N 143 AT/ST.9E Ex

Flow rate (at atm. pressure) l/min
27
Vacuum mbar absolute
100
Pressure bar g
4
KNF N 143 ST.9E Ex - ATEX Pump
Materials
N 143 AT.9E Ex

Aluminium pump head, PTFE-coated diaphragm, and stainless steel valves

N 143 ST.9E Ex

Stainless steel pump head, PTFE-coated diaphragm, and stainless steel valves—suitable for handling aggressive and corrosive gases and vapors

Motor Data
IP 55 – Ex II 2G Ex e IIC T3 Gb
  • Voltage: 3~230–400 V
  • Frequencies: 50 Hz
  • Motor rating: 370 W
  • Rated motor current: 1.84/1.06
IP 55 – Ex II 2G Ex de IIC T4
  • Voltage: 3~230–400 V
  • Frequencies: 50 Hz
  • Motor rating: 250 W
  • Rated motor current: 1.19/0.69
IP 55 – Ex II 2G Ex d IIC T4
  • Voltage: 3~230–400 V
  • Frequencies: 50 Hz
  • Motor rating: 250 W
  • Rated motor current: 1.19/0.69
Explosion Protected
N 143 AT.9E
  • Pump parts: Ex II 2G IIB-T4 X
  • Three-phase AC motor: Ex II 2G Ex e IIC T3 Gb / Ex II 2G Ex de IIC T4 / Ex II 2G Ex d IIC T4
N 143 ST.9E
  • Pump parts: Ex II 2G IIB-T4 X
  • Three-phase AC motor: Ex II 2G Ex e IIC T3 Gb / Ex II 2G Ex de IIC T4 / Ex II 2G Ex d IIC T4
    • Comply with ATEX directive
    • Corrosion-resistant model available (N 143 ST.9E)
    • Very quiet and little vibration
    • Can operate in any installed position
    • High level of gas tightness, approx. 6×10-3 mbar × l/s (not tested in serial production)
    • Cool running motor, even in continuous operation
    • Pure transfer, evacuation and compression of air, gases and vapors
  • Flow rate l/min at atm. pressure27
    Ultimate vacuum mbar absolute100
    Operating pressure bar g4

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