The copper alloy material is adopted for sounding body and control valve. There is some excellence on it, e.g. Light weight, high stress, high volume, low power consume etc. every performance achieved and exceeded the request standard rules, The primary performance of the class of 1/3times band voice pressure and the range of audio are according with the standard of “International convention for preventing collisions at sea, 1972” and the clause of laws and rules of “Technical regulations for statutory surveys of ships engaged on international voyages” “Technical regulations for statutory surveys of sea-going ships on domestic voyages” “Technical regulations for statutory surveys of inland waterway ships” which are certified by china ship survey bureau.
WD-1 Air Horn Data:
1. Applicable length:20-75m
2. Diameter: DN25
3. Frequency range: 250-700Hz
4. 1/3 time band pressure level:≥130dB
5. Audible range: 1.0 miles
6. Control method: manual and electromotion
7. Air source pressure: 1.0Mpa
8. Air consumption: ≤8.3×10-3m3/s
9. Electromagnetic valve working voltage: DC220V
10. Electric heater working voltage： AC220V
11. Electric heater power: ≤250W
Features：
1. Copper alloy
2. Supply electric-control type
3. Lightweight,high stress&volume,low power
4. One year warranty
5. Certificates：LR,GL,BV,ABS,NK,DNV,ZY
6. Shipyard can use AC220，DC24V power supply.
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