Powder-based extinguisher HRD

fixed

The HRD extinguishing cylinders are among most versatile and advanced explosion suppression systems. Applications Explosion protection of equipment units (including silos, filters, cyclones, mixers, drying plants, pelleting machines, etc.) in the presence of flammables at explosive concentration levels. The HRD cylinders provide explosion protection for processing equipment units, vessels, and ductwork that contain class ST1 to ST3 particulate matter, gases and/or hybrid mixtures in all industrial sectors. Specifications Each HRD extinguishing cylinder (which contains a suppressant powder) is sealed with a safety membrane underneath which a detonating device is installed with a membrane shearing coil. When the detonator is triggered by a control unit output, within 1.5 millisecond it propels the membrane coil which ruptures the membrane. The HRD extinguishing cylinder is pressurized with nitrogen to 60 bars; the breached membrane allows expulsion of the KIDDEx suppressant powder towards the protected equipment unit(s) (and the HRD cylinder emptying time is 35 to 80 ms). Application temperature: -20°C to +70°C. Approved Ex-zones of use: Zone 22, 21, 2, and 1 outside the protected equipment; Zone 22, 21, 20, 2, 1, and 0 inside the protected equipment. Protection type: II ½ D T 85C IP 65 ATEX-compliant design