XTRALIS Vesda

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Xtralis VESDA works by continually drawing air into the pipe network via a high-efficiency aspirator. A sample of this air is then passed through a dual-stage filter. The first stage removes dust and dirt from the air sample before it allows the sample to enter the laser detection chamber for smoke detection. The second (ultra-fine) stage provides an additional clean air supply to keep the detector’s optical surfaces free from contamination, ensuring stable calibration and long detector life. From the filter, the air sample is passed through to the calibrated detection chamber where it is exposed to a laser light source. When smoke is present, light is scattered within the detection chamber and is instantly identified by the highly sensitive receiver system. The signal is then processed and presented via a bar graph display, alarm threshold indicators, and/or graphic display. The VESDA detectors are able to communicate this information to a fire alarm control panel, a software management system, or a building management system via relays or a High-Level Interface (HLI).

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VESDA ECO

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Safety Hi-Tech® leads the way in NAF® S 227 system design by supplying both a range of system pressures (“low” and “high”) and flexibility in cylinder sizes and design criteria. Proven performance and unquestionable quality make our NAF® S 227 an excellent choice for your fire extinguishing systems needs.

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