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Make: WIKA Flow Switch, for Fire Sprinkler Wet Systems Model: Model FSFD 8 / Line Size: 200mm Die cast Aluminium housing (EN AC-46000), UL and FM approved Flow rate / Sensitivity: 4...10 GPM (15...38 LPM) Service pressure: 268 psi [18.5 bar]* Maximum surge: 18FPS (5.5m/s) Operating temperature: 0...68°C [32°F...154°F] Environment protection: IP 56/NEMA 4 rating suitable for indoor & outdoor applications; Switching Function: 2*SPDT (Form C) Electrical rating: 10A 125/250 VAC; 2A 30VDC Res. Horizontal/vertical mounting along the direction of arrow mark on cover & saddle; Refer Operating instructions 83795208 for compatibles pipes, installation and maintenance. *With UL346 the operating pressure is limited to 175 psi[12bar] for pipe size 8" (DN 200). All specifications are as per WIKA data sheet FL 50.01 - FM / UL Certified https://www.wika.com/media/Data-sheets/Flow/Flow-switches/ds_fl5001_en_co.pdf