

R & D has been a constant feature of life at Acme as we constantly strive to improve the performance of even our most powerful whistles.
Standing still is not an option, customers requirements are constantly changing and we are always happy to look at special needs.
This test rig was specially designed to check operating pressures on whistles and limits for overblowing.
You can just see the Acme 477/58.5 Thunderer and below an industrial whistle being tested.




Tornado 2000 the worlds most powerful whistle.
Pressure Whistle three industrial whistles for use as, highly sensitive, low and high pressure warning devices.
- a) Steam & Wind sound effects
- b) The noise of wind whistling round a building
- c) A magpie call
Not bad for one whistle!


















