MS4-LFR-...-B
Filter regulator
Festo SE & Co. KG
Ruiter Straße 82
73734 Esslingen
Deutschland
+49 711 347-0
www.festo.com
Operating instructions
8160211
2021-06a
[8160213]
Translation of the original instructions
© 2021 all rights reserved to Festo SE & Co. KG
1
Applicable documents
All available documents for the product
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www.festo.com/sp.
Documents Product, type Table of contents
Assembly instructions Mounting bracket, MS4/6-WR –
Tab. 1:
Applicable documents
2
Safety
2.1 Safety instructions
– Only use the product in original status without unauthorised modifications.
–
Only use the product if it is in perfect technical condition.
– Observe labelling on the product.
–
Take into consideration the ambient conditions at the location of use.
– Prior to mounting, installation and maintenance work: Switch off compressed
air supply and secure it from being switched back on.
2.2 Intended use
The filter regulator LFR is designed to regulate the compressed air in the down-
stream string to the set outlet pressure. The filter regulator LFR smooths pressure
fluctuations and removes dirt particles and condensate from the compressed air.
2.3 Training of qualified personnel
Work on the product may only be carried out by qualified personnel who can
evaluate the work and detect dangers. The qualified personnel have knowledge
and experience in pneumatics.
3
Additional information
– Contact the regional Festo contact if you have technical problems
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www.festo.com.
– Accessories
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www.festo.com/catalogue.
4
Product design
Fig. 1:
Product design
Rotary knob
Pneumatic connection P2
Filter bowl
Drain screw
Release button
Pressure gauge
Pneumatic connection P1
5 Assembly
5.1 Mounting distances
• Maintain sufficient space around the product.
–
Space required above the product: ³ 20 mm
– Space required under the product: ³ 30 mm
– Space required left and right of the product: ³ 30 mm
With sheet metal mounting:
–
Mount product vertically.
– Observe the maximum permissible wall thickness. Wall thickness: £ 2.5 mm
5.2 Types of Mounting
Mount product with one of the following types of mountings depending on the
purpose:
Type of mounting Continuing description
Wall mounting with mounting bracket
–
Assembly instructions
è
1 Applicable docu-
ments
–
è
5.4 Installation
Sheet metal mounting
–
è
5.1 Mounting distances
– Accessories
è
www.festo.com/catalogue
Tab. 2: Types of Mounting
5.3
Preparation
1. Observe the mounting position
è
Technical data.
2. Note the flow direction as shown by the numbers on the housing: from 1 to 2.
3.
To exhaust the system for maintenance:
Use shut-off valves in the compressed air supply line.
4.
Use mounting accessories from the Festo catalogue
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www.festo.com/catalogue.
5.
Note types of mounting.
5.4 Installation
1.
Place product at the installation site.
2.
Note the flow direction as shown by the numbers on the housing: from 1 to 2.
3.
Observe mounting clearances
è
5.1 Mounting distances.
4.
Place the mounting bracket on the product.
5.
Tighten mounting bracket with nut
è
1 Applicable documents .
6.
Secure mounting bracket to the mounting surface.
6 Installation, pneumatic
1.
Use fittings, seals and suitable tubing from the Festo catalogue
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www.festo.com/catalogue.
2.
Screw fittings into the pneumatic ports.
3.
Note maximum screw-in depth of the connector thread. Screwing in deeper
will reduce the flow rate. Screw-in depth: £ 6.5 mm
4.
Push suitable tubing into the fitting up to the stop.
–
Position tubing axial to the pneumatic ports.
– Do not bend the tubing more than the minimum bending radius.
7 Commissioning
7.1 Setting the output pressure
1.
Unlock rotary knob [1] (pull).
2.
Turn rotary knob [1] completely in the "z" direction.
3.
Pressurise system slowly: turn the rotary knob in the "+" direction until the
desired pressure is reached.
Maintain permissible pressure regulation range
è
Technical data.
The input pressure p1 should always be at least 0.1 MPa (1 bar, 15 psi) higher
than the set output pressure p2.
4.
Lock rotary knob [1] (press).
8 Maintenance
8.1
Draining the condensate
Draining the condensate manually
If the condensate reaches a level approx. 10 mm below the filter element:
1. Turn drain screw [4] anticlockwise as seen from below.
Ä
The condensate flows out.
2. Turn drain screw [4] clockwise as seen from below.
Draining condensate automatically
The filter drains automatically.
8.2
Changing the filter
Replace the filter cartridge if the flow rate is reduced even though the pressure
setting is unchanged.
1. Exhaust product.
2.
Pull the release button [5] on the filter bowl down.
3. Turn filter bowl [3] anticlockwise manually (as seen from below) until the stop
can be felt.
4.
Pull filter bowl [3] from the housing.
5. Unlock the latch on the support module by pressing in on the upper edge.
6.
Pull the support module upwards.
7. Unscrew the spin disc and remove the filter support.
8.
Install new filter cartridge:
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