WD-3A Fog Horn:

China WD-3A Fog Horn:

WD-3A 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 DC24

Nominal diameter: 25mm

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

listening distance: 2.0 Nautical mile

Central frequency: 125HZ

Audible distance : 200m

Gas consumption: ≥10x10-3 m³/s

Sound level: ≥138dB

Colour: Blue gray

Material: Aluminium alloy

IP rating: IP56