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Control pressure switch series FF 4 Approval acc. to ATEX
����� Description Pressure switches up to 2 - 32 bar with perbunan diaphragm. Pressure switches up to 60 - 250 bar with plastic plunger and throttle. Throttle must be removed when using viscose media.
103 mm
103 mm 151 mm
151 mm
75,5 mm
75,5 mm
a
14 mm
14 mm
57 mm 40,5 mm 40,5 mm
5,5 mm 40 mm
50 mm 84,5 mm
5,5 mm
50 mm 84,5 mm
77,5 mm
FF 4-2, FF 4-4, FF 4-8, FF 4-16, FF 4-32
40 mm 77,5 mm
FF 4-12, FF 4-30, FF 4-60, FF 4-120, FF 4-250
Types Protection class: IM2 EEx ia I, Pressure connector: H (G 3/8“ Female thread) Order reference FF FF FF FF FF FF FF FF
4-2 AB DAH 4-4 AB DAH 4-8 AB DAH 4-16 AB DAH 4-32 AB DAH 4-60 AB PAH 4-120 AB PAH 4-250 AB PAH
Upper switch pt. adjustable (bar) 0,11 0,22 0,5 1 2 8 16 30
... ... ... ... ... ... ... ...
2 4 8 16 32 60 120 250
Lower switch pt. adjustable (bar) 0,04 0,07 0,2 0,4 0,8 4 8 14
... ... ... ... ... ... ... ...
1,89 3,75 7,5 15 30 52 104 226
Smallest diff.* (bar) 0,07 0,15 0,3 0,6 1,1 4 8 12
0,11 0,25 0,5 1 2 8 16 24
Max. Max. operating test pressure (bar) pressure (bar) 20 24 30 36 52 100 200 400
40 40 40 48 64 120 240 500
Standard setting (bar)
Part No.
0,5 1 2 4 10 20 20 100
1030133 1030134 1030135 1030136 1030137 1030138 1030139 1030140
/ 1,5 / 3 / 6 / 12 / 20 / 40 / 80 / 200
* at lower ... higher end of range
Types Protection class: II 2G EEx ia IIC T6, Pressure connector: H (G 3/8“ Female thread) Order reference FF FF FF FF FF FF FF FF
4-2 AC DAH 4-4 AC DAH 4-8 AC DAH 4-16 AC DAH 4-32 AC DAH 4-60 AC PAH 4-120 AC PAH 4-250 AC PAH
Upper switch pt. adjustable (bar) 0,11 0,22 0,5 1 2 8 16 30
... ... ... ... ... ... ... ...
2 4 8 16 32 60 120 250
Lower switch pt. adjustable (bar) 0,04 0,07 0,2 0,4 0,8 4 8 14
... ... ... ... ... ... ... ...
1,89 3,75 7,5 15 30 52 104 226
Smallest diff.* (bar) 0,07 0,15 0,3 0,6 1,1 4 8 12
0,11 0,25 0,5 1 2 8 16 24
Max. Max. operating test pressure (bar) pressure (bar) 20 24 30 36 52 100 200 400
40 40 40 48 64 120 240 500
Standard setting (bar)
Part No.
0,5 1 2 4 10 20 20 100
1030141 1030142 1030144 1030145 1030146 1030147 1030149 1030150
/ 1,5 / 3 / 6 / 12 / 20 / 40 / 80 / 200
* at lower ... higher end of range
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Control pressure switch series FF 4
����� Types Protection class: II 2G EEx ia IIC T6, Pressure connector with stainless steel corrugated bellows, Pressure connector: G (G 1/4“ Female thread) Order reference
Upper switch pt. adjustable (bar)
FF4-12 AC AAG FF4-30 AC AAG
Lower switch pt. adjustable (bar)
1 ... 12 4 ... 30
0,5 ... 11,2 1 ... 26,4
Smallest diff.* (bar) 0,5 1,8
0,8 3,6
Max. Max. operating test pressure (bar) pressure (bar) 12 30
16 42
Standard setting (bar)
Part No.
6/ 16 /
1030131 1030132
7 20
* at lower ... higher end of range
Technical Data Resistance to vibration 10 up to 1000 Hz
4g
Ambient temperature range
Protection acc. to DIN 40 050/IEC 529 with rubber grommet
IP 54
Perm. medium temperature
Protection acc. to DIN 40 050/IEC 529 with cable glands PG 13.5/M20
IP 65
Repeatability
-30...+60° C (...DAH, PAH) (...AAG)
+70° C +200° C < 2% FS
Media compatibility guide Medium name Acetone Acetylene Air Benzene Butane Butyl acetate Butyl alcohol Carbon dioxide Carbonic acid Chlorine Crude oil Diesel oil Ethyl acetate Fuels
Glycerine Glycol Heating fuel oil Hydrogen Inert gases Methanol Methyl chloride Natural gas Nitrogen Oils Oils Oxygen Ozone Perchlorethylene Petrol Phenolic acid Propane Sulphar dioxide Toluene (Metyl benzene) Trichlorethene Water Water Water Xylene
Chemical Formula CH3COCH3 HC = CH Sulphur-free C4H10 CH3COOC4H9 CH3-CH2-CH2-CH2-OH CO2 H2CO3 Cl2 See fuels CH3OOOC2H5 Diesel oil, Leaded petrol Benzene CH2OH-CHOH-CH2OH CH2OH-CH2OH See also oils H2 CH3OH CH3Cl N2 Mineral Vagetable O2 CCI2=CCL2 All types C6H5(OH) C3H8 SO2 C6H5CH3 CHCI=CCI2 Steam/vapor Destilled, de-aerated Sea water C6H4(CH3)2
Stainless steel X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
Perbunan
Viton
Plastic
X X
X X X X
X X
X
X X X X X X X X X X
X
X X X X X
X X
X X X X X X
X X
X X
X X X X
X X X X
X X X X X X X X
X X X
X
X d X X X X
X
X X X
X X
X X = recommended, d = dry
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Control pressure switch series FF 4
����� Accessories Order reference
Description
Throttle FF4-2...32 Throttle FF4-60...250
Throttles Throttle for series FF4-2 up to 32 Throttle for series FF4-60 up to 250
H 124-114
Glands Steel gauge fitting, G 3/4” - G 1/2”
Weight (g)
Part No.
3 3
1090401002 1090401003
180
1090501004
Dimensions
M4
4 mm 6 mm
5,5 mm
Throttle screw for FF 4-2 up to 32
Throttle screw for FF 4-60 up to 250
approx. weight: 0,003 kg
approx. weight: 0,003 kg Order No.: 1011003
Order No.: 1011002
G 3/8”
G 1/2”
Gauge fitting Steel, G 3/8” - G 1/2”, Type: H 124-114 approx. weight: 0.18 kg Order No.: 1071004
Circuit diagram
Change-over contact
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Control pressure switch series FF 4
����� Pressure diagrams Above charts show the smallest adjustable differential. Example per figure FF 4-4: If upper setting is at 3.25 bar, lower setting can be adjusted between 0.07 and 3.0 bar (see arrows in the drawing). FF 4-4
1,6
0,8 0,4 0 0,4
1,6
1,2
0,8
Lower switching point
2,5 2 1,5 1 0,5 0
2
4
3
2
1
0
bar
bar
Lower switching point
FF 4-12
12
bar
8
bar
3,5 3
1,2
0
FF 4-8
4
bar
Upper switching point
bar
2
Upper switching point
FF 4-2
7
10
5
Upper switching point
Upper switching point
6 4 3 2 1 0 0
FF 4-16
6
8
Lower switching point
bar
2
4
bar
bar
Upper switching point
Upper switching point
8 4 0 4
8
12
Lower switching point
FF 4-32
0 24
Lower switching point
32
bar
6
8
10
12 bar
25 20 15 10 5 0 5
10
15
20
25
30
bar
60
Upper switching point
8
4
Lower switching point
bar
bar Upper switching point
16
2
30
0
24
16
0
bar
FF 4-60
8
2
16
32
0
4
Lower switching point
12
0
6
0
FF 4-30
16
8
50 40 30 20 10 0 0
10
20
30
40
Lower switching point
50
60
bar
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Control pressure switch series FF 4
����� Pressure diagrams FF 4-120
FF 4-250 bar
250
100 80
Upper switching point
Upper switching point
bar
120
60 40 20 0 0
20
40
60
80
Lower switching point
100
120 bar
200 150 100 50 0 0
50
100
150
Lower switching point
200
250 bar
