Kahlenberg Industries

Kahlenberg Industrial Horns are powerful, high decibel signals backed by years of successful performance in coal yards, chemical plants, refineries, open pit mines and industrial facilities throughout the world. All Kahlenberg Brothers alarm products are designed to be operated indoors as well as in the most severe outdoor applications. They are simply constructed and extremely reliable resulting in a very low cost of use as compared to more complicated means of wide area notification. All of these horns are available for use with optional solenoid and manually activated valves as well as industrial timers.

Viewed here is just a sample of the air horn products available from Kahlenberg Brothers. Contact us for additional information on the full Kahlenberg Brothers product range.

Model K-1 Directional, Single Tone Industrial Air Horn

Effective Outdoor Coverage Up to 3.0 Kilometers

SPL (Loudness) on Total: 140 ± 1 dBA @ 1 meter, 70 dB @ 3km in still air
Operating Medium: Air, nitrogen, CO2, 1/2" NPT inlet
Air Consumption: 11 L/Sec [24 SCFM] @ 7 bar [100 PSIG]
- Ideal for outdoor Industrial applications
Control: Manual, solenoid or combination valve
Fundamental Frequency: 311 Hz ± 10 Hz
Energy efficient with hermetically sealed stainless steel diaphragm assembly
- Will operate on a wide range of pressure without tuning and field adjustments for years of trouble-free service
- High strength aluminum casting and stainless steel fasteners
Operating Temperature: -40ºC to +85ºC [-40ºF to +185ºF]
Finish: Primed and painted red alkyd enamel
Degree of Protection: IP 54

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Model K-1 Directional, Single Tone Industrial Air Horn

Model K-1R1 Bi-Directional, Single Tone Industrial Air Horn

Effective Outdoor Coverage Up to 3.0 Kilometers

Operating Medium: Air, nitrogen, CO2, 1/2" NPT inlet
Control: Manual, solenoid or combination valve
SPL (Loudness) on Total: 140 ± 1 dBA @ 1 meter, 70 dB @ 3 km in still air
Consumption: 22 L/sec [45 SCFM] @ 7 bar [100 PSIG]
Audibility: 3 km (bi-directional) on still air
- Single tone, 311 Hz fundamental frequency
- Energy efficient with hermetically sealed stainless steel diaphragm assembly
- Will operate on a wide range of pressure without tuning and field adjustments for years of trouble-free service
- High strength aluminum casting and stainless steel fasteners
Operating Temperature: -40ºC to 85ºC [-40ºF to 185ºF]
Finish: Primed and painted red
Degree of Protection: IP 54

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Model K-1R1 Bi-Directional, Single Tone Industrial Air Horn

MODEL K-4-1-EN-H-120 Omni-Directional, Single Tone Industrial Air Horn

Effective Outdoor Coverage Up to 3.0 Kilometers

SPL (Loudness) on Total: 140 ± 1 dBA @ 1 meter, 3 km in still air
Operating Medium: Air, nitrogen, CO2, 3/4" NPT inlet
Air Consumption: 44 L/Sec [96 SCFM] @ 7 bar [100 PSIG]
Control: Manual, solenoid or combination valve
Single tone, 311 Hz fundamental frequency, engineered to produce full harmonic contents up to 12 octave in order to enhance warning effectiveness
Ideal for high-noise industrial areas
Pole mounted steel enclosure for central mounting
Fully enclosed and heated combination valve
Energy efficient with hermetically sealed stainless steel diaphragm assembly
Will operate on a wide range of pressure without tuning or adjustment for years of trouble free service
Constructed of high strength cast aluminum and stainless steel fasteners
Operating Pressure: 3-10 bar [50-150 PSI]
Operating Temperature: -40ºC to +85ºC [-40ºF to +185ºF]
Finish: Painted red (alkyd enamel)
Degree of Protection: IP 54

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MODEL K-4-1-EN-H-120 Omni-Directional, Single Tone Industrial Air Horn

Model K4-12-EN Omni Directional, Dual Tone Wide Area Warning System

Effective Outdoor Coverage Up to 3.5 Square Kilometers

SPL (Loudness): 141 ± 1 dBA on total @ 1 meter, 3.5 km in still air
Operating Medium: Air, Nitrogen, CO2 - 1-1/4" NPT Air Inlet
Control: Manual, and Solenoid Combination valve
Air Consumption: 91 L/sec [192 SCFM] @ 7 bar [100 PSIG]
Fundamental Frequency: 311 Hz / 370 Hz ± 20 Hz (Other frequencies available)
Fully enclosed and heated air horn for corrosion and weather protection
Combination valve set up allows for signaling of all 8 horns at once either manually or electrically controlled.
Solenoid valve comes standard with explosion proof coil and are available in 120VAC, 240VAC/50-60Hz or 12, 24, 48VDC
Dual Heaters supplied with thermostat preset to turn on at 4ºC [40ºF] and off at 16ºC [60ºF]
Horns constructed of cast aluminum with stainless steel hardware
Frame and side panels constructed from mild steel.
Operating Pressure: 2-10 bar [30-150 PSI]
Operating Temperature: -40ºC to +85ºC [-40ºF to +185ºF]
Finish: Painted red (alkyd enamel)
Degree of Protection: IP 56

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Model K4-12-EN Omni Directional, Dual Tone Wide Area Warning System

MODEL KM4-135-EN Omni Directional, Single Tone Wide Area Warning System

Effective Outdoor Coverage Radius of Up tO 7.0 Kilometers

Fully enclosed and heated air horn for corrosion and weather resistance (available non-heated)
SPL (Loudness): 149 ± 1 dB total @ 1 meter, 7 km in still air
Operating Medium: Air, nitrogen
Control: Manual and solenoid combination valve
Air Consumption of Each Horn: 271 L/sec [576 SCFM] @ 9 bar [125 PSIG]
Single tone, 135 Hz (other frequencies available)
Heaters supplied with thermostat preset to turn on at 4ºC [40ºF] and off at 13ºC [55ºF]
Solenoid valves come standard with explosion proof coil and are available in 120VAC, 240VAC/50-60Hz or 12, 24, 48VDC
Designed for arctic freezing conditions
Constructed of aluminum with steel supporting frame
Operating Pressure: 3-12 bar [50-175 PSI] (higher pressures available}
Operating Temperature: -40ºC to +65ºC [-22ºF to +149ºF]
Finish: Primed and enamel coated twice
Degree of Protection: IP 55

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MODEL KM4-135-EN Omni Directional, Single Tone Wide Area Warning System

Industrial Signal Timer Model M-415

The M-415 Signal Controller. . . just one of a full range of signal timers . . . is a fully enclosed electronic device which provides for programming and control of 7 day or full year timed signals. A solid state time switch permits 4000 ON/OFF set points on independent daily schedules through a 7 day time period and across 99 separate holiday schedules. A factory installed field replaceable lithium battery maintains accurate time keeping and calendar information for a minimum of 8 years.

Programmable for 1000+ ON/OFF Events
Minimum ON/OFF Times: 1 second
Maximum ON/OFF Times: Indefinite
Voltages Available: 120/208/240/277 A.C. 1 Ph., 50/60 Hz

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