Filter by
Power Source
Audible Signal Type
Material
Volume (Sound) @ Distance
Air Consumption @ Pressure
DFARS Specialty Metals
Export Control Classification Number (ECCN)
REACH
RoHS
About Sound Levels
To choose an alarm or speaker that’s loud enough, first determine the decibel (dB) rating of background noise.
More
Long-Distance Whistles
Apply air or steam pressure to produce a shrill tone and alert workers. Signal continues as long as pressure is applied.
Volume | Environment | Sound Pattern | Dia. | Ht. | Material | Air Consumption | Operating Pressure | Max. Input Pressure | Conduit Size | Thread Type | Gender | Each | |
Air or Steam Powered | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 132 dBA @ 1 m | Outdoor | Continuous | 1" | 4 1/2" | Brass/Bronze | 0.9 cfs @ 100 psi | 50-200 psi | 200 psi @ 550° F | 1/4 | NPT | Female | 0000000 | 0000000 |
| 132 dBA @ 1 m | Outdoor | Continuous | 3" | 13" | Brass/Bronze | 4.6 cfs @ 100 psi | 50-200 psi | 200 psi @ 550° F | 3/4 | NPT | Female | 0000000 | 000000 |
| 124 dBA @ 1 m | Outdoor | Continuous | 1 1/2" | 9" | Brass/Bronze | 1.4 cfs @ 100 psi | 50-200 psi | 200 psi @ 550° F | 3/8 | NPT | Female | 0000000 | 000000 |
| 142 dBA @ 1 m | Outdoor | Continuous | 6" | 25" | Brass/Bronze/Stainless Steel | 14 cfs @ 100 psi | 50-200 psi | 200 psi @ 550° F | 1 1/2 | NPT | Female | 0000000 | 00000000 |
| 122 dBA @ 1 m | Outdoor | Continuous | 2" | 11 1/4" | Brass/Bronze | 3.7 cfs @ 100 psi | 50-200 psi | 200 psi @ 550° F | 1/2 | NPT | Female | 0000000 | 000000 |
Long-Distance Whistles with Valve
The quick-opening valve on these whistles allows manual operation—pull the valve while air or steam pressure is being applied to produce a shrill tone and alert workers. The valve has a hole for attaching chain.
| Volume | Environment | Sound Pattern | Dia. | Ht. | Material | Air Consumption | Operating Pressure | Max. Input Pressure | Conduit Size | Thread Type | Gender | Each | |
Air Powered | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 132 dBA @ 1 m | Outdoor | Continuous | 1" | 7" | Brass/Bronze | 0.9 cfs @ 100 psi | 50-200 psi | 200 psi @ 550° F | 1/4 | NPT | Female | 0000000 | 0000000 |
| 132 dBA @ 1 m | Outdoor | Continuous | 3" | 17 3/4" | Brass/Bronze | 4.6 cfs @ 100 psi | 50-200 psi | 200 psi @ 550° F | 3/4 | NPT | Female | 0000000 | 000000 |
| 124 dBA @ 1 m | Outdoor | Continuous | 1 1/2" | 12" | Brass/Bronze | 1.4 cfs @ 100 psi | 50-200 psi | 200 psi @ 550° F | 3/8 | NPT | Female | 0000000 | 000000 |
| 122 dBA @ 1 m | Outdoor | Continuous | 2" | 15 1/2" | Brass/Bronze | 3.7 cfs @ 100 psi | 50-200 psi | 200 psi @ 550° F | 1/2 | NPT | Female | 0000000 | 000000 |