PRESSURE SWITCH - JOHNSON PENN

PRESSURE SWITCH - JOHNSON PENN

Category: HOSE REEL SYSTEM

Specifications
SKU
PRESSURE SWITCH (PENN)
Details

In a fire-fighting system (sprinkler, hydrant, fire pump circuit), it use as a pressure monitoring/control switch to ensure proper pump operation and pipeline integrity.


 
Fire Pump Start/Stop Control The pressure switch detects a drop in system pressure when a sprinkler head opens or a fire hydrant valve is used        
    It will sends an electrical signal to the fire pump controller to start the pump automatically  
      When the pressure returns to the preset level, it may stop the pump (for automatic systems)            
Pressure Supervision/Alarm Function The switch provides a low or high pressure alarm signal to the fire alarm control panel              
      This ensures the system is always in a ready-to-operate condition, and alerts operators to any abnormal conditions (like pump failure, leakage, or blocked line)
System Safety Protection ● Prevents overpressure damage to the system by cutting off the pump circuit if the pressure exceeds the safe limit.        
      ● Ensures safe operation of pumps, valves, and pipelines under varying load conditions              



 
  • Range : -0.2 bar to + 10 bar
  • Differential : 0.7 bar to 4 bar
  • Max Working Pressure : 17 bar (1.7 MPa)
  • Reset Type : Auto Reset
  • Ambient Temperature : -20°C to 65°C

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