Explosion proof waterflow detector

  • Certificate: UL Listed / FM Approved
  • Standard: UL 346, comply to NFPA 13, 13D, 13R, 72
  • Material: Aluminum alloy cover and saddle
  • Temperature: 0°C to 49°C
  • Pressure rating: 300 / 450 psi
  • Enclosure: IP66 for explosion proof type
  • Surface: Aluminum

Explosion proof waterflow detector is a vane type waterflow switch for use on wet sprinkler system located in hazardous locations. When water movement deflects the vane inserted in waterway, and the motion is transmitted to an alarm-actuating switch after a predetermined time delay.

Available size

Compatible steel pipe Connection Working pressure (psi) Ref. No.
Pipe 2″ / DN50 U-bolt 300 / 450 V8901
Pipe 2-1/2″ / DN65 U-bolt 300 / 450 V8902
Pipe 3″ / DN80 U-bolt 300 / 450 V8903
Pipe 4″ / DN100 U-bolt 300 / 450 V8904
Pipe 5″ / DN125 U-bolt 300 / 450 V8905
Pipe 6″ / DN150 U-bolt 300 / 450 V8906
Pipe 8″ / DN200 U-bolt 300 / 450 V8907

Note: For hazardous atmosphere classification, it includes different groups of Class I, II, III. Please contact TPMC for details.

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