APU-874 Air purging unit

SPARK DETECTORS APU-874 Air purging unit The air purging unit model APU-874 is a mechanical unit designed to keep clean the window of the mounting unit SAM-871 and protect the spark detector RIV-601P/S from the high temperatures of the duct (max 120°C) by means of an air jet. Brass universal 3/8”M air fitting, Parker (female…

PAC-846 Water flow switch ATEX II 3D

SPARK DETECTORS PAC-846 Water flow switch ATEX II 3D Designed to monitor the spray water flow in the spray nozzle during the extinguishing operation. Installed between the solenoid valve and the spray nozzle, will signal any water leakage due to solenoid valve malfunction. Brass tee coupling 1/2″ female (3/4″ adapters separately supplied). Changeover contact 1A…