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AIR-LOCK
  AIR-LOCK valve    
   

The Air-Lock pressure static device is composed of a Pneumatic pressure switch combined with 2 x 3 way valves ND 1/4 ̄ in a single body. is mounted on pneumatic actuators when they need to be isolated from control devices (for example positioners or electro-pneumatic distributors) in the event air pressure falls below the pre-determined operating safety point.
Air-Lock device consists mainly of a pneumatic pressure switch with an adjustable set point. This device synchronously drives the 2 x 3 way valves. The switching device operates immediately, even in the case of a gradual air-pressure decrease to the set value. The device will automatically reset after a failure when the line pressure is 1 bar greater than set pressure, to avoid instability around the device set point.

  • Accurate pressure setting
  • Insensitive to vibrations
  • Reset hysteresis with established safety
  • Set screw lockable with nut
  • Synchronous drive for set pressure group + 2 x 3 way valve in one body
  • Suitable for:
  • Standard, offshore, sandstorm and copper-free ambient conditions
  • Single and double acting actuator
  • Low and high ambient temperature
   
 
     
   
 
       

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