Compressed air quality
ensures good quality food!
The quick and clean way
for safe food production:
Service unit combinations
ex stock, consisting of
MS-series modules
Systematically modular: MS series
Systematically more modular
the MS-series
Consistent modularity and a
winning design put the MS-series
in a class of its own. Combined
with a wealth of functionalities
and air qualities, the only thing
for you to define is the desired
compressed air quality.
However, Festo offers far more
than just quality components.
Festo means all-round support
with Industrial Services.
For example, for all those users
who cannot find a suitable
combination here because their
requirements are too specific:
the configurator in our electronic
catalogue:
http://www.festo.com/catalogue
Different systems require
different compressed air
qualities and flow rates.
Special functions and a design-
optimised environment are the
ideal application area for the
MS-series. Flow values of 700
to 5100 l/min meet virtually
any challenge.
MS or D-series:
This depends on the task in hand!
Mo
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Sturdy design;
standardisation
New:
MS-series
D-series
Dirt and rust particles:
Solid particles occur in the form
of dust (carbon, rust particles )
and are present at build-up
points. Coastal areas are
generally less dusty, but instead
are subject to salt particles from
evaporated sea water droplets.
Dust is divided into the following
categories:
Coarse dust (> 10 m),
fine dust (1 10 m)
and superfine dust (< 1 m).
Oil contamination:
Even if oil-free compressors are
used, oil particles are drawn in
from the ambient air. Since this
oil is generally not specifically
intended for the lubrication of
pneumatic components, there
is a risk of damage to delicate
components and in a worst case
scenario the contamination of
food.
Air humidity and condensation:
The maximum water absorption
capacity of air greatly depends
on temperature, irrespective of
pressure. The volume of air
absorbed is specified in g per m3.
With increasing temperature,
the quantity of water absorbed
increases. Conversely, large
quantities of water are released
if the temperature cools down.
This leads to corrosion and
damage in the compressed air
system and on the components
connected. The use of compres-
sed air dryers eliminates such
problems from the outset. In
addition to this, the use of a
compressed air dryer is recom-
mended for the processing of
dried food.
Air is not always as clean as it
appears to be! Particularly when
used in the food and packaging
industry, a further important
point needs to be considered
since, as part of an HACCP audit,
compressed air also comes under
the scrutinity of the certificating
authority!
Why the need for compressed air preparation?
The following applications have
particularly high requirements
regarding compressed air in the
food and packaging industry:
Non dried foods
Compressed air comes into
direct contact with non dried
foods (e.g. drinks, meat,
vegetables etc.)
Compressed air is used for
transporting, mixing or for the
production of food in general
and is therefore in direct contact
with food.
Compressed air quality is
generally categorised into the
following quality classes in
accordance with DIN ISO 8573-1:
1. Quality class of solid
contamination
2. Quality class for water content
3. Quality class for overall
oil content
Packaging machines
Compressed air comes into
direct contact with packaging
materials which are subsequently
filled with food. The packaging
material therefore becomes part
of the food zone.
For both instances the following
classification applies for
compressed air quality in
accordance with DIN ISO 8573-1:
Dust: Class 1
Water: Class 4
Oil: Class 1
Compressed air qualities to DIN ISO 8573-1:
Class Residual dust Residual water Residual oil
m mg/m3 DTP g/m3 mg/m3
1 0.1 0.1 70 0.003 0.01
2 1 1 40 0.12 0.1
3 5 5 20 0.88 1
4 15 8 + 3 6.0 5
5 40 10 + 7 7.8 25
6 + 10 9.4
7 not not
specified specified
This recommendation applies to all air compressors, regardless of com-
pression method or mechanical design.
A simple rule of thumb applies
for the definition of compressed
air quality in the food and packa-
ging industry:
The compressed air must
be so clean as to damage neither
the product or in the worst case
scenario, the consumer.
Compressed air qualities in the food
and packaging industry
If compressed air quality 1.2.1
is required, we recommend the
use of compressed air quality
1.4.1 generated with the aid of
one of the combinations of
devices described here, using
the Festo adsorption dryer
type LDF for drying. The dryer
should be interconnected down-
stream of the filter regulator LFR
or branching module FRM and
upstream of the microfilters.
A typical service unit combi-
nation for the processing of
non dried foodstuffs:
LFR: Filter regulating valve
5 m grade of filtration
FRM: Branching module
Branching option for standard
compressed air
LFM: Microfilter (fine filter)
1 m grade of filtration
LFM: Microfilter (finest filter)
0.01 m grade of filtration
Classification in accordance
with ISO 8573-1:
Dust: Class 1
Water: Class 4
Oil: Class 1
Examples of predefined service units ex stock
Maximum possible safety
Compliance with the compressed
air qualities listed here is
imperative in order to ensure
the maximum possible safety of
food and to protect the health of
the consumer true to the motto
of food producers: Protecting
the brand!
Dried foods
Compressed air comes into direct
contact with dried foods
Compressed air is used for the
transporting, mixing or for the
production of food in general
and therefore comes into direct
contact with foodstuffs. However,
in this case even more stringent
requirements apply since air
humidity plays a major role!
For such applications the
following classifications in
accordance with DIN ISO 8573-1
should be considered:
Dust: Class 1
Water: Class 2
Oil: Class 1
LFR FRM LFM LFM
Compressed air quality: 1.4.1 Smallest combination
for decentralised compressed air preparation
Connection size: G 1/4
Mounting type: Wall mounting WP
Position 1: LFR: Filter regulator valve
Pressure range of 0.5 to 12 bar
5 m grade of filtration
Position 2: LFM-B: Microfilter
1 m grade of filtration
Position 3: LFM-A: Microfilter
0.01 m grade of filtration
Flow rate: qnN ~ 100 l/min [p = 70 mbar]
qmax = 360 l/min
Part No.: 531029
Order code: MSB4-1/4:J4:I1:I3-WP
Assortment of service units combinations
for the food industry: MS4
MS4A typical service unit combi-
nation for the processing of
dried foodstuffs:
LFR: Filter regulating valve
5 m grade of filtration
FRM: Branching module
Branching option for standard
compressed air
LFM: Microfilter (fine filter)
1 m grade of filtration
LDF: Adsorption dryer
(with integrated microfilter
0.01 m at input and microfilter
1 m at output)
LFM: Microfilter (finest filter)
0.01 m grade of filtration
FRM: Branching module
Branching option: compressed
air for applications with
demanded compressed air
quality 1.2.1
LFX: Active carbon filter
Odourless
Classification in accordance
with ISO 8573-1:
Dust: Class 1
Water: Class 2
Oil: Class 1
LFR FRM LFM
LFM
LDF
FRM LFX
MS4Compressed air quality: 1.4.1 Branching option
for standard compressed air and electrical on/off valve
Connection size: G 1/4
Mounting type: Wall mounting WP
Position 1: EE: Electrical on/off valve, 24 V DC
Position 2: LFR: Filter regulating valve
Pressure range 0.5 to 12 bar
5 m grade of filtration
Position 3: FRM: Branching module
Position 4: LFM-B: Microfilter
1 m grade of filtration
Position 5: LFM-A: Microfilter
0.01 m grade of filtration
Flow rate: qnN ~ 100 l/min [p = 70 mbar]
qmax = 360 l/min
Flow rate downstream of branching module:
qnN ~ 1100 l/min [p = 1 bar]
Part No.: 531029
Order code: MSB4-1/4:D1:J4:F1:I1:I3-WP
Compressed air quality: 1.4.1 Branching option
for standard compressed air and manual on/off valve
Connection size: G 1/4
Mounting type: Wall mounting WP
Position 1: EM: Manual on/off valve
Position 2: LFR: Filter regulating valve
Pressure range 0.5 to 12 bar
5 m grade of filtration
Position 3: FRM: Branching module
Position 4: LFM-B: Microfilter
1 m grade of filtration
Position 5: LFM-A: Microfilter
0.01 m grade of filtration
Flow rate: qnN ~ 100 l/min [p = 70 mbar]
qmax = 360 l/min
Flow rate downstream of branching module:
qnN ~ 1100 l/min [p = 1 bar]
Part No.: 531029
Order code: MSB4-1/4:C1:J4:F1:I1:I3-WP
MS4
MS4Compressed air quality: 1.4.1 Odourless
with manual on/off valve
Connection size: G 1/4
Mounting type: Wall mounting WP
Position 1: EM: Manual on/off valve
Position 2: LFR: Filter regulating valve
Pressure range 0.5 to 12 bar
5 m grade of filtration
Position 3: LFM-B: Microfilter
1 m grade of filtration
Position 4: LFM-A: Microfilter
0.01 m grade of filtration
Position 5: LFX: Active carbon filter
Flow rate: qnN ~ 100 l/min [p = 70 mbar]
qmax = 360 l/min
Part No.: 531029
Order code: MSB4-1/4:C1:J4:I1:I3:L1-WP
MS4Compressed air quality: 1.4.1 Odourless
Connection size: G 1/4
Mounting type: Wall mounting WP
Position 1: LFR: Filter regulating valve
Pressure range of 0.5 to 12 bar
5 m grade of filtration
Position 2: LFM-B: Microfilter
1 m grade of filtration
Position 3: LFM-A: Microfilter
0.01 m grade of filtration
Position 4: LFX: Active carbon filter
Flow rate: qnN ~ 100 l/min [p = 70 mbar]
qmax = 360 l/min
Part No.: 531029
Order code: MSB4-1/4:J4:I1:I3:L1-WP
Assortment of service units combinations
for the food industry: MS6
MS6Compressed air quality: 1.4.1 Smallest combination
for decentralised compressed air preparation
Connection size: G 3/8
Mounting type: Wall mounting WP
Position 1: LFR: Filter regulating valve
Pressure range 0.5 to 12 bar
5 m grade of filtration
Position 2: LFM-B: Microfilter
1 m grade of filtration
Position 3: LFM-A: Microfilter
0.01 m grade of filtration
Flow rate: qnN ~ 400 l/min [p = 70 mbar]
qmax = 900 l/min
Part No.: 531030
Order code: MSB6-3/8:J4:I1:I3-WP
MS4Compressed air quality: 1.4.1 Odourless
with electrical on/off valve
Connection size: G 1/4
Mounting type: Wall mounting WP
Position 1: EE: Electrical on/off valve, 24 V DC
Position 2: LFR: Filter regulating valve
Pressure range 0.5 to 12 bar
5 m grade of filtration
Position 3: LFM-B: Microfilter
1 m grade of filtration
Platz 4: LFM-A: Microfilter
0.01 m grade of filtration
Platz 5: LFX: Active carbon filter
Flow rate: qnN ~ 100 l/min [p = 70 mbar]
qmax = 360 l/min
Part No.: 531029
Order code: MSB4-1/4:D1:J4:I1:I3:L1-WP
MS6Compressed air quality: 1.4.1 Odourless
Connection size: G 3/8
Mounting type: Wall mounting WP
Position 1: LFR: Filter regulator valve
Pressure range 0.5 to 12 bar
5 m grade of filtration
Position 2: LFM-B: Microfilter
1 m grade of filtration
Position 3: LFM-A: Microfilter
0.01 m grade of filtration
Position 4: LFX: Active carbon filter
Flow rate: qnN ~ 400 l/min [p = 70 mbar]
qmax = 900 l/min
Part No.: 531030
Order code: MSB6-3/8:J4:I1:I3:L1-WP
MS6Compressed air quality: 1.4.1 With membrane dryer
Connection size: G 3/8
Mounting type: Wall mounting WP
Position 1: LFR: Filter regulator valve
Pressure range 0.5 to 12 bar
5 m grade of filtration
Position 2: LFM-B: Microfilter
1 m grade of filtration
Position 3: LFM-A: Microfilter
0.01 m grade of filtration
Position 4: LDM: Membrane dryer, cartridge 3
Flow rate: qnN ~ 300 l/min [p = 70 mbar]
qmax = 900 l/min
Part No: 531030
Order code: MSB6-3/8:J4:I1:I3:G1-WP
MS6Compressed air quality: 1.4.1 Odourless
with manual on/off valve
Connection size: G 3/8
Mounting type: Wall mounting WP
Position 1: EM: Manual on/off valve
Position 2: LFR: Filter regulating valve
Pressure range 0.5 to 12 bar
5 m grade of filtration
Position 3: LFM-B: Microfilter
1 m grade of filtration
Position 4: LFM-A: Microfilter
0.01 m grade of filtration
Position 5: LFX: Active carbon filter
Flow rate: qnN ~ 400 l/min [p = 70 mbar]
qmax = 900 l/min
Part No.: 531030
Order code: MSB6-3/8:C1:J4:I1:I3:L1-WP
MS6Compressed air quality: 1.4.1 Odourless
with membrane dryer
Connection size: G 3/8
Mounting type: Wall mounting WP
Position 1: LFR: Filter regulator valve
Pressure range of 0.5 to 12 bar
5 m grade of filtration
Position 2: LFM-B: Microfilter
1 m grade of filtration
Position 3: LFM-A: Microfilter
0.01 m grade of filtration
Position 4: LDM: Membrane dryer, cartridge 3
Position 5: LFX: Active carbon filter
Flow rate: qnN ~ 300 l/min [p = 70 mbar]
qmax = 900 l/min
Part No.: 531030
Order code: MSB6-3/8:J4:I1:I3:G1:L1-WP
MS6Compressed air quality: 1.4.1 Branching option
for standard compressed air and manual on/off valve
Connection size: G 3/8
Mounting type: Wall mounting WP
Position 1: EM: Manual on/off valve
Position 2: LFR: Filter regulating valve
Pressure range 0.5 to 12 bar
5 m grade of filtration
Position 3: FRM: Branching module
Position 4: LFM-B: Microfilter
1 m grade of filtration
Position 5: LFM-A: Microfilter
0.01 m grade of filtration
Flow rate: qnN ~ 400 l/min [p = 70 mbar]
qmax = 900 l/min
Flow rate downstream of branching module:
qnN ~ 3300 l/min [p = 1 bar]
Part No.: 531030
Order code: MSB6-3/8:C1:J4:F1:I1:I3-WP
MS6Compressed air quality: 1.4.1 Odourless
with electrical on/off valve
Connection size: G 3/8
Mounting type: Wall mounting WP
Position 1: EE: Electrical on/off valve 24 V DC
Position 2: LFR: Filter regulating valve
Pressure range 0.5 to 12 bar
5 m grade of filtration
Position 3: LFM-B: Microfilter
1 m grade of filtration
Position 4: LFM-A: Microfilter
0.01 m grade of filtration
Position 5: LFX: Active carbon filter
Flow rate: qnN ~ 400 l/min [p = 70 mbar]
qmax = 900 l/min
Part No.: 531030
Order code: MSB6-3/8:D1:J4:I1:I3:L1-WP
MS-series: Single components
electrical EE
Electrical on/off valves for use
wherever manual access is difficult.
These permit maximum flexibility
for positioning. Integrated manual
override ensures safety in the event
of an emergency. 3/2-way valve
for exhausting to atmosphere. An
optional silencer is also available.
Actuation with 24 V, 110 V or 230 V.
manual EM
Manual on/off valves for use
wherever problem-free access to
a service unit is possible. With
integrated lockability as standard.
3/2-way valve for exhausting to
atmosphere, with optional silencer.
On-Off valve MS6Compressed air quality: 1.4.1 Branching option
for standard compressed air and electrical on/off valve
Connection size: G 3/8
Mounting type: Wall mounting WP
Position 1: EE: Electrical on/off valve 24 V DC
Position 2: LFR: Filter regulating valve
Pressure range 0.5 to 12 bar
5 m grade of filtration
Position 3: FRM: Branching module
Position 4: LFM-B: Microfilter
1 m grade of filtration
Position 5: LFM-A: Microfilter
0.01 m grade of filtration
Flow rate: qnN ~ 400 l/min [p = 70 mbar]
qmax = 900 l/min
Flow rate downstream of branching module:
qnN ~ 3300 l/min [p = 1 bar]
Part No.: 531030
Order code: MSB6-3/8:D1:J4:F1:I1:I3-WP
LFR
Functional integration of filter and
regulator tasks. A combination of
the LR and LF offering the advan-
tages of both of these devices.
It is also space saving since the
units are integrated into one.
Particularly suitable for prefiltration.
Equipped with a manual or
fully automatic condensate drain.
Filter
regulator
LF
5 different grades of filtration: Filter
LF with 40 m or 5 m. Fine filter
LFM with 1 m, micro filter LFM
with 0.01 m and the active carbon
filter LFX for a residual oil content
of 0.003 mg/m3. With manual or
fully automatic condensate drain.
The latching mechanism of the
filter bowl reduces the risk of
accidents.
Filter
LF, LFM, LFX
Branching
module FRM
Tapping of pre-filtered and
regulated compressed air possible
in all four directions. Connection
of pressure sensors (PEV/SDE1) for
precision monitoring of secondary
pressure.
Wall mountings
Wall mountings in various dimen-
sions wide or narrow dimensions
for module by module attachment.
Alternatively, all modules can
be built together and then mounted
as a service unit.
Mountings
MA--RG
Standard pressure gauge housing-
Diameters: 40, 50 and 63 mm.
Especially designed for TPM
measures. Scale with printed on
green segment. Two adjustable
tolerance segments (red).
R/G pressure
gauge
LDM
Less humidity thanks to pressure
dew point reduction by 13 Kelvin.
Maintenance-free, since no wearing
parts.
Membrane
dryer
Festo AG & Co. KG
PO Box
73726 Esslingen
Germany
Internet www.festo.com
Telefon +49 (0) 7 11/347-0
Fax +49 (0) 7 11/347-21 44
E-mail service_international
@festo.com 50
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