Die cast aluminum body Volume adjustable via air pressure Hermetically sealed diaphragms Provide complete signaling coverage Single or dual tone models Effective range - 3/4 mile (1.2 km)*
The K4 series units are designed for general signaling services and generate sound by means of vibrating diaphragms that modulate the flow of compressed air into resonating projectors. All horn shapes are mathematically calculated to amplify sound while closely retaining its fundamental frequency and natural harmonics.
These horns can be used for indoor/outdoor applications and are ideal for hazardous location use. Volume is adjustable by regulating air pressure. Typical applications include: emergency signaling applications such as mines, refineries and industrial facilities. Ideal for individual equipment and plant warnings.
Designed for mounting on air supply piping, supplying between 50 and 150 PSIG (3.5 and 10.5 kg/sq cm).
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1 1/4" (32mm) NPT Inlet
Single or dual tone frequency
Operating range - 50 to 150 PSIG (3.5 to 10.5 kg/sq cm)