Blusapparaat voor cacaobonenroosters
Overal waar cacaobonen worden geroosterd, is het risico van brand door oververhit vet bijzonder groot. De systemen maken vaak gebruik van stoom als verwarmingsbron voor de braadlucht en het kan heel snel gebeuren dat verstopte spuitmonden en pijp sproeiers en leidingvernauwingen oververhit raken door het vet en het systeem in brand vliegt.
A water fire-fighting-system with special type solenoid valves has been designed to prevent the risk of fire.
The safety concept provides for electric opening of the NC-valves in case of fire whereby a spring-loaded pin is blocked in its position so that opening is ensured during fire fighting even if electrical units have already been destroyed by the fire.
In normal operation the solenoid valves are always closed for a long period (unless the system catches fire). Furthermore the valves are equipped with an electrical position indicator for status display.
Once the solenoid valves have been released their closure is only possible in a combination of "currentless state' and "pushing the reset button".
Developed, tested and successfully used:
Typ : 1/932-24-1001-.322-E6 24VDC 30Watt
- Diaphragm Valve
- NC - normally closed with spring
- threaded ends G3/4 or 3/4NPT
- 0-6 bar
- brass / perbunan
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