ATLANTIS Pressure Switch AT520-7DDS

RM 0.00


Double Setting Differential Pressure Switch AT520-7DDS


Atlantis  pressure switch AT520-7DDS double setting differential pressure switch adopts bellow as sensor, which can be used for neutral liquid and gas. ATLANTIS Pressure Switch AT520-7DDS mainly used in nuclear power, chemical industry, shipping, metallurgy and other industries.



  • OEM service
  • Adopts DPDT micro switch
  • Adjustable set point range 0.02 to 1.6MPa
  • Suitable for using in neutral liquid and gas
  • Adopts bellow as measuring elements
  • Protection level IP65


Main Specifications

  • Pressure connection: Material: Brass, Thread spec.: G1/4”(F)
    Other thread specification is available made-to-order
  • Adjustable set point range: 0.02~1.6MPa
    For detail please refer to adjustable set point range (Fixed Dead Band) table
  • Dead band: Fixed dead band
    For detail please refer to adjustable set point range (Fixed Dead Band) table
  • Applicable fluid: Neutral gas and liquid that compatible with pressure connection
  • Operating pressure: 0.05~2.5MPa (Based on adjustable set point range)
  • Ambient temperature: -30°C to 50°C
  • Media temperature: 0~100℃
  • Media viscosity: < 1 x 10-3m2/s
  • Vibration resistance: Max. 20m/s2
  • Protection level: IP65


Other Specifications

  • Installation: Bottom mount (15° of tilt is acceptable)
  • Case material: Die casting aluminum
  • Measuring elements: Bellow, Material: SS316L (Standard), other materials (Optional)
  • Switch type: DPDT micro switch
  • Switching frequency: 10 times/min
  • Max. operating pressure: 2 / 3MPa (Based on adjustable set point range)
  • Repeatability: ≤1%
  • Synchronization error: ≤0.5%
    (Synchronization error on lowswitching pressure difference value *3)
  • Contact rating: AC220V, 15A (Resistive 600VA)
  • Service life: 2,000,000 cycles
  • Weight: About 1.6kg
  • Other requests (Option): Third party notarized documents, Inspection report, Tag