Festo LFR EX4 Series, Инструкции и эксплуатация

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Translation of the original instructions
1 Identification EX
Identification mark
II 2G Ex h IIC T6 Gb X
II 2D Ex h IIIC T85°C Db X
Tab. 1
2 Further applicable documents
NOTICE!
Technical data for the product can have different values in other documents. For
operation in an explosive atmosphere, the technical data in this document always
have priority.
All available documents for the product
è
www.festo.com/pk.
3 Safety
3.1 Safety instructions
– The device can be used under the stated operating conditions in zone 1,
explosive gas atmospheres, and in zone 21, explosive dust atmospheres.
– The product may only be used in its original status without unauthorised
modifications.
– Only use the product if it is in perfect technical condition.
– All work must be carried out outside of potentially explosive areas.
– Observe the specifications on the product labelling.
– Earth the device via the earthing screw.
– Only use media in accordance with the specifications è 11 Technical data.
3.2 Intended use
The filter regulating valve LFR regulates the compressed air in the subsequent
string to the set output pressure. The LFR thereby smoothes out pressure fluctu­
ations.
3.3 Identification X: special conditions
– Danger of electrostatic discharge.
– Ambient temperature T18:
-
20 °C
£
T
a
£ +
80 °C
– Ambient temperature T3:
-
40 °C
£
T
a
£ +
80 °C
4 Further information
– Accessories è www.festo.com/catalogue.
– Spare parts
è
www.festo.com/spareparts.
5 Service
Contact your regional Festo contact person if you have technical questions
è www.festo.com.
6 Product overview
6.1 Function
The filter regulating valve LFR removes dirt particles and condensate. The output
pressure can be adjusted within the pressure range.
6.2 Product variants
Ambient temperature T18: -20 °C … +80 °C
Connection Type Part number
LFR­1/4­D­5M­O­MIDI­T18­EX4 4772764
LFR­1/4­D­O­MIDI­T18­EX4 4772765
LFR­1/4­D­16­5M­O­MIDI­T18­EX4 4772766
LFR­1/4­D­16­O­MIDI­T18­EX4 4772767
LFR­N1/4­D­5M­O­MIDI­T18­EX4 4772772
LFR­N1/4­D­O­MIDI­T18­EX4 4772773
LFR­N1/4­D­16­5M­O­MIDI­T18­EX4 4772774
¼ "
LFR­N1/4­D­16­O­MIDI­T18­EX4 4772775
LFR­1/2­D­5M­O­MIDI­T18­EX4 4772768
LFR­1/2­D­O­MIDI­T18­EX4 4772769
LFR­1/2­D­16­5M­O­MIDI­T18­EX4 4772770
LFR­1/2­D­16­O­MIDI­T18­EX4 4772771
LFR­N1/2­D­5M­O­MIDI­T18­EX4 4772776
LFR­N1/2­D­O­MIDI­T18­EX4 4772777
LFR­N1/2­D­16­5M­O­MIDI­T18­EX4 4772778
½ "
LFR­N1/2­D­16­O­MIDI­T18­EX4 4772779
Tab. 2
Ambient temperature T3: -40 °C … +80 °C
Connection Type Part number
LFR­1/4­D­5M­O­MIDI­T3­EX4 5271792
LFR­1/4­D­O­MIDI­T3­EX4 5271793
LFR­1/4­D­16­5M­O­MIDI­T3­EX4 5271794
LFR­1/4­D­16­O­MIDI­T3­EX4 5271795
LFR­N1/4­D­5M­O­MIDI­T3­EX4 5271800
LFR­N1/4­D­O­MIDI­T3­EX4 5271801
LFR­N1/4­D­16­5M­O­MIDI­T3­EX4 5271802
¼ "
LFR­N1/4­D­16­O­MIDI­T3­EX4 5271803
LFR­1/2­D­5M­O­MIDI­T3­EX4 5271796
LFR­1/2­D­O­MIDI­T3­EX4 5271797
LFR­1/2­D­16­5M­O­MIDI­T3­EX4 5271798
LFR­1/2­D­16­O­MIDI­T3­EX4 5271799
LFR­N1/2­D­5M­O­MIDI­T3­EX4 5271804
LFR­N1/2­D­O­MIDI­T3­EX4 5271805
LFR­N1/2­D­16­5M­O­MIDI­T3­EX4 5271806
½ "
LFR­N1/2­D­16­O­MIDI­T3­EX4 5271807
Tab. 3
7 Assembly and installation
1 Indication of flow direction 2 Plug screw
Fig. 1
7.1 Filter regulator
1. Observe the flow direction 1 after 2.
2. Place the device at least 80 mm below the filter bowl.
3. Position the device vertically (
_ 5°).
When assembling filter combinations, observe the sequence along the flow direc­
tion.
7.2 Pressure gauge
1. Remove the plug screw 2 .
2. Turn pressure gauge with seal to the stop.
8107996
LFR-...-EX4-...
Filter regulator
8107996
2019­02b
[8107185]
Instructions | Operating
Festo SE
& Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
+49 711 347­0
www.festo.com