Edwards K4 Series Catalog Page

Outdoor Warning Systems Horns Series KB series units are designed for general sig services and generate sound by means vibrating diaphragms that modulate the flow compressed air into resonating projectors horn shapes are mathematically calculated amplify sound while closely retaining its fun frequency and natural harmonics horns are suitable for indoor outdoor and for hazardous location use is adjustable by regulating air pressure for mounting on air supply piping between 50 and 150 PSIG 3.5 and kg sq cm Information Tone Air Horn Tone Air Horn No and Dimensions and Specifications High strength aluminum body and projector Adjust volume via air pressure Stainless steel diaphragm Provides complete signaling coverage Single or dual tone models Effect range 3 4 mile 1.2 km 1 Operating range 50 to 150 PSIG to 10.5 kg sq cm 1 1 4 32mm NPT inlet Hz at 100ft Consumption ltr sec 56 112 112 lb No to environmental and geographical conditions these models have a typical range of 1 4 mile 4 km assuming an ambient background level of 60dB a pressure of 100 psi 7.03 kg sq cm and temperature of 60 15.6 Derated per guidelines 10 dB per distance doubled Shipping in cm in cm dB