Filtration system, immediately available! NEW in original packaging! 1.1. STfp-rFan DER4 450/550/18.5-2 | incl. backdraft damper Extraction fan, "DER4" series for installation on the clean air side, single-sided suction, direct drive. Key construction features: Spiral housing made from galvanised sheet steel, pre-fitted for horizontal installation in filters of the MultiStar series. IEC standard motor, high-performance impeller with backward-curved blades, designed for clean air side extraction. Suction nozzle with spark guard. Impeller made of welded steel, balanced both statically and dynamically. The fan is not suitable for conveying explosive dust/air mixtures for explosion protection reasons! Technical data and performance: Volumetric flow (max. permissible): 15,000 m³/h. Total pressure increase: 3,000 Pa, Inlet nozzle: 450 mm diameter, Outlet nozzle: 450mm x 355mm. Drive motor: 18.50 kW, 3000 rpm at 50 Hz | 3600 rpm at 60 Hz. Voltage / frequency: 400 V, 50 Hz. Motor efficiency class: IE3, premium efficiency. Weight, approx.: 330 kg. Rotation direction: RD 0 1.1.1. ST cold conductor 18.5 kW 1.2. ST MultiStar VR 6.6-195.25317A MultiStar filter in modular design, with vibration cleaning, for installation outside explosion hazard areas. Construction features: Galvanised, self-supporting sheet steel design. Shock resistance 200 mbar (type tested, Dekra-Exam 342863200a-23ExA-Sip). Housing negative pressure resistance max. 5,500 Pa (pulsating load should be avoided). EU type-tested burst panels. Weather protection cladding of the filter section with inspection door(s) and the necessary number of exhaust air connections (depending on air volume). Fire resistance EW 90 ef, MPA-tested. Clean air outlet, according to project drawing. BG-tested needle felt filter material, suitable for wood and paper dust and many other dust types. Filter bags, externally loaded, with reusable internal support elements. Filter cleaning is carried out during break periods. Expansion chamber for pre-separation. The permissible filling height of the expansion chamber depends greatly on the material properties (bulk density, particle size, tendency to bridge formation, etc.) and is approx. 400 to 700 mm. Inspection door with viewing window and limit switch. Connection chamber for rotary valve or similar. Technical data and dimensions: Filter area: 195 m²; Filter bags: 144 pcs; Filter bag length: 2,530 mm; Bag diameter: 170 mm; Shaker: 0.18 kW, 400 V, 50 Hz – 1 pc; Agitator drive: 1.50 kW, 400 V, 50 Hz; Base area, L x W: 2,880 mm x 2,880 mm; Required space, L x W: Required space as per system drawing; Height: 9,110 mm. Also included in delivery: Dry fire-fighting piping, consisting of: o C-pipe connection with blank coupling *), o Riser from filter bottom edge, o Distribution pipe system with extinguishing nozzles, o Note sign. Note: According to DIN EN 12779:2016 item 5.4.2.3, the water connection must be positioned 0.4 m to 0.8 m above the floor and, in case of fire, must be safely and easily accessible for connecting a fire hose. The BGHM additionally recommends installing a dirt trap in the riser. The components, installation materials, and working hours required for this are not included in the base price of the dry fire-fighting line. These are either provided by the customer or installed in special construction height = 3,000 mm. The support frame is not included in the scope of delivery and is specified and supplied separately. 1.2.3. ST additional S
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