C
A
Hydraulic layout for MFE5-BW3-2
Max. 230 V AC
> Minimum
= Minimum
PE
DIN EN 175301-803-A
Circuit diagram WS
Function – float switch (WS)
When the oil drops to a minimum level, contact 1–2 opens and
contact 1–3 closes.
With plug-type connector to DIN EN 175301-803-A
Depicted: full reservoir

Gear pump units for single-line centralized lubrication systems
8 1-1202-US
MFE5 gear pump unit
with 3 or 6-liter plastic reservoir
7
7
149
13.4
0
12.5
30
M14x1.5
154
220
230
245
269
2)
1)
WS
P
130
3)
290
312
0
108
178
110
0
110
145
20
ø8.5 (3x)
M14.1.5
1)
2)
WS
P
149
95
45
13.4
0
183
min
max
3)
MFE5-KW3-2
MFE5-KW6
1) Port tapped for solderless tube
connection, for 8 mm diam. tube
2) Connection f. cable 7 to 9 mm diam.
3) Connection f. cable 4 to 11 mm diam.
1) Port tapped for solderless tube
connection, for 8 mm diam. tube
2) Connection f. cable 7 to 9 mm diam.
3) Connection f. cable 4 to 11 mm diam.
Flow Reservoir Reservoir Order No.
rate capacity material without
Order No. [l/min] [l] float switch
MFE5-KW3-2 0.5 3 plastic MFE5-K3-2
MFE5-KW6 0.5 6 plastic MFE5-K6
See page 5 for further technical details.
See page 7 for technical data on the float switch..
B
? C
A
Hydraulic layout for MFE5-KW3-2

Gear pump units for single-line centralized lubrication systems
91-1202-US
MFE5 gear pump unit
with 15-liter sheet steel reservoir
ø9 (4x)
400 x 124
426
436
Return G 1/2
with screw plug (2x)
200 304
453
2) 1)
WS
P
MFE5-BW16
Flow Reservoir Reservoir
rate capacity material
Order No. [l/min] [l] Version
MFE5-BW16 0.5 15 sheet steel foot-mounted reservoir
MFE5-BW15 wall-mounted reservoir
See page 5 for further technical details.
Technical data
Float switch (WS) to monitor the critical level of oil with advance
warning about 25 mm before the minimum oil level is reached.
Type of contact . . . . . . 2 change-over contacts (reed contacts)
Max. switching voltage . . 230 V AC / 230 V DC
Max. switching current . . 0.8 A
Max. switching capacityn . 60 VA / 40 W 3)
Type of enclosure . . . . . IP 65
Temperature range . . . . – 10 °C to + 60 °C
3) Take appropriate measures to protect contacts
when switching inductive loads.
B
? C
A A
Hydraulic layout for MFE5-BW16
Max. 230 V AC > Minimum Pre-warning
PE
DIN EN 175301-803-A
Circuit diagram WS Function – float switch (WS)
About 25 mm before the minimum oil level is
reached contact 1–3 closes.
When the minimum oil level is reached
contact 1–2 opens in addition.
With plug-type connector to
DIN EN 175301-803-A
Depicted: full reservoir
Bracket for wall mounting
Order No. 249-032.10
1) Port Ptapped for solderless
tube connection,
M14x1.5 for 8 mm diam.tube.
2) Connection for cable 7 to 9 mm diam.

Gear pump units for single-line centralized lubrication systems
10 1-1202-US
Notes

This brochure was presented by:
Order No. 1-1202-US
Subject to change without notice! (08/2008)
The contents of this publication are the copyright of the publisher and may
not be reproduced (even extracts) unless permission is granted. Every care
has been taken to ensure the accuracy of the information contained in this
publication but no liability can be accepted for any loss or damage whether
direct, indirect or consequential arising out of use of the information con-
tained herein.
All products from VOGEL may be used only for their intended purpose. If
operating instructions are supplied together with the products, the provisions
and information therein of specific relevance to the equipment must be
observed as well.
In particular, we call your attention to the fact that hazardous materials of
any kind, especially the materials classified as hazardous by EC Directive
67/548/EEC, Article 2, Par. 2, may only be filled into VOGEL centralized
lubrication systems and components and delivered and/or distributed with
the same after consultation with and written approval from VOGEL.
All products manufactured by VOGEL are not approved for use in conjunction
with gases, liquefied gases, pressurized gases in solution and fluids with a
vapor pressure exceeding normal atmospheric pressure (1013 mbars) by
more than 0.5 bar at their maximum permissible temperature.
Competence center for industrial applications
Willy Vogel Aktiengesellschaft
SKF Lubrication Solutions
Motzener Strasse 35/37 · 12277 Berlin · Germany
PF 970444 · 12704 Berlin · Germany
Tel. [phone] · Fax [phone]
[e-mail] · www.vogelag.com
© SKF Group 2006
® SKF and VOGEL are registered trademarks of the SKF Group.