Pressure switch FF4

The pressure-dependent switch of the line FF 4 are suitable for a wide range of applications in industry and trade. They work in ther function as regulators, switches or limiters:

  • to monitor and control the pressure conditions of liquid or gaseous media in pipelines, tanks and boilers.
  • in process control, cooling, pneumatics and hydraulics.
  • to control the pressure in cooling systems and lubrication systems for machinery.
  • their task is next to the automatic monitoring and relief, for example, the stabilization of a certain pressure, to initiate and end of different regulation and control operations, the release of functional processes and generate signals.
  • Pressure Switch FF 4 are used to separate on and off of motors on pumps and compressors in household water, pressure boosting systems, oil and compressed air supply systems.

 

FF 4-2 DAH to FF4-32 DAH
  • Pressure switch with perbunan-diaphragm for oils, water and air.
  • Pressure connector : G3/8" fermale thread
  • Additional type G= gold flashed contacts
FF 4-2 DAY to FF 4-16 DAY
  • As above but with plastic pressure connector suitable for demineralised water
  • Pressure connector : G3/8" fermale thread polyamid
FF 4-12 AAG and FF4-30 AAG
  • Stainless steel bellows
  • Media temperature 200°C up to de-ionised water
  • Pressure connector : G1/4" fermale thread stainless steel
FF 4-60 PAH to FF4-250 PAH
  • High pressure switch with plastic plunger
  • Pressure connector : G3/8" fermale thread stainless steel
Options upon request:
  • ATEX - approved version
  • VdS - approved version
  • GL - approved version
  • UL/CSA - approved version
  • Gold flashed contacts
  • For protection IP 65

image: FF 4-8 DAH

 

Pressure switch with perbunan-diaphragm (G =gold flashed contacts), Pressure connector : G3/8" Silumin
Type Part No. Upper switch pt.adjustable from … to(at bar) Lower switch pt.adjustable from … to(at bar) Smallest difference lower ... upper end of range Max.operating pressure
(at  bar)
Max. test pressure
(at  bar)
Standard setting
(at  bar)
FF 4-2 DAH
FF 4-2 DAH G
1010061
1010109
0,11 … 2 0,04 … 1,89 0,07 / 0,11 20 40 0,5 / 1,5
FF 4-4 DAH
FF 4-4 DAH G
1010062
1010012
0,22 … 4 0,07 … 3,75 0,15 / 0,25 24 40 1 / 3
FF 4-8 DAH
FF 4-8 DAH G
1010078
1010096
0,5 … 8 0,2 … 7,5 0,3 / 0,5 30 40 2 / 6
FF 4-16 DAH
FF 4-16 DAH G
1010081
1010102
1 … 16 0,4 … 15 0,6 / 1 36 48 4 / 12
FF 4-32 DAH
FF 4-32 DAH G
1010076
1010003
2 … 32 0,8 … 30 1,2 / 2 52 64 10 / 20
 
Pressure switch with perbunan-diaphragm and plastic pressure connector, Pressure connector : G3/8" polyamid
Type Part No. Upper switch pt.adjustable from … to(at bar) Lower switch pt.adjustable from … to(at bar) Smallest difference lower ... upper end of range Max.operating pressure
(at  bar)
Max. test pressure
(at  bar)
Standard setting
(at  bar)
FF 4-2 DAY 1010077 0,11 … 2 0,04 … 1,89 0,07 / 0,11 6 12 0,5 / 1,5
FF 4-4 DAY 1010063 0,22 … 4 0,07 … 3,75 0,15 / 0,25 8 12 1 / 3
FF 4-8 DAY 1010084 0,5 … 8 0,2 … 7,5 0,3 / 0,5 12 16 2 / 6
FF 4-10 DAY 1010073 0,7 … 10 0,3 … 9,2 0,4 / 0,8 12 16 4 / 5
FF 4-16 DAY 1010082 1 … 16 0,4 … 15 0,6 / 1 20 24 4 / 12
 
Pressure switch with stainless steel bellows, Pressure connector : G1/4" fermale thread stainless steel
Type Part No. Upper switch pt.adjustable from … to(at bar) Lower switch pt.adjustable from … to(at bar) Smallest difference lower ... upper end of range Max.operating pressure
(at  bar)
Max. test pressure
(at  bar)
Standard setting
(at  bar)
FF 4-12 AAG 1010074 1 … 12 0,5 … 11,2 0,5 / 0,8 12 16 6 / 7
FF 4-30 AAG 1010066 4 … 30 1 … 26,4 1,8 / 3,6 30 42 16 / 20
 
High pressure switch with plastic plunger, Pressure connector : G3/8" fermale thread stainless steel
Type Part No. Upper switch pt.adjustable from … to(at bar) Lower switch pt.adjustable from … to(at bar) Smallest difference lower ... upper end of range Max.operating pressure
(at  bar)
Max. test pressure
(at  bar)
Standard setting
(at  bar)
FF 4-60 PAH 1010064 8 … 60 4 … 52 4 / 8 100 120 20 / 40
FF 4-120 PAH 1010079 16 … 120 8 … 104 8 / 16 200 240 20 / 80
FF 4-250 PAH 1010072 30 … 250 14 … 226 12 / 24 400 500 100 / 200
 
Pressure switch with manual reset, Pressure connector : G3/8" Silumin - DDH = reset min., DRH = reset max.
Type Part No. Upper switch pt.adjustable from … to(at bar) Lower switch pt.adjustable from … to(at bar) Smallest difference (at bar) Max.operating pressure
(at  bar)
Max. test pressure
(at  bar)
Standard setting
(at  bar)
FF 4-2 DRH 1010106 0,11 … 2   0,2 20 40 0,5 / 1,5

FF 4-2 DDH

1010107
  0,04 … 1,89
0,1
20 40 0,5 / 1,5
FF 4-4 DRH 1010016 0,22 … 4   0,5 24 40 1 / 3

FF 4-4 DDH

1010100
  0,07 … 3,75
0,2
24 40 1 / 3
FF 4-8 DRH 1010069 0,5 … 8   1,0 30 40 2 / 6

FF 4-8 DDH

1010094
  0,2 … 7,5
0,4
30 40 2 / 6
FF 4-16 DRH 1010110 1 … 16   2,0 36 48 4 / 12

FF 4-16 DDH

1010101
  0,4 … 15
0,8
36 48 4 / 12
FF 4-32 DRH 1010057 2 … 32   4,0 52 64 10 / 20

FF 4-32 DDH

1010087
  0,8 … 30
1,6
52 64 10 / 20
 
Pressure switch with UL / CSA approval IP65, Pressure connector : 1/4"18 NPTF" Silumin
Type Part No. Upper switch pt.adjustable from … to(at psi) Lower switch pt.adjustable from … to(at psi) Smallest difference lower ... upper end of range (at psi) Max.operating pressure
(at  psi)
Max. test pressure
(at  psi)
Standard setting
(at  psi)
FF444-V2 DAF 1010309 3 ... 58 1 ... 54 2 / 4 348 580 14 / 44
FF444-V4 DAF 1010311 15 … 232 6 … 217 9 / 14 522 696 58 / 174
FF444-V6 PAF 1010299 116 … 870 58 … 754 58 / 116 1450 1740 290 / 580
 
Pressure switch with perbunan-diaphragm for fire fighting equipment VdS-approved, Pressure connector : G1/2" Silumin
Type Part No. Upper switch pt.adjustable from … to(at bar) Lower switch pt.adjustable from … to(at bar) Smallest difference lower ... upper end of range Max.operating pressure
(at  bar)
Max. test pressure
(at  bar)
Standard setting
(at  bar)
FF 4-2 VdS DAI 1020068 0,35 … 1 0,4 … 0,9 0,1 fest 20 40 0,6/0,7
FF 4-2 VdS DRI 1020070 0,5 … 1   0,2 fest 20 40 … /0,7
FF 4-10 VdS DAI 1020080 0,7 … 10 0 … 8,5 0,5 ... 1.5 32 40 4/5
FF 4-16 VdS DAI 1020067 1 … 16 0,5 … 15 0,8 ... 1.5 36 48 11/12
 
Ex-type –mining industry-protection class IM2 EEx iaI - Pressure connector : G3/8" zinc diecasting
Type Part No. Upper switch pt.adjustable from … to(at bar) Lower switch pt.adjustable from … to(at bar) Smallest difference lower ... upper end of range Max.operating pressure
(at  bar)
Max. test pressure
(at  bar)
Standard setting
(at  bar)
FF 4-2 AB DAH 1030133 0,11 … 2 0,04 … 1,89 0,07 / 0,11 20 40 0,5 / 1,5
FF 4-4 AB DAH 1030134 0,22 … 4 0,07 … 3,75 0,15 / 0,25 24 40 1 / 3
FF 4-8 AB DAH 1030135 0,5 … 8 0,2 … 7,5 0,3 / 0,5 30 40 2 / 6
FF 4-16 AB DAH 1030136 1 … 16 0,4 … 15 0,6 / 1 36 48 4 / 12
FF 4-32 AB DAH 1030137 2 … 32 0,8 … 30 1,1 / 2 52 64 10 / 20
FF 4-60 AB PAH 1030138 8 … 60 4 … 52 4 / 8 100 120 20 / 40
FF 4-120 AB PAH 1030139 16 … 120 8 … 104 8 / 16 200 240 20 / 80
FF 4-250 AB PAH 1030140 30 … 250 14 … 226 12 / 24 400 500 100 / 200
 
Ex-type –chemie-protection class II 2G EEx ia IIC T6 - Pressure connector : G3/8 silumin
Type Part No. Upper switch pt.adjustable from … to(at bar) Lower switch pt.adjustable from … to(at bar) Smallest difference lower ... upper end of range Max.operating pressure
(at  bar)
Max. test pressure
(at  bar)
Standard setting
(at  bar)
FF 4-2 AC DAH 1030141 0,11 … 2 0,04 … 1,89 0,07 / 0,11 20 40 0,5 / 1,5
FF 4-4 AC DAH 1030142 0,22 … 4 0,07 … 3,75 0,15 / 0,25 24 40 1 / 3
FF 4-8 AC DAH 1030144 0,5 … 8 0,2 … 7,5 0,3 / 0,5 30 40 2 / 6
FF 4-16 AC DAH 1030145 1 … 16 0,4 … 15 0,6 / 1 36 48 4 / 12
FF 4-32 AC DAH 1030146 2 … 32 0,8 … 30 1,1 / 2 52 64 10 / 20
FF 4-60 AC PAH 1030147 8 … 60 4 … 52 4 / 8 100 120 20 / 40
FF 4-120 AC PAH 1030149 16 … 120 8 … 104 8 / 16 200 240 20 / 80
FF 4-250 AC PAH 1030150 30 … 250 14 … 226 12 / 24 400 500 100 / 200
               
Ex-type –chemie-protection class II 2G EEx ia IIC T6 - Pressure connector : G1/4"stainless steel
Type Part No. Upper switch pt.adjustable from … to(at bar) Lower switch pt.adjustable from … to(at bar) Smallest difference lower ... upper end of range Max.operating pressure
(at  bar)
Max. test pressure
(at  bar)
Standard setting
(at  bar)
FF 4-12 AC AAG 1030131 1 … 12 0,5 … 11,2 0,5 / 0,8 12 16 6 / 7
FF 4-30 AC AAG 1030132 4 … 30 1 … 26,4 1,8 / 3,6 30 42 16 / 20
               
Pressure switch with perbunan-diaphragm, Pressure connector : G3/8" Silumin --GL-approved--
Type Part No. Upper switch pt.adjustable from … to(at bar) Lower switch pt.adjustable from … to(at bar) Smallest difference lower ... upper end of range Max.operating pressure
(at  bar)
Max. test pressure
(at  bar)
Standard setting
(at  bar)
FF 4-2 GL DAH 1010122 0,11 … 2 0,04 … 1,89 0,07 / 0,11 20 40 0,5 / 1,5
FF 4-4 GL DAH 1010020 0,22 … 4 0,07 … 3,75 0,15 / 0,25 24 40 1 / 3
FF 4-8 GL DAH 1010031 0,5 … 8 0,2 … 7,5 0,3 / 0,5 30 40 2 / 6
FF 4-16 GL DAH 1010117 1 … 16 0,4 … 15 0,6 / 1 36 48 4 / 12
FF 4-32 GL DAH 1010026 2 … 32 0,8 … 30 1,2 / 2 52 64 10 / 20
               
High pressure switch with plastic plunger, Pressure connector : G3/8" stainless steel --GL-approved--
FF 4-60 GL PAH 1010088 8 … 60 4 … 52 4 / 8 100 120 20 / 40
FF 4-120 GL PAH   16 … 120 8 … 104 8 / 16 200 240 20 / 80
FF 4-250 GL PAH   30 … 250 14 … 226 12 / 24 400 500 100 / 200