Wilo Star-RS 25/7
Glandless circulation pump for installation in pipes with manual three-stage speed control.With blocking current-resistant motor. Pump body in gray cast iron (bronze depending on type), impeller in glass-fibre reinforced synthetic material, stainless steel shaft with metal impregnated carbon plain bearings. Series application in cold water systems down to -10 °C.Reliable operation due to perforated shaft and filtering device in front of the cartridge
Model Star-RS 25/7 SKU 4119788 Dimensions/weight Weight, kg 2.8 Materials Pump shaft Stainless steel (X40Cr13) Pump housing Gray cast iron Bearings Metal graphite Working wheel Synthetic material (polypropylene - 40 GF) Permissible pumped medium (other media on request) Heating water (according to VDI 2035) • Water glycol mixture (max. 1:1; above 20% glycol, performance check required) • Permissible scope Temperature range at max. ambient temperature +40 ,°C -10...+110 Max. permissible operating pressure Pmax, bar 10 Motor protection not required (resistant to blocking currents) Insulation class F Network connection 1~230V, 50Hz Noise immunity EN 61000-6-2 Current consumption I, A 0,30 / 0,42 / 0,58 Power consumption P1, W 62 / 92 / 132 Speed control - Threaded entry for PG cable 1x11 Created interference EN 61000-6-3 Degree of protection IP 44 Speed N, rpm 2300 / 2650 / 2800 Electromagnetic compatibility EN 61800-3 Order data EAN number 4048482005751
Product Wilo Type Star-RS 25/7 Colour green Minimum suction pressure to avoid cavitation at pumped water temperature Minimum inlet pressure at liquid temperatures 50/95/110°C, m 0,5 / 3 / 10 Pipe connections Mounting length L0, mm 180 Thread G 1½ Threaded pipe connection Rp1