Dry powder systems such as these are commonly used for the protection of vehicles and mobile machines. Fires are not uncommon when hydraulic oil from ruptured hoses, sprays onto hot exhausts with the protected enclosures.
As powder can be corrosive, it is recommended that it is discharged through stainless pipe or hose or a combination of both.
This image shows a high pressure hose leading from a 50lb dry power cylinder valve to a distribution block to which smaller branch lines are connected.
The stainless steel discharge pipes and nozzles with their blow off caps are seen here inside the generator enclosure of a Liebherr rubber tyre gantry crane. The point heat detectors that are connected to a control panel are seen at high level within the enclosure. Linear heat detection can also be used for this application.
These systems have a control panel as seen on the side of the generator's circuit breaker, that is energised by the vehicle's battery. The panel has it own internal battery, that will provide a fault indication in the event of low voltage; or a system activation.
Electrical manual release unit(s) can be connected to the control panel. The panel also has a volt free contact, that can be interfaced with a relay; for the control of sounders and the shut down of the vehicles engine.
This is Rottguard's generator, protected by two types of UL listed vehicle dry chemical fire suppression systems, used for training purposes at its facility.
Rottguard Fire Systems are also authorized distributors for the Badger Industry Dry Chemical system, commonly used for the protection of paint spray booths and other similar fire risks. Such systems are controlled in the same way as clean agent systems.