WD-1A Fog Horn:

China WD-1A Fog Horn:

WD-1A Fog Horn

1) Chapter 3 of Part 4 of the"Steel Ship Classification Rules" of the China Classification Society:
2) Annex III of Convention on The International Regulations for Preventing Collision at Sea(COLREG) 1972 and Amendments.
3) Maritime Administration of the People's Republic of China: "Regulations on Legal lnspection of Ships and Marine Facilities-Domestic Navigation Sea Vessels Legal Inspection Regulations' Chapter 13 of Part 4.
4) Maritime Administration of the People's Republic of China: "Regulations on Legal lnspection of Ships and Marine Facilities-Domestic Navigation Sea Vessels Legal Inspection Regulations"Chapter 8 of Part 4.

Electric heating supply: AC220V, 50/60HZ

Solenoid valve voltage: DC220V or DC24V

Nominal diameter: 25mm

Gas source pressure: 7-10kgf/cm²/(0.98±0.05Mpa)

listening distance: 1.0 Nautical mile

Central frequency: 315HZ

Audible distance 20≤Length<75m

Gas consumption: ≥8.3x10-3 m³/s

Sound level: ≥130dB

Colour: Blue gray

Material: Aluminium alloy

IP rating: IP56