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Product Description
YQ-15 Diaphragm Air Horn
Product Introduction
The YQ-15 Diaphragm Air Horn is a high-performance compressed air-driven fog signal horn engineered for medium to large vessels ranging from 75 to 200 meters in length . Designed to meet international maritime collision regulations (COLREGs) and IMO Resolution A.1021(26) , this pneumatic horn delivers a powerful and penetrating sound to ensure your vessel is heard clearly in low-visibility conditions such as dense fog, heavy rain, or storms.
The YQ-15 operates using compressed air as its power source (nominal pressure 0.98 MPa), driving a diaphragm to vibrate and produce its characteristic resonant tone . This diaphragm-based system is renowned for its simple structure, rugged reliability, and ability to produce a clear, sustained blast with low air consumption .
Constructed from high-quality copper alloy with corrosion-resistant materials , the YQ-15 is built to withstand the harshest marine environments with minimal maintenance requirements . It complies fully with international maritime safety standards and is available with various classification society certifications upon request .
Drawing
Technical Data
Type | Nominal Dimensions | Nominal Pressure | 1/3 Frequency Band | Frequency Range | Hearing Distance | length of ship | Dimensions(mm) | |||||
| L1 | L2 | H | M | D | d | |||||||
| (mm) | (Mpa) | (dB) | (Hz) | (Nautical mile) | (M) | |||||||
| YQ-4 | 4 | 0.39 | ≥120 | 250-700 | 0.5 | 12~<20 | 360 | 40 | 156 | M16x1.5 | φ124 | 6.5 |
| YQ-6 | 6 | 0.59 | 514 | 53 | 172 | M20x1.5 | φ160 | Φ11 | ||||
| YQ-8 | 8 | 0.59 | ≥130 | 1.0 | 20~<75 | 628 | 53 | 195 | M20x1.5 | φ188 | Φ11 | |
| YQ-10 | 10 | 0.8 | ≥134 | 568 | 60 | 252 | M20x1.5 | φ245 | φ11 | |||
| YQ-15 | 15 | 0.98 | ≥138 | 130-350 | 1.5 | 75~<200 | 720 | 32 | 300 | M30×2 | φ250 | φ13 |
Key Features
*Powerful Acoustic Output: Achieves a 1/3 octave band sound pressure level of ≥138 dB at 1 meter, with an audibility range of 1.5 nautical miles .
*Deep Penetrating Tone: Center frequency range of 130-350 Hz, ensuring maximum penetration and recognition over long distances .
*Pneumatic Operation: Uses compressed air (0.98 MPa nominal pressure) to drive the diaphragm, producing a powerful and reliable sound .
*Durable Construction: Marine-grade copper alloy body with corrosion-resistant finish for long service life in saltwater environments .
*Clear & Reliable Sound: Simple diaphragm design ensures consistent, with every activation .
*Compliance & Certification: Meets IMO A.1021(26), 2009 Alarm and Indicator Rules, and COLREG 1972 Appendix III requirements . Certification from ABS, USCG, LR, DNV, CCS, and other classification societies available .
*Versatile Application: Suitable for cargo ships, tankers, bulk carriers, and other vessels in the 75-200m range navigating inland and coastal waters .
