Pressure Switch FF 142

Pressure switch (IP 55) for use in all areas of industry and trade, to monitor and control the pressure of liquid and gaseous media.
Applications: Pressure monitoring in pipes container refrigeration and heating equipment boiler pressure control in cooling and heating systems and oil pumps and compressors and compressed air supply systems

FF 142-.. DAH
  • Pressure switch with perbunan-diaphragm and 2 change-over contacts
  • Pressure connector: G3/8" fermale polyamid
  • Suitable for oil, water, air etc.
FF 142-.. AAC
  • Pressure switch with stainless steel-bellows and 2 change-over contacts
  • Pressure connector: G1/4"male, stainless steel
  • Suitable for ammonia, oil, water, air etc.
FF 142-.. BAA
  • Pressure switch with bronze-bellows und 2 change-over contacts
  • Pressure connector: 7/16-20 UNF male
  • Suitable for freon, SO2, CH3, oil, water, air etc.
Available versions:
  • With 1 change-over contacts available especially when small differences are to be achieved.

image: FF 142-8 DAH

 

pressure switch with perbunan-diaphragm and 2 change-over contacts,pressure connector: G3/8" fermale polyamid, ( ) 1 change-over contact
Type Upper switch pt.adjustable from … to(at bar) Difference adjustable from … to(at bar) Lower switch pt.adjustable from … to(at bar) Max pressure
(at  bar)		 Standard setting
(at  bar)
FF 142-6 DAH 0,2 ... 1,5 0,12 (0,1) ... 0,5 0,1 5 1/0,8
FF 142-8 DAH 1 ... 8 0,4 (0,25) ...2,4 0,1 10,5 5/4
FF 142-9 DAH 2 ... 21 0,8 (0,6) ... 6 0,1 25 12/10
 
pressure switch with stainless steel-bellows and 2 change-over contacts, pressure connector: G1/4"male, stainless steel, ( ) 1 change-over contact
Type Upper switch pt.adjustable from … to(at bar) Difference adjustable from … to(at bar) Lower switch pt.adjustable from … to(at bar) Max pressure
(at  bar)		 Standard setting
(at  bar)
FF 142-3 AAC -0,4 ... 8 0,6 (0,3) ... 3 -1 25 4/2
FF 142-5 AAC 2 ... 22 2 (1,2) ... 9 0,1 30 16/12
FF 142-10 AAG 5 ... 40 2 (1,2) ... 10

0,1

 50 25/21
 
pressure switch with bronze-bellows und 2 change-over contacts, pressure connector: 7/16-20 UNF male, ( ) 1 change-over contact
Type Upper switch pt.adjustable from … to(at bar) Difference adjustable from … to(at bar) Lower switch pt.adjustable from … to(at bar) Max pressure
(at  bar)		 Standard setting
(at  bar)
FF 142-1 BAA 0,2 ... 1,5 0,15 (0,1) ... 0,6 0,1 6 1/0,5
FF 142-2 BAA 0,4 ... 3 0,2 (0,12) ... 1 0,1 6 2/1
FF 142-3 BAA -0,5 ... 8 0,5 (0,3) ... 3 -1 25 4/2
FF 142-4 BAA -0,6 ... 3,5 0,4 (0,25) ... 1,6 -1 25 2/1
FF 142-5 BAA 2 ... 22 2 (1,2) ... 8 0,1 30 16/12