NOTE: the piston type executions are available only with threaded connection 1/4"BSP and 1/4"BSTP

F4 adjustable pressure switches allow a micro-switch actuation once a preset pressure value is reached.
For the instrument with rubber cup protection the pressure is adjusted by rotating the screw located at the center of the instrument; while for the instrument with the Din connection it is adjusted with a 2 mm Allen wrench as an alternative to the central M3 adjusting screw.
For both versions, rotate the screw clockwise to increase and counter-clockwise to decrease the value. Mechanical stops protect both the spring and the micro-switch from over pressurization.

Technical Features:
Body in plated carbon steel, with connections to the system of 1/4"BSP, 1/8"BSPT or M10x1 thread male connection – please specify when ordering.
Installation position: it can be mounted in any position.
Working temperature: from -25°C to+85°C
Switching frequency: 60 cycles/min.
Switching accuracy: ± 4 % of set pressure
Fixed hysteresis value: about 15 % of set value
Weight: 50 gr.

Electric Features:
Series F4--/P2
Electrical connection: screw connection
Electrical protection according to
DIN 40050: IP 54 with rubber cup protection
Maximum contact load:
Alternating current up to 125Volts- 2 Amp
Direct current up to 30 Volts - 1 Amp

Series F4--/M2
Electrical connection according to DIN 43650
Electrical protection according to
DIN 40050: IP 65
Maximum contact load:
Alternating current up to 125 Volts- 2 Amp
Direct current up to 30 Volts - 1 Amp

Also Available
-FW4 vacuum switch with regulation range from 150 to 750 mlBar

-F4X with connection fluid port made in AISI 316 stainless steel
–Viton seals
–PTFE seals
–body in brass