SKF VR Series User manual

EN
SKF MonoFlex prelubrication distributor VR Component Lifecycle Manual
(CLM)
Version 02

Page 2
EN
SKF MonoFlex prelubrication distributor VR
Notes
Masthead
The component lifecycle manual has been
prepared in accordance with the established
standards and rules for technical documenta-
tion VDI 4500 and EN 292.
© SKF Lubrication Systems Germany GmbH
This documentation is protected by copyright.
SKF Lubrication Systems Germany GmbH
reserves all rights, including those to the pho-
tomechanical reproduction, duplication, and
distribution by means of special procedures
(e.g., data processing, data media, and data
networks) of this documentation in whole or
in part.
Subject to changes in contents and technical
information.
Service
If you have technical questions, please contact
the following addresses:
SKF Lubrication Systems Germany GmbH
Berlin Plant
Motzener Strasse 35/37
12277 Berlin
Germany
Tel. [phone]
Fax [phone]
www.skf.com/lubrication
Hockenheim Plant
2. Industriestrasse 4
68766 Hockenheim
Germany
Tel. [phone]
Fax [phone]
www.skf.com/lubrication

Page 3 EN
Table of contents
Table of contents
SKF MonoFlex prelubrication distributor VR 1
Service 2
Explanation of symbols and signs 4
1. Safety instructions 5
1.1 Intended use 5
1.2 Authorized personnel 5
1.3 System pressure hazard 6
1.4 Existing residual risks 7
2. Lubricants 8
2.1 General information 8
2.2 Selection of lubricants 8
2.3 Approved lubricants 9
3. Transport, delivery, and storage 10
3.1 Lubrication units 11
3.2 Electronic and electrical devices 11
3.3 General notes 11
3.4 Disclaimer of liability 11
4. Assembly 12
4.1 Installation information 12
4.2 Assembly holes 13
4.3 Assembly drawings with minimum
installation dimensions 14
4.4 Assembling the prelubrication
distributor VR 16
4.5 Assembly of the lubrication lines
with push-to-connect fittings 16
4.6 Metering setting on VR distributor
with adjustable metering volume 18
4.6.1 Changing the metered quantity 18
5. Functional description 20
5.1 General information 20
5.2 Single-line distributor operation 21
6. Commissioning 23
6.1 Commissioning 23
6.2 Recommissioning 23
7. Shutdown/disposal 24
7.1 Temporary shutdown 24
8. Maintenance 25
9. Malfunction 26
9.1 Malfunctions/lubrication system
malfunctions 27
10. Technical data 28
10.1 Order code 29
11. Accessories 31
11.1 SKF pipe cutter 31
11.2 Outlet screw unions 32
12. Spare parts 33

Page 4
EN Explanation of symbols
Explanation of symbols and signs
You will find these symbols, which warn of
specific dangers to persons, material assets, or
the environment, next to all safety instructions
in this manual.
Please heed these instructions and proceed
with special care in such cases. Please forward
all safety instructions to other users.
Instructions placed directly on the machines/
grease lubrication pump units, such as:
Arrow indicators
Labels for fluid connections
must be followed and kept in fully legible
condition.
You are responsible!
Please read the component lifecycle manual
thoroughly and follow the safety instructions.
Informational symbols
Safety signal words and their meaningHazard symbols
General hazard
DIN 4844-2-W000
Electrical voltage/current
Hot surface
Signal word Meaning
Danger! Danger of bodily injury
Warning! Danger of damage to prop-
erty and the environment
Note! Provides additional
information
Note
• Prompts an action
Used for itemizing
Refers to other facts, causes or
consequences
Provides additional information
Environmentally sound disposal
Danger of being drawn into machinery
DIN 4844-2-W008
DIN 4844-2-W026
BGV 8A
Slipping hazard
DIN 4844-2-W028

Page 5 EN
1. Safety instructions
In addition to the manual,
statutory regulations and other general
regulations for accident prevention
and environmental protection must be
observed and applied.
1.2 Authorized personnel
Only qualified technical personnel may install,
operate, maintain, and repair the component
described in this manual. Qualified technical
personnel are persons who have been trained,
assigned and instructed by the operator of the
final product into which the described compo-
nent is incorporated. Such persons are familiar
with the relevant standards, rules, accident
prevention regulations, and assembly condi-
tions as a result of their training, experience,
and instruction. They are authorized to identify
and perform necessary actions while avoiding
any risks which may arise.
The definition of qualified personnel and the
prohibition against employing non-qualified
personnel are laid down in DIN VDE 0105 and
IEC 364.
The described component is manufactured in
accordance with the generally accepted rules
and standards of industry practice and with
occupational safety and accident prevention
regulations. Risks may, however, arise from
its usage and may result in physical harm to
persons or damage to other material assets.
Therefore the component may only be used in
proper technical condition and in observance
of the “component lifecycle manual.” In partic-
ular, any malfunctions which may affect safety
must be remedied immediately.
1.1 Intended use
The SKF MonoFlex prelubrication distributor
of product series VR is designed for positively
driven distribution of lubricants (greases and
fluid greases up to NLGI grade 2) in a single-
line centralized lubrication system. The maxi-
mum permissible operating pressure of the VR
distributor is 315 bar. The relief pressure can be
chosen as either 30 or 70 bar. The inlet and
outlet screw unions and their connecting lines
must be designed for these parameters.
The temperature range of the VR prelubrication
distributor is - 25°C to +80°C. The lubricant
used must be suitable for elastomers (FKM/
FPM).
The technical requirements for the installation
of the VR prelubrication distributor are set out
in chapter 4, “Assembly.” These requirements
must be complied with. The same applies to the
technical specifications for the VR prelubrication
distributor in chapter 10, “Technical data.”
Any other or additional usage of the VR prelu-
brication distributor is deemed non-compliant
with the intended use.
1. Safety instructions

Page 6
EN
1.3 System pressure hazard
Lubrication systems are pressurized
during operation. Centralized lubri-
cation systems must therefore be
depressurized before starting assembly,
maintenance or repair work, or any
system modifications or system repairs.
1. Safety instructions

Page 7 EN
Residual risk Remedy
Life cycle: Assembly
Risk of slipping due to contamination by
leaked lubricant
• Promptly apply suitable binding agents and remove the leaked or spilled lubricant
• Follow statutory and company regulations for the handling of lubricants
Tearing/damage to supply and lubricant
lines when installed on moving machine
components.
• If possible, do not install on moving machine components. If it is necessary to do so, use flexible
supply and lubricant lines
Life cycle: Commissioning/operation
Lubricant spraying out due to faulty fitting of
threaded connections on lubricant lines
• Tighten all threaded connections to the appropriate torques (where specified). Use threaded con-
nections and lubricant lines suitable for the indicated operating pressures. Check all threaded connec-
tions and lubricant lines for correct connection and damage before putting into operation
Risk of slipping due to contamination of floor
by leaked lubricant
• Promptly apply suitable binding agents and remove the leaked lubricant
• Follow statutory and company regulations for the handling of lubricants
Life cycle: Setup, retrofit
Life cycle: Malfunctions, fault-finding
Life cycle: Maintenance, repair
Life cycle: Decommissioning, disposal
Risk of slipping due to contamination of floor
by leaked lubricant
• Promptly apply suitable binding agents and remove the leaked or spilled lubricant
• Follow statutory and company regulations for the handling of lubricants
1.4 Existing residual risks
1. Safety instructions

Page 8
EN
2. Lubricants
2.1 General information
All components from SKF Lubrication
Systems Germany GmbH may be used
only for their intended purpose and in
accordance with the information in this
manual.
Intended use is the use of the components
for the purpose of providing centralized lu-
brication/lubrication of bearings and friction
points or volumetric flow control in hydraulic
systems, within the physical usage limits which
can be found in the documentation for the
device, e.g. assembly instructions/operating
instructions and the product descriptions, e.g.
technical drawings and catalogs.
Particular attention is called to the fact that
hazardous materials of any kind, especially
the materials classified as hazardous by EC
Directive 67/548/EEC, Article 2, Para. 2, may
only be filled into SKF centralized lubrication
systems and components and delivered and/or
distributed with such systems and components
after consulting with and obtaining written ap-
proval from SKF Lubrication Systems Germany
GmbH. No components manufactured by
SKF Lubrication Systems Germany GmbH are
approved for use in conjunction with gases,
liquefied gases, pressurized gases in solution,
vapors, or such fluids whose vapor pressure
exceeds normal atmospheric pressure (1013
mbar) by more than 0.5 bar at their maximum
permissible temperature.
Other media which are neither lubricant nor
hazardous substance may only be fed after
consultation with and written approval from
SKF Lubrication Systems Germany GmbH.
SKF Lubrication Systems Germany GmbH
considers lubricants to be a component of the
system design and must be factored into the
selection of components and the design of
centralized lubrication systems. The lubricating
properties of the lubricants are critically im-
portant in making these selections.
2.2 Selection of lubricants
Observe the instructions from the
machine manufacturer regarding the
lubricants that are to be used.
Warning!
The amount of lubricant required at
a lubrication point is specified by the
bearing or machine manufacturer. It
must be ensured that that the required
quantity of lubricant is provided to the
lubrication point. The lubrication point
may otherwise not receive adequate
lubrication, which can lead to damage
and failure of the bearing.
The selection of a lubricant suitable for the lu-
brication task is made by the machine/system
manufacturer and/or the operator of the ma-
chine/system in cooperation with the lubricant
supplier.
When selecting a lubricant, the type of bear-
ing/friction point, their expected load during
operation, and the anticipated ambient condi-
tions must be taken into account. All economic
and environmental aspects must also be
considered.
2. Lubricants

Page 9 EN
2. Lubricants
SKF Lubrication Systems Germany
GmbH supports customers
in the selection of suitable components
for feeding the selected lubricant and in
the planning and design of a
centralized lubrication system.
Please contact SKF Lubrication Systems
Germany GmbH if you have further questions
regarding lubricants. Lubricants can be tested
in the company's laboratory for their suitability
for pumping (e.g. bleeding characteristics) and
for use in centralized lubrication systems.
You can request an overview of the lubricant
tests offered by SKF Lubrication Systems
Germany GmbH from the company's Service
department.
2.3 Approved lubricants
Only lubricants approved for the
component may be used. Unsuitable
lubricants can lead to failure of the
components and damage to property.
Different lubricants must not be mixed,
as mixing may result in damage and
necessitate costly and complicated
cleaning of the components/lubrica-
tion system. It is recommended that
an indication of the lubricant in use be
attached to the lubricant reservoir in
order to prevent accidental mixing of
lubricants.
The described components can be operated
using lubricants that meet the specifications in
the technical data. Depending on the compo-
nent design, these lubricants may be oils, fluid
greases, or greases.
Oils and base oils may be mineral, synthetic
and/or rapidly biodegradable.
Consistency agents and additives may be add-
ed depending on the operating conditions.
Note that in rare cases, there may be lubricants
whose properties are within the permissible
limits values but whose other characteristics
render them unsuitable for use in centralized
lubrication systems. For example, synthetic lu-
bricants may be incompatible with elastomers.

Page 10
EN
2.4 Lubricants and the environment
Lubricants can contaminate soil and
bodies of water. Lubricants must be
properly used and disposed of. Observe
the local regulations and laws regarding
the disposal of lubricants.
It is important to note that lubricants are envi-
ronmentally hazardous, flammable substances
which require special precautionary measures
during transport, storage, and processing.
Consult the safety data sheet from the lubri-
cant manufacturer for information regarding
transport, storage, processing, and environ-
mental hazards of the lubricant that will be
used.
The safety data sheet for a lubricant can be
requested from the lubricant manufacturer.
2. Lubricants/ 3. Transport, delivery, and storage
2.5 Lubricant hazards
Centralized lubrication systems must
always be free of leaks. Leaking lu-
bricant is hazardous due to the risk of
slipping and injury. Be mindful of any
lubricant leaking out during assembly,
operation, maintenance, and repair of
centralized lubrication systems. Leaks
must be sealed off without delay.
Lubricant leaking from centralized lubrication
systems is a serious hazard. Leaking lubricant
can create risks that may result in physical
harm to persons or damage to other material
assets.
Follow the safety instructions on the
lubricant's safety data sheet.
Lubricants are a hazardous substance. Follow
the safety instructions on the lubricant's safety
data sheet. The safety data sheet for a lu-
bricant can be requested from the lubricant
manufacturer.
3. Transport, delivery, and
storage
Warning!
Do not drop the component.
SKF Lubrication Systems Germany GmbH
components are packaged in accordance with
standard commercial practice according to
the regulations of the recipient's country and
DIN ISO 9001. During transport, safe han-
dling must be ensured; the components must
be protected from mechanical effects such
as impacts. The transport packaging must be
marked "Do not drop!"
There are no restrictions for land, air, or sea
transport.
After receipt of the shipment, the
component(s) must be inspected for damage
and for completeness according to the ship-
ping documents. The packaging material must
be preserved until any discrepancies are re-
solved.
SKF Lubrication Systems Germany GmbH
components are subject to the following stor-
age conditions:

Page 11 EN
3. Transport, delivery, and storage
3.1 Lubrication units
Ambient conditions: dry and dust-free
sur roundings, storage in well ventilated
dry area
Storage time: max. 24 months
Permissible humidity: < 65%
Storage temperature: 10 - 40°C
Light: avoid direct sun or UV exposure
and shield nearby sources of heat
3.2 Electronic and electrical devices
Ambient conditions: dry and dust-free
surroundings, storage in well ventilated
dry area
Storage time: max. 24 months
Permissible humidity: < 65%
Storage temperature: 10 - 40°C
Light: avoid direct sun or UV exposure and
shield nearby sources of heat
3.4 Disclaimer of liability
SKF Lubrication Systems Germany GmbH
shall not be held liable for damages:
Caused by contaminated or unsuitable
lubricants
Caused by the installation of non-original
SKF components or SKF spare parts
Caused by inappropriate usage
Resulting from improper assembly, con
figuration or filling
Resulting from improper response to mal-
functions
Caused by independent modification of sys-
tem components
Only media approved for these components
may be used. Unsuitable media may result
in component failure and potentially severe
bodily injury or death and property damage.
3.3 General notes
The product(s) can be enveloped in plastic
film to provide low-dust storage.
Protect against ground moisture by
storing on a shelf or wooden pallet.
Bright-finished metallic surfaces, especially
wearing parts and assembly surfaces, must
be protected using long-term anti-corrosive
agents before storage.
At approx. 6-month intervals: Check for
corrosion. If there are signs of corrosion,
reapply anti-corrosive agents.
Drives must be protected from mechanical
damage.

Page 12
EN 4. Assembly
4. Assembly
4.1 Installation information
The SKF MonoFlex prelubrication distributor
of product series VR is designed for positively
driven distribution of lubricants (greases and
fluid greases up to NLGI grade 2) in a central-
ized lubrication system. The VR distributor can
be used in the context of the technical speci-
fications given in the “Technical data” chapter.
It can be mounted in any alignment. The pre-
lubrication distributor is available in a version
with non-adjustable metering volume and
a version with adjustable metering volume.
The metering nipples have a mark indicating
the metered quantity. All metering nipples are
equipped standard with an indicator pin that
allows visual monitoring of the metering func-
tion. Conversion at a later date is not possible.
For technical reasons, it is likewise not possible
to retrofit unused metering points or to switch
metered quantities to yield different metered
quantities.
To prevent flow resistance, ensure that both
the customer's supply line and the output lines
are sufficiently large.
The VR should be protected from humidity and
vibration and should be installed in an easily
accessible position. The minimum installation
dimensions (section 4.3) should be adhered to
so that all other components can be connected
later without problems. During assembly and
during any drilling work, always pay attention
to the following:
Before installing the VR, ensure that all
holes, push-to-connect fittings, and con-
necting lines in contact with the VR are
clean and free of metal chips.
Existing supply lines must not be damaged
by assembly work.
The installation work must not damage
other units.
The VR prelubrication distributor must not
be installed within range of moving parts.
The VR prelubrication distributor must
be installed at an adequate distance from
sources of heat.
Maintain safety clearances and comply
with local regulations for assembly and
accident prevention.

Page 13 EN
Assembly holes for prelubrication distributor of series VR, Fig. 1
4.2 Assembly holes
4. Assembly
A±0.5
C±0.5
5.5
±0.3
Ø6.6
1 2 3 10 11 12
B
49
28
Key to Fig. 1
Number of Dim. A Dim. B Dim. C
modules [mm] [mm] [mm]
1 42 21
2 57 28.5
3 72 20 32
4 87 18.5 50
5 102 26 50
6 117 33.5 50
7 132 41 50
8 147 48.5 50
9 162 56 50
10 177 63.5 50
11 192 71 50
12 207 78.5 50

Page 14
EN 4. Assembly
4.3 Assembly drawings with minimum installation dimensions
Assembly drawings with minimum installation dimensions, Fig. 2
G1/8*
G
H
F = D+B+E+ 20
DE
J
15°
49
94.5
21.5 1)
94.5
26.5 1)
Ø 19.5 0.5
Left Right
deep
Depth 8 mm
Pipe Ø 4 mm Pipe Ø 6 mm
With non-adjustable metering With adjustable metering
1) At greatest metering setting

Page 15 EN
4. Assembly
Torques
Item [Nm]
Metered quantity
Metering nipple, non-adj. 9
Metering nipple, adjustable 9
Screw plug 9
Lubrication point
Push-to-connect fitting VS 3.5
Compression fitting,
tapered thread
-
Screw plug 8
Main line
Inlet 9
Outlet 9
Dimensions for Fig. 2
Number of outlets 1 2 3 4 5 6 7 8 9 10 11 12
Dimension A [mm] Central Central 32 50
Dimension B [mm] 42 57 72 87 102 117 132 147 162 177 192 207
Dimension C [mm] 21 28.5 20 20 26 33.5 41 48.5 56 63.5 71 78.5
Connection dimensions
Fitting for main line
connection
Dim. D
Dim. E
[mm]
EO2 union,
Ø 8 mm 25
EO2 union,
Ø 10 mm 26
Compression fitting,
Ø 8 mm 26
Compression fitting,
Ø 10 mm 27
Screw plug 10
Minimum mounting dimensions
Dim. [mm]
FF = dim. D + B + E + 20
G Approx. 130
H (49 + J) =
Push-to-connect fitting VS, Ø4 66
Push-to-connect fitting VS, Ø6 69
Compression fitting 70
Screw plug 54

Page 16
EN
-See section 4.2, Figure 1
-See section 4.3, Figure 2
Check the parallelism of the surface on
which the component is to be installed.
Stress-free installation of the component
must be guaranteed.
Check for any fouling on the threaded
holes for distributor installation and on the
surface on which the component is to be
installed, and clean if needed
Place the prelubrication distributor VR on
the installation surface and screw finger-
tight with hexagon socket head cap
screws to EN ISO 4762, M6x35-8.8
(recommendation)
Align the prelubrication distributor VR
Tighten the hexagon socket head cap
screws with a torque of 9 Nm
4.4 Assembling the prelubrication
distributor VR
4.5 Assembly of the lubrication lines with push-to-connect fittings
Danger – high pressure!
If the lubrication system is under pres-
sure, it must first be depressurized
completely.
The SKF push-to-connect fittings are avail-
able in versions for metal or plastic pipes. With
the version for metal pipes, there is a further
choice available between pipe versions with and
without claw groove. The claw groove securely
fastens the pipe in the fitting, which prevents
the metal pipe from slipping out of the SKF
push-to-connect fitting. The claw groove does
not need to be used if appropriate fasten-
ing hardware (e.g., mounting clips) is used to
prevent the pipe from slipping out of the SKF
push-to-connect fitting.
Both versions, for metal and plastic pipes,
have a locking claw. The locking claw of the
collet secures the pipe in the SKF push-to-
connect fitting, which prevents the pipe from
accidentally slipping out, at least in the case of
the version for plastic pipes.
Cut the connecting pipe (1) to the right
length with a pipe cutter (see Accessories)
In the following installation of the pipe, a
noticeable resistance must be overcome
when passing through the first O-ring (2),
the locking claw (5) of the collet (4). If a
claw groove is not used, fix the pipe us-
ing appropriate fastening hardware (e.g.,
mounting clips) to prevent the pipe from
slipping out of the SKF push-to-connect
fitting.
Manually insert the pipe (1) fully into the
collet (4) of the SKF push-to-connect fit-
ting until it clears the first O-ring (2) and
the locking claw (5) of the collet (4) and
reaches the mechanical stop (3).
4. Assembly

Page 17 EN
To remove the metal pipe (1), press the
collet (4) inward into the SKF push-to-
connect fitting. The metal pipe (1) can now
be pulled out of the collet (4) of the SKF
push-to-connect fitting.
To remove the plastic pipe (1), press the
collet (4) inward into the SKF push-to-
connect fitting. To do this, press the plastic
pipe (1) inward into the SKF push-to-con-
nect fitting, which releases the collet (4)
from the plastic pipe (1). The plastic pipe
(1) can now be pulled out of the collet (4)
of the SKF push-to-connect fitting.
Before reassembling, shorten the end of
the plastic pipe by at least 7 mm to en-
sure that the locking claw (5) of the collet
(4) functions properly.
SKF push-to-connect fittings for metal pipes,
Fig. 3
SKF push-to-connect fittings for plastic pipes,
Fig. 4
Metal pipe (1)Plastic pipe (1)
Collet (4)Collet (4)
First O-ring (2)First O-ring (2)
Claw groove
Locking claw (5)Locking claw (5)
Mechanical stop (3)Mechanical stop (3)
4. Assembly

Page 18
EN 4. Assembly
4.6 Metering setting on VR distributor
with adjustable metering volume
see Figure 5
Warning!
The setting screw must not be screwed
in more than 10 turns from its upper
end stop (metered quantity is then
0.1cm³).
If the setting screw is screwed in
further, the precise metering of the VR
distributor can no longer be guaranteed
in technical terms.
The maximum torque applied to the
setting screw should not exceed 5 Nm.
Otherwise the metering unit can be
damaged, especially at the end stops.
4.6.1 Changing the metered quantity
See Figure 5
VR distributors with adjustable metering are
supplied from the factory set to the largest
metered quantity setting (1.1 cm³, setting
screw at its upper end stop).
Reducing the metered quantity:
Screw the setting screw (2) into the dis-
tributor (clockwise) to set a smaller me-
tered quantity. One full turn of this screw
equals a metered quantity of 0.1cm³.
Increasing the metered quantity:
To set the metered quantity with maximum
certainty, it is recommended to set the set-
ting screw to the highest metered quantity
(1.1cm³) by unscrewing it up to its end
stop (counter-clockwise).
Starting from that position, you can then
set the desired metering by turning the
setting screw clockwise.
To set a relatively small metered quantity, the
following steps should be followed:
Release the locknut (1)
Every full clockwise turn of the setting
screw (2) equals a reduction of the me-
tered quantity by 0.1cm³
Use a hexagon socket screw key (size 4
mm) to set the setting screw (2) to the
right metered quantity (clockwise).
Tighten the locknut (1) (to approx. 6 Nm)
See Table 1
The set metered quantity can be checked
by using a caliper gauge to check the free
length (L) of the setting screw.

Page 19 EN
Metering setting, Fig. 5
1 2
Table 1
Determining the set metered quantity
Quantity Free length (L) of setting screw
[cm³] [approx. mm]
0.1 10
0.2 11
0.4 13
0.6 15
0.8 17
1.0 19
1.1 20
Locknut 1
Setting screw 2
Metering nipple
4. Assembly
Hexagon socket screw key, size 4 mm

Page 20
EN
5. Functional description
5.1 General information
SKF MonoFlex single-line distributors in the
product series VR are 1- to 12-port prelubri-
cation distributors. They are used in MonoFlex
single-line centralized lubrication systems to
supply fluid greases and greases up to NLGI
Grade 2.
With high pressure resistance of up to 315
bar, selectable relief pressures of 30 or 70
bar, and a low ambient temperature range to
-25°C, this single-line distributor has a wide
range of application.
SKF MonoFlex single-line distributors of product
series VR are designed for corrosivity category
C3 per DIN EN ISO 12944 and are certified by
Germanischer Lloyd (GL Wind).
The VR single-line distributor comes with a
non-adjustable output or, optionally, with ad-
justable output. For non-adjustable distribu-
tors, the possible metering quantities range
from 0.1 to 1.3 cm³ per stroke, and for ad-
justable distributors, from 0.1 to 1.1 cm³ per
stroke.
A marking is shown on the housing. This indi-
cates the current metering setting, which can
be read on the figure on the metering nipple
(see Figure 5).
All metering nipples are equipped standard
with an indicator pin that allows visual moni-
toring of the metering function.
The lubrication point line is connected to the
single-line distributor using SKF push-to-con-
nect fitting. If SKF push-to-connect fittings are
not used, there is a threaded connector of size
G 1/8 available (see Accessories, section 11.2).
If not all metering points will be used, there
is the option of ordering individual metering
points without metering on a single-line dis-
tributor.
Retrofitting of unused metering points is not
possible.
The components made of elastomers inside
the single-line distributor are made of FKM
(FPM). The distributor body is made from alu-
minum, with its surface anodized for perma-
nent protection from corrosion.
The main line connection on the distributor
body has an G 1/4 thread.
SKF MonoFlex single-line distributors of
product series VR can be equipped with
fittings for the main line connection.
Compression fittings (DIN 2353) for pipe di-
ameters 8 mm or 10 mm or screw plugs are
available, compatible with the thread size on
the main line connection (see Accessories
catalog 1-0103-EN and Push-to-connect fitting
catalog 1-0103-1-EN).
5. Functional description