Datasheet

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ISO9001 C ERTI F I E D
LFS Series
Paddle Flow Switches
Cynergy3 Components Ltd.
NB: Flow rates in litres per minute
7 Cobham Road
Ferndown Industrial Estate
Wimborne, Dorset BH21 7PE
Telephone [phone]
Email:[e-mail]
The LFS range of flow switches are paddle
devices that are mounted vertically
through a socket or upstand process
connection.
Electrical connections are made within the
housing, which has a screw on sealed lid
and cable gland.
A choice of paddle sizes is supplied with
each switch and selection can be made
with reference to the chart opposite.
Mechanical Dimensions
IP65 Aluminium alloy housing or DIN 43650 connection
Maximum operating pressure 20 bar
Stainless steel SS304 paddle
3/4”PF or 1”PT mounting plug thread
Use for flow detection in pipes from 1” bore to 3”
bore
Technical Specification
Housing material Aluminium Alloy Paddle material 304grade SS
Temperature range See chart below Maximum pressure 20 bar
Set point tolerance ±25 % Pressure drop 0.2 bar
Repeatability ±5% Connection in housing or by DIN 43650
Electrical Specification
Contact Form SPDT
Switching Power Max VA 40
Switching Voltage AC/DC Max V 230
Switching Current Max A 1.0
All ratings are for resistive load only.
Standard Parts Mounting thread Operating Temperature Connection
LFS-01 1”NPT -30 to +75°C Terminate in housing
LFS-01H 1"NPT -30 to +150°C Terminate in housing
LFS-02 3/4”BSP -30 to +75°C Terminate in housing
LFS-02H 3/4"BSP -30 to +150°C Terminate in housing
LFS-03 1”NPT -30 to +75°C DIN 43650
LFS-03H 1"NPT -30 to +120°C DIN 43650
LFS-04 3/4”BSP -30 to +75°C DIN 43650
LFS-04H 3/4"BSP -30 to +120°C DIN 43650
1"NPT
1"NPT
22
13
13
22
22
92
92
25
25
80
90
1/2"BSP
38 AF
38 AF
38 AF
38 AF
3/4"BSP
3/4"BSP
22
34
34
37
37
8
8
13
13
22
22
92
92
25
25
80
90
1/2"BSP
DIN 43650
DIN 43650
Model No. LFS-02/H
Model No. LFS-03/H
Model No. LFS-04/H
Model No. LFS-01/H
Switch Op Rel Op Rel Op Rel Op Rel Op Rel Op Rel
1" 19 15.2 32.2 24.7 45.5 34.1 64.4 56.8
1.25" 24.7 17.1 34.1 26.5 56.8 45.5 87.1 75.8
1.50" 53 37.9 87.1 60.6 121.2 94.7
2" 68.2 45.5 90.9 64.4 125 102.3
2.5" 75.8 49.3 102.3 121.2
3" 83.3 60.6
Paddle length
2.5" 3"Pipe Dia 1" 1.25" 1.50" 2"